Site Sponsors
Page 1 of 2 1 2 LastLast
Results 1 to 50 of 94

Thread: MF High ISO Image Thread

  1. #1
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    MF High ISO Image Thread

    Something different. Let's see what we are not supposed to be able to do.

    P25 Plus ISO 800 300mm at 5.6

    Shot this back in January. Processed in ACR, not my favorite program
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  2. #2
    Senior Member
    Join Date
    Nov 2007
    Location
    Melbourne, Australia
    Posts
    2,338
    Post Thanks / Like
    Images
    52

    Re: MF High ISO Image Thread

    Nice Guy..you must be on beta blockers - I love the expression of the woman in the background !

  3. #3
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    I know pretty cool look from her. These are models trying to get in the business. Thought we would have some fun this morning
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  4. #4
    Senior Member
    Join Date
    Nov 2007
    Posts
    1,513
    Post Thanks / Like

    Re: MF High ISO Image Thread

    Guy,
    This works nicely as a B/W image for sure. There is obvious noise, but it translates nicely to a grainy look. Hard to tell, but ACR may be adding some halo to the top of her head, unless that is some overhead lighting or something. (Do not think it is a normal sharpening artifact, but more something that ACR tends to impart at times. Drives me nuts, as it is inconsistent, but bothersome to me anyway.)

    Now, if there was a firmware/software way to boost you one more stop....or maybe just make this one cleaner, I would think you would be a pretty happy camper, no?

    LJ

  5. #5
    Senior Member yaya's Avatar
    Join Date
    Dec 2007
    Location
    London, UK
    Posts
    1,168
    Post Thanks / Like
    Images
    38

    Re: MF High ISO Image Thread

    Yair Shahar | Product Manager | Phase One | Mamiya Leaf
    e: [email protected] | m: +44(0)77 8992 8199 | yaya's blog

  6. #6
    Senior Member
    Join Date
    Nov 2007
    Posts
    1,513
    Post Thanks / Like

    Re: MF High ISO Image Thread

    Quote Originally Posted by PeterA View Post
    I love the expression of the woman in the background !
    You know it is a tough crowd when folks are squinting through the bifocal to look for "flaws"

    LJ

  7. #7
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    LOl here is a color one. I did put some sharpening on the first one. This one more out of the can. Yes there is noise but it really does not bother me much. It's more luminance than color which bugs me is color noise. Besides i hate ACR this is from C1

    ISO 800 and the 300mm Mamiya at 5.6 .This girl has a identical twin and these girls cleaned up with the agents. They loved them. Little different shot selection
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  8. #8
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    Same shot but went after the color noise in C1. Cleaned up pretty good.

    Yair nice noise on that one, Very clean
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  9. #9
    Senior Member yaya's Avatar
    Join Date
    Dec 2007
    Location
    London, UK
    Posts
    1,168
    Post Thanks / Like
    Images
    38

    Re: MF High ISO Image Thread

    Quote Originally Posted by Guy Mancuso View Post
    Yair nice noise on that one, Very clean
    Thanks, for 4,800 iso I think it's not bad at all!
    Yair Shahar | Product Manager | Phase One | Mamiya Leaf
    e: [email protected] | m: +44(0)77 8992 8199 | yaya's blog

  10. #10
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    It's great at that speed.

    Honestly I think there is too much whining about high ISO and MF. Certainly better than it can't be better than base ISO talk
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  11. #11
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    Another at ISO 800 which is the maximum rated for my back . Seriously if your really close to dead on exposures than your success rate is really good. I think a lot of times things get underexposed and folks are trying to push to far. This is all under tungsten which is not easy light
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  12. #12
    Senior Member Steve Hendrix's Avatar
    Join Date
    Nov 2007
    Posts
    420
    Post Thanks / Like
    Images
    4

    Re: MF High ISO Image Thread

    Here is another of my sample cat pics (this is Easter), shot on a Phase One P30+/Phase One camera and 28mm lens at 1/30th second, f4.5 and 800 ISO. Includes original, final and 100% crop. All the adjustments of the final were completed in Capture One, which included push/pulling exposure, saturation, adjusting curves, rotation, distortion, CA, and *negative* vignetting. I think it holds up quite well for an ISO 800 shot put through the wringer.

