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Thread: Which Digital Back for my Contax 645

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    Which Digital Back for my Contax 645

    Some help please.

    I've now purchased a used Contax 645. After reading a bit and learning from all of you, I've decided to start looking for a "good starter" digital back. The Kodak Pro Back that some of you have already referenced looks like a reasonable first choice, but there may be others. Would you please give me your thoughts on what you would consider "must haves" as it relates to a first digital back (like many of you, I fully intend to trade-up eventually) for the Contax 645? Are there variations of the Kodak Pro Back to stay away from? Do other manufacturers such as Phase, Leaf, Sinar, etc. have 'starter' backs available for a good price? Thank you. Ray

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    Re: Which Digital Back for my Contax 645

    Quote Originally Posted by RayM View Post
    Some help please.

    I've now purchased a used Contax 645. After reading a bit and learning from all of you, I've decided to start looking for a "good starter" digital back. The Kodak Pro Back that some of you have already referenced looks like a reasonable first choice, but there may be others. Would you please give me your thoughts on what you would consider "must haves" as it relates to a first digital back (like many of you, I fully intend to trade-up eventually) for the Contax 645? Are there variations of the Kodak Pro Back to stay away from? Do other manufacturers such as Phase, Leaf, Sinar, etc. have 'starter' backs available for a good price? Thank you. Ray
    Hi Ray. Welcome to GetDPI!

    Short answer: get the best back you can afford. Buy demo/used backs.

    The Kodak C645 DCS Proback is a 16MP square back and is really the lowest entry point digital back worth buying. Those backs also have an optional AA filter that may come in handy. The larger pixel sizes are great, but the probability for moire is higher. These backs are in the $3K - $4K range.

    The next step up from there is probably the Phase P20, which is also a 16MP square sensor like the Kodak. The used prices for these are around $5 - $6K.

    After that is the Phase P21, which is 18MP and probably the lowest cost rectangular format sensor (4:3) for the Contax. Used/demo price is around $7K - $8K.

    After that are the 22MP - 28MP backs: including Hasselblad CF22, Phase P25, Leaf Aptus 65, and Sinar eMotion 54. Used backs in this category will start at least $8K but typically closer to $10K or more. These backs are in still in high demand since they offer the largest pixel size (9um) across the largest sensor area (roughly 36 x 48, except for the Leaf which is 33 x 44 and does have smaller pixels).

    You really do not want to know what comes after that, so examine the above backs and go for the best one you can afford. Any of the above will most likely knock your socks off coming from 35mm format.
    Last edited by David Klepacki; 17th April 2008 at 14:44.

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    Senior Member Graham Mitchell's Avatar
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    Re: Which Digital Back for my Contax 645

    Good answer, David. I would just add that the Sinar e54LV is the newest 22MP model but there should be used/refurbished e22s out there.

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    Re: Which Digital Back for my Contax 645

    David and Graham, thank you very much. I'm tempted to put in a bid on the current eBay listing for the kodak pro back just to get a start on this. The sinar 22 MP models look very interesting, I'll have to study them very quickly. And, unless I'm wrong, there seems to be fairly brisk "buy it - try it - keep it or sell it" activity without taking too much of a hit. thank you again, this is the info I was looking for. Ray

    PS David, I think your images on a website I saw the other day are really good, landscapes/seascapes, ocean/coast shots. Really nice. And, Graham, just looked at your website. Very very nice shots.