    Selectively pulled red reflections from the pillow/blanket out of his grey coat hairs in the Color Editor, took about 30 seconds. Notice the white door color balance is not much different from the orginal to the final, yet Easter's fur coat has changed dramatically. Let's see you do this in Leaf Capture, Phocus, or Exposure!

    Snap!


    Steve Hendrix
    Phase One

  13. #13
    Member
    Join Date
    May 2008
    Posts
    84
    Post Thanks / Like

    Re: MF High ISO Image Thread

    Hey Guy,

    For an additional laugh why don't we see which MFDB makers most recent products
    and software combo can claim champion status with exposure times of, say, over twenty
    seconds.
    We all know Phase reined supreme with products up to the P45+ but I would be
    curious to know who is sitting at the top of the heap now, knowing that there are some
    chip changes in most recent products

    Mark

  14. #14
    Member
    Join Date
    May 2008
    Posts
    84
    Post Thanks / Like

    Re: MF High ISO Image Thread

    Let's see you do this in Leaf Capture, Phocus, or Exposure!

    Hey Steve,
    Fair enough but maybe the above mentioned brands wouldn't have started
    with a blue cat :>))

    Mark

  15. #15
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    Phase still does 1 hour for the P45 plus and P30 Plus. The P25 plus I have to retest . I had a issue but was firmware related ( not having a new version) but my thought is at least 30 minutes. I do have to test it again and maybe Steve has more on my old chip. LOL Still love this 22mpx sensor. Than the P65 Plus does a minute. Than for Hassy i think 30 seconds but Dave can tell us for sure , maybe longer. Leaf and Sinar not sure over a minute . Dalsa does not do well over a minute in general and the Kodak sensors are better at the long stuff. Now if my numbers are wrong or my thinking please advice the correct data gentleman. Yair ( Leaf) David ( Hassy) Steve, Chris and Doug ( Phase folks ) and also Chris Snipes knows Phase. Did I leave anyone out . Edwin handles Sinar
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  16. #16
    Senior Member Steve Hendrix's Avatar
    Join Date
    Nov 2007
    Posts
    420
    Post Thanks / Like
    Images
    4

    Re: MF High ISO Image Thread

    Quote Originally Posted by mtomalty View Post
    Let's see you do this in Leaf Capture, Phocus, or Exposure!

    Hey Steve,
    Fair enough but maybe the above mentioned brands wouldn't have started
    with a blue cat :>))

    Mark

    No, probably purple.

    To the eye, Easter's coat appears a mix of black, white, grey, etc. But in almost any light (daylight, tungsten, you name it) regardless of whether the scene is color balanced, as a digital capture, it picks up all sorts of odd colorations. And this was a mix, tungsten and daylight, and was captured with Auto White Balance, so there is a lean towards blue. However, even after color balancing, Easter's coat was reflecting and absorbing all kinds of colors, it was certainly not as neutral as it appears to the naked eye. I find this common with all of my cats with gray-ish coats.

    I've found this the case with H3D shots, Canon shots, and now Phase One (remember, I've shot with all of them). Some things have to be tamed in post. It's nice to have the tools to do it.


    Steve Hendrix
    Phase One
    Last edited by Steve Hendrix; 10th March 2009 at 09:58.

  17. #17
    Howard Cubell
    Guest

    Re: MF High ISO Image Thread

    Quote Originally Posted by Steve Hendrix/Phase One View Post
    No, probably purple.

    To the eye, Easter's coat appears a mix of black, white, grey, etc. But in almost any light (daylight, tungsten, you name it) regardless of whether the scene is color balanced, as a digital capture, it picks up all sorts of odd colorations. And this was a mix, tungsten and daylight, and was captured with Auto White Balance, so there is a lean towards blue. However, even after color balancing, Easter's coat was reflecting and absorbing all kinds of colors, it was certainly not as neutral as it appears