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    Senior Member Graham Mitchell's Avatar
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    Re: Which Digital Back for my Contax 645

    Ray, just be careful to ensure that you are aware of all the limitations of the Kodak back. Are you happy with the resolution? Colour? High ISO performance? Aspect ratio? Frame rate? Buffer limitations? Storage? Can it be operated untethered? If so, how is the screen and controls? Can it be operated tethered? What software is required to do this? How will you process the files? Is there any warranty? Can it be repaired if necessary? Any known issues such as bugs, battery life? etc

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    Subscriber gogopix's Avatar
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    Re: Which Digital Back for my Contax 645

    Dear ray

    Graham raises important points, but read the other C645 threads abd you will see a lot of discussion . The repair continues with Midwest and there is quite a float of parts.
    The ISO and resolytion, color etc is quite good. I went Kodak>P25>P45>p45+ and I still am considering the Kodak c as a backup
    Irakly has two and may be selling one. Then there is the one frpom Kelly Photo (Jim)

    I am happy to send you raw files (they are .dcr and proprietary but the Photodesk SW is free and available. The "Looks" SW is also really good for portrait/product work.

    Let me know, as I have a yousendit account
    Just PM me and I will send you the SW and a few files (let me know type.

    BTW 400 ISO is quite usable (I have an example somewhere here
    :-)

    regards
    Victor

    PS I can also send P25 files for comparison. That would be the upper end of a starter back 22 vs 16 MP and higher ISO later technology.

    PPS the one downside of the Kodak, even though cheap, is no trade up. but find out the policies. I know Phase and SInar have good programs, but I have heard that Hasselblad and Leaf are a lot more expensive to change.


    PPPS The phase and even Kodak backs (with Kapture gp stuff) can be used in view cameras like the Alpa, Cambo Kodak only in special cases.

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    Re: Which Digital Back for my Contax 645

    Graham and Victor, thank you for your thoughtful and generous posts. While I've pretty much scoured the Internet over the last several days trying to learn everything I can learn to make an intelligent decision, the questions you're raising, and my inability to answer them easily tell me that I'm not ready to invest yet. I felt a bit of pressure because of the current eBay auction on the Kodak unit, but you're helping me make a better decision by holding off until I'm fully ready to make a smart choice.

    All in all, from what I've seen, that Sinar e22 sure looks like a winner, but that's only with sketchy information that I've been able to gather. And, the Phase backs look great too, I think it's time for me to just take my time and save up and get what I want.

    And, Victor, yes, I'll most definitely take you up soon on your offer to send over some files. Thank you. Ray

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    Senior Member irakly's Avatar
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    Re: Which Digital Back for my Contax 645

    maybe for me it is a clear conflict of interest, as i have dcs proback 645c for sale, but in my opinion, this back delivers the best price/performance ratio. i do not see any advantages of, say, P20 compared to kodak. moreover, with my P25 i have yet to figure out how to get colour fidelity and punch that kodak delivers with no effort at all.

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    Subscriber gogopix's Avatar
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    Re: Which Digital Back for my Contax 645

    well, Irakly and I both can show the P25 and Kodak c back examples. I would encourage you to also try for Leaf and Sinart back examples.

    HOWEVER, they all have pluses and minuses, and you shopuld consider the areas of importance to you, including long term investment value (via trade up)

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    Re: Which Digital Back for my Contax 645

    The Kodak ProBack 645C is a no brainer decision. It was over engineered and built like a tank. I does shoot tethered and the files are supported by Adobe Camera RAW.

    The thing to watch out for on the Contax is that some backs need to be calibrated to the camera in some cases. Mine needed that. The fast aperture lenses make precise calibration important. Actually many of the non dedicated older backs often require "shims" to calibrate the back to the camera. I do not know if Kodak still provides that service for the Probacks.

    The Kodak is a crop frame camera that shoots to a square ... if you are a huge fan of wide angle shots, then a 22 meg. rectangular back may be more to your liking.

    I'm not sure of the prices being quoted. If the Kodak truly can be had for that small of an amount , then the decision is even more of a no-brainer.

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    Re: Which Digital Back for my Contax 645

    Irakly and Victor, have you found the "crop factor" of the Kodak Pro back to be a disappointment to you?

    When you shoot with this back, what do you find irritating or disturbing, if anything?

    When you think about "upgrading" from this Kodak back, what will you most look forward to?

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    Senior Member irakly's Avatar
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    Re: Which Digital Back for my Contax 645

    in fact, it was the square frame that made me use contax 645 that was just sitting on a shelf for more than a year. i've always shot 6x6 before and because of that hated 645 frame.
    i wish it was 49x49, but since it was not, i just lived with it and shot a few thousand images that now are in galleries of four countries, in books and magazines.
    the only type of photography where i wish it were full frame is macro and small product, which i do commercially a lot. 4/120 macro is just too long for that crop.
    now i have phase one p25 and one of my kodak backs as a backup. i bought p25 because it is ideally suited for tilt/shift work, yet files are not too huge.
    as for the file size, i printed 180x180cm photos from the kodak back, and those were lightboxes, not for distant viewing.

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    Re: Which Digital Back for my Contax 645

    Irakly, thank you for the clarification. When you shoot portraits, which lens do you use? I am getting the standard 80 that comes with the c645 and the 140. Do you find the nearst focusing ability of these lenses to hold you back in any way? (I've read that this is a shortcoming for some users of both of these lenses).

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    Senior Member irakly's Avatar
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    Re: Which Digital Back for my Contax 645

    Ray, I am a Leica shooter, so close focusing in portraiture is not my thing Anyway, if you need to get closer, just mount a lens on an extension ring, what's the big deal.
    With the kodak back i found that 140 is just too long for portraits, but 2/80 is ideal. i mean, waist portrait. Moreover, 2/80 is better for wide open portraits because of its unique way of rendering tonal gradations at full aperture.
    For the picture above i actually used something completely out of line it's Schneider Componon-S 5.6/180 mounted on tilt/shift bellows. This is product photography, not portraiture

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    Re: Which Digital Back for my Contax 645

    Thanks Irakly, I was indeed wondering about this photo you posted. After being in contact like this with you guys this evening I'm seriously thinking of going for the Kodak. I think I understood from your note the other day that you may have one for sale as we speak?

  16. #16
    DougDolde
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    Re: Which Digital Back for my Contax 645

    I'll add my $.02 as I have had two Kodak backs for the Contax 645. Mainly I am a landscape shooter and while I did get some very nice shots with this setup, I was too taken by 4x5 film in my Arca Swiss 4x5 Field to accept the lower resolution it gave.

    A couple years later now I have acquired a basic Contax 645 kit again and am just about ready to acquire another digital back. But this time I think it will be a Leaf Aptus 22.

    I really am tired of film in a way. Not that I don't like the look and the huge files/resolution but getting a good scan requires outsourcing for me since I am never happy with flatbed scans like from an Epson and don't want to invest in a high end scanner. So I either buy Imacon 949 scans or Tango drum scans. It's a slow process and expensive, though a high quality digital back isn't cheap either by any means.

    While I do like the square format, I prefer the 4:5 aspect. Or 3:4 which the Aptus 36x48 mm sensor gives. Cropping the Kodak to this aspect reduces the effective resolution significantly.

    I also want to be able to do shift stitching (possibly on a Horseman SW-D) to get ultra resolution files. You can effectively expand the sensor size to 70x82 mm with shifts and stitching. The Kodak as far as I know isn't capable of this at least in the C645 version because it doesn't have the X-Synch port to trigger the back with a copal shuttered lens.

    Pan stitching does work fine on the Kodak but with wider lenses parallax can be tricky. Longer lenses work best for this.

    I were you I'd start with a Kodak back. The price is right, and you won't lose much down the road if you decide to Ebay it and get something better. They are indeed built ultra strong and very high quality. Just don't buy a battered one. Paying a little more for a mint one will be much more satisfying.

    That's my perspective today. Tomorrow it may change.

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    Senior Member irakly's Avatar
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    Re: Which Digital Back for my Contax 645

    automatic photoshop cs3 panorama stitching with 35mm is piece of cake, just make sure you are overlapping. this picture is three kodak photos with 3.5/35

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    Re: Which Digital Back for my Contax 645

    Thanks for weighing in Doug. Yes, ideally, I see myself going for a wider back, like a full 645 size....eventually. It's just not in the cards right now, but I do want to get something to get me going. Just minutes ago I did a googled a search that got me over to a site that had a jpg version of a kodak pro back shot, so I downloaded it and put it into photoshop and played with it for awhile. Most interesting how easily this jpg goes up to 300dpi in such a high quality manner. Reminds me of M8 files actually. My 1DsMarkII files don't do that with such ease, and I'm glad I'm not asked to print that large with my Canon files. My problem is living up here in a place where we don't have any access to equipment like this, so I make my choices by reading what folks like you have to say. I've learned so incredibly much. So, I have to buy sight unseen. And while I'm still afraid to make a bad decision on this, as bad decisions are really expensive, I'm beginning to think that maybe the Kodak is the best decision to make for now. Now, to find one at a good price, that's another issue. Thank you.

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    Re: Which Digital Back for my Contax 645

    That stitched image is pretty impressive, Irakly, especially in such a tight space.

  20. #20
    DougDolde
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    Re: Which Digital Back for my Contax 645

    That is a nice stitch indeed Irakly. I never tried it with CS3, was older version when I had the Kodak back.

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    Senior Member irakly's Avatar
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    Re: Which Digital Back for my Contax 645

    you don't say... the place is actually much smaller than it looks thanks to 35mm that's how i pay my bills, well, some of them.

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    Senior Member irakly's Avatar
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    Re: Which Digital Back for my Contax 645

    Quote Originally Posted by DougDolde View Post
    That is a nice stitch indeed Irakly. I never tried it with CS3, was older version when I had the Kodak back.
    all you have to do (among other obvious things) is to keep exposure consistent. actually, it even tries to even out the exposure, but falls short to adjust colour saturation properly if the difference between shots is more than 0.5EV.

  23. #23
    thsinar
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    Re: Which Digital Back for my Contax 645

    Ray,

    My advice here is the same as many others: take your time and don't let pressure make you taking wrong decisions. Have in mind and do balance all the factors raised (e.g.) by Graham: they are very important factors to consider. What seems at the first hand to be a cheap way to make the jump can later become the opposite, "a wallet burner".

    As always, I am at your disposal for any question you might have about Sinarbacks, anytime, except for the financial/price ones.

    Best regards,
    Thierry

    Quote Originally Posted by RayM View Post
    I felt a bit of pressure because of the current eBay auction on the Kodak unit, but you're helping me make a better decision by holding off until I'm fully ready to make a smart choice.

    All in all, from what I've seen, that Sinar e22 sure looks like a winner, but that's only with sketchy information that I've been able to gather.

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    Subscriber gogopix's Avatar
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    Re: Which Digital Back for my Contax 645

    well
    no one is bidding on Tim Kelly's kadak back/. maybe scared off. If it doesnt sell, someone might want to call tomorrow and negotiate for the back.
    does anyone know him? (or is it just a front?}

    BTW you are not going to go wrong with the kodak anywhere under 4k. I used happily for several years.

    on the other hand there are some VERY attractive prices for the Phase backs as seen here, and they would be upgradable. I cannot comment on the Sinar, since price info seems a little more scarce. However they too are upgradable. Perhaps Graham can share his e22 to e54 upgrade experince. (both 22MP I believe.)

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    Senior Member irakly's Avatar
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    Re: Which Digital Back for my Contax 645

    it's kinda weird what has has happened to this back in the previous auction. he claims that some scam artist bid on it, so he had to void the auction. how come he did not sell to the runner-up? i guess, that's what scares people off.
    although, knowing habits of ebay buyers, i can say that things start happening like five minutes before the auction close, especially on big ticket items. so, hold your breath

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    Re: Which Digital Back for my Contax 645

    im sure if the runner up was pushed way high, he may have just refused. But unless it is a total scam, Tim is known and was quoted in shutterbug, in 2003, so maybe this is really his camera (though I doubt it with only 9k actuations.

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    Senior Member irakly's Avatar
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    Re: Which Digital Back for my Contax 645

    so what? my working back has something like 65000 actuation, but a backup that i am selling is only around a thousand. it is still mine
    or maybe he figured out a way how to reset the odometer

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    Re: Which Digital Back for my Contax 645

    Thierry, thank you, yes, eventually I will ask you a number of questions about the sinars.

    For now, my short term strategy is to get the kodak pro back for the contax (it seems to make the most sense for what I want to do with the camera for the immediate next few years), then, sometime later, I will pursue a "full frame" 645 option.

    Thank you.

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    Re: Which Digital Back for my Contax 645

    Irakly, I've sent you a PM about your Kodak pro back for the Contax.

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    Re: Which Digital Back for my Contax 645

    Quote Originally Posted by fotografz View Post
    The Kodak ProBack 645C is a no brainer decision. It was over engineered and built like a tank. I does shoot tethered and the files are supported by Adobe Camera RAW.

    The thing to watch out for on the Contax is that some backs need to be calibrated to the camera in some cases. Mine needed that. The fast aperture lenses make precise calibration important. Actually many of the non dedicated older backs often require "shims" to calibrate the back to the camera. I do not know if Kodak still provides that service for the Probacks.

    The Kodak is a crop frame camera that shoots to a square ... if you are a huge fan of wide angle shots, then a 22 meg. rectangular back may be more to your liking.

    I'm not sure of the prices being quoted. If the Kodak truly can be had for that small of an amount , then the decision is even more of a no-brainer.
    Marc

    Do you have a sense of how the Kodak back compares to the Hassy CFE back? I know both are 16Mpx but i can't find any data as to which sensor the hassy is using

    Thanks

    Woody

  31. #31
    thsinar
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    Re: Which Digital Back for my Contax 645

    Woody,

    there was only one 16 MPx CCD produced at that time, from Kodak. Other than that, the backs certainly produce different raw files, inherent to every back maker.

    Best regards,
    Thierry

    Quote Originally Posted by woodyspedden View Post
    Marc

    Do you have a sense of how the Kodak back compares to the Hassy CFE back? I know both are 16Mpx but i can't find any data as to which sensor the hassy is using

    Thanks

    Woody

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    Sr. Administrator Jack's Avatar
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    Re: Which Digital Back for my Contax 645

    I'll add my .02...

    Like Doug, I have owned a few Kodak DCS backs back when I shot with the C645. The net was just like Doug: I preferred using my 4x5. (I am also primarily a landscape shooter.) I also prefer a full digital workflow, even considering the superior file a good, quality 4x5 scan can render.

    Enter the ZD. (FWIW, it essentially the same file as the Leaf 22, uses the same sensor, has the same look as the Leaf which you can get for your Contax.) It was (is) at a pricepoint I could justify for landscape work. (A superior 4x5 drum scan from a professional service can cost upwards of $100 each. Add the roughly $15 per shot film and processing cost and the buy-back on the ZD doesn't take long with 4x5.)

    Bottom line is I find the files from the ZD significantly superior to the Kodak DCS from a detail and smoothness standpoint, both qualities beneficial in landscape. However, the Kodak has a sort of edgy look I really liked too -- kind of like ISO 400 color neg film shot on MF. Also the square crop lent itself to some really interesting compositions.

    If indeed the DCS backs are at the sub-$4K price, then I'd also agree with Marc that is a no-brainer starting point. LOTS of great images to be made with that back, and IMO it is still better than any DSLR option out there from a file quality standpoint. At sub $4K, I'd like to find one for my M645 just for the look...

    Again, my .02 only,
    Jack
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    "Perfection is not attainable. But if we chase perfection, we can catch excellence."

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    Re: Which Digital Back for my Contax 645

    Thanks Jack, decisions, decisions! As I've been participating here at getdpi for the last week or so based on your recommendations a couple of weeks ago (thanks for that, by the way, just a terrific site with generous people), I've learned lots and I'm beginning to develop a "mental map" of how things fit together, albeit a very rough map. I have, as of this moment, anyway, little appreciation for the finer points of performance that different manufacturers bring to the table. So, lots of learning to do. Thanks again, Jack. Ray

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    Re: Which Digital Back for my Contax 645

    PS re stitching in CS3: Yes, it rocks Bottom line is you don't even need to use a tripod to make the captures since this version also transforms each frame as needed to more perfectly align at the pixel level -- and yes, it works very well. It generates masks to blend the images at adjacent, similar tone pixels with no feathering...

    Here is a shot I took this summer, 5 frames hand-held. Tough to see the total quality in this relatively small jpeg, but you cannot find seams even at 100% view:

    Jack
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    "Perfection is not attainable. But if we chase perfection, we can catch excellence."

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    Super Duper
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    Re: Which Digital Back for my Contax 645

    Quote Originally Posted by woodyspedden View Post
    Marc

    Do you have a sense of how the Kodak back compares to the Hassy CFE back? I know both are 16Mpx but i can't find any data as to which sensor the hassy is using

    Thanks

    Woody
    Yes, the Hasselblad CFV back is better. It has benefited from many industry improvements and firmware upgrades. Go to the Hasselblad site: Planet V and click on "Word" ... I'm in there with other photographers ... and talk about the CFV back. It just hooks right up with no sync cords or anything.

    Frankly, I'm sorry I sold my CFV.

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    Re: Which Digital Back for my Contax 645

    Quote Originally Posted by Jack Flesher View Post
    PS re stitching in CS3: Yes, it rocks Bottom line is you don't even need to use a tripod to make the captures since this version also transforms each frame as needed to more perfectly align at the pixel level -- and yes, it works very well. It generates masks to blend the images at adjacent, similar tone pixels with no feathering...

    Here is a shot I took this summer, 5 frames hand-held. Tough to see the total quality in this relatively small jpeg, but you cannot find seams even at 100% view:

    I love that shot Jack.

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    Re: Which Digital Back for my Contax 645

    Quote Originally Posted by RayM View Post
    Thanks Jack, decisions, decisions! As I've been participating here at getdpi for the last week or so based on your recommendations a couple of weeks ago (thanks for that, by the way, just a terrific site with generous people), I've learned lots and I'm beginning to develop a "mental map" of how things fit together, albeit a very rough map. I have, as of this moment, anyway, little appreciation for the finer points of performance that different manufacturers bring to the table. So, lots of learning to do. Thanks again, Jack. Ray
    Yes Ray... on this forum, you become richer in information ... and instantly poorer in cash :-)

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    Re: Which Digital Back for my Contax 645

    Hi, yes, truth be told, I've been, uh, "influenced," in some other forums that some of you guys have been part of, and I need to tell you that I've been corrupted but good when it comes to quality optics and equipment. However, a community of addicts is still a community(!) and I'm proud to be a part of it! Gosh it's good to have so many friends who want to help me with my investments!

  39. #39
    Sr. Administrator Jack's Avatar
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    Re: Which Digital Back for my Contax 645

    Thanks Marc. Every now and again I get lucky
    Jack
    home: www.getdpi.com

    "Perfection is not attainable. But if we chase perfection, we can catch excellence."

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    Administrator, Instructor Guy Mancuso's Avatar
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    Re: Which Digital Back for my Contax 645

    Quote Originally Posted by fotografz View Post
    Yes Ray... on this forum, you become richer in information ... and instantly poorer in cash :-)
    Hey i resemble that remark. LOL
    Photography is all about experimentation and without it you will never learn art.

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    Administrator, Instructor Guy Mancuso's Avatar
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    Re: Which Digital Back for my Contax 645

    Quote Originally Posted by RayM View Post
    Hi, yes, truth be told, I've been, uh, "influenced," in some other forums that some of you guys have been part of, and I need to tell you that I've been corrupted but good when it comes to quality optics and equipment. However, a community of addicts is still a community(!) and I'm proud to be a part of it! Gosh it's good to have so many friends who want to help me with my investments!
    Not the case at all . If i am going to be broke i am taking friends with me. We can all share the misery together.
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  42. #42
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    Re: Which Digital Back for my Contax 645

    Jack,
    That pano is breathtaking... handheld no less. I'm going to the next workshop for sure.

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    Re: Which Digital Back for my Contax 645

    Quote Originally Posted by Jack Flesher View Post
    PS re stitching in CS3: Yes, it rocks Bottom line is you don't even need to use a tripod to make the captures since this version also transforms each frame as needed to more perfectly align at the pixel level -- and yes, it works very well. It generates masks to blend the images at adjacent, similar tone pixels with no feathering...

    Here is a shot I took this summer, 5 frames hand-held. Tough to see the total quality in this relatively small jpeg, but you cannot find seams even at 100% view
    Jack, it looks amazing. But there MUST be visible artifact where the water surface is stitched together. No matter what pano technique you use, the constantly moving water surface can not match between shots.

    Still, though, thanks for showing what a great pano can be made, with no special equipment or software.

  44. #44
    Administrator, Instructor Guy Mancuso's Avatar
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    Re: Which Digital Back for my Contax 645

    Quote Originally Posted by David K View Post
    Jack,
    That pano is breathtaking... handheld no less. I'm going to the next workshop for sure.
    Well it was just announced David only a short distance from you to boot. Plus i just learned we have a bunch of demo gear to be on site in the MF arena to try out. This is going to be a fun time folks. One of the best places in the world to shoot is Old San Juan. Please take a look at the announcements and be there.

    More details on this next week.
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  45. #45
    Sr. Administrator Jack's Avatar
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    Re: Which Digital Back for my Contax 645

    Quote Originally Posted by tom in mpls View Post
    Jack, it looks amazing. But there MUST be visible artifact where the water surface is stitched together. No matter what pano technique you use, the constantly moving water surface can not match between shots.

    Still, though, thanks for showing what a great pano can be made, with no special equipment or software.
    Nope, none visible, not even in the clouds which were moving too. The reason is as I said above, the new CS3 version actually masks along an edge of adjacent pixels, no feather, so worst case you have to find an artifact 1 pixel wide. So they may be there, but in practice, you never see them. Bottom line is it works phenomenally well.
    Jack
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    "Perfection is not attainable. But if we chase perfection, we can catch excellence."

  46. #46
    thsinar
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    Re: Which Digital Back for my Contax 645

    I can confirm how goods this works in CS3: I have seen it with my own eyes, and it's just amazing. The stitching path does not go in a straight and in a linear way, but is following a "zig-zag" pattern.

    Thierry

    Quote Originally Posted by Jack Flesher View Post
    Nope, none visible, not even in the clouds which were moving too. The reason is as I said above, the new CS3 version actually masks along an edge of adjacent pixels, no feather, so worst case you have to find an artifact 1 pixel wide. So they may be there, but in practice, you never see them. Bottom line is it works phenomenally well.

  47. #47
    Sr. Administrator Jack's Avatar
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    Re: Which Digital Back for my Contax 645

    I will be happy to demo the technique in Puerto Rico -- it is relatively easy to get great results if you follow a few simple steps.
    Jack
    home: www.getdpi.com

    "Perfection is not attainable. But if we chase perfection, we can catch excellence."

  48. #48
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    Re: Which Digital Back for my Contax 645

    How about an online video tutorial via YouTube?

  49. #49
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    Re: Which Digital Back for my Contax 645

    Wow. Hard to believe. What a great tool to have available.

  50. #50
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    Re: Which Digital Back for my Contax 645

    Quote Originally Posted by tom in mpls View Post
    Wow. Hard to believe. What a great tool to have available.
    Well I for one need some help. I tried three times. First time in auto, and it crashed (wanted to tell on itself to microsoft!)
    next tries perspective and it didnt blend it just stuck the three together
    then went back to auto-same crash

    Maybe is can't handle 28mm?

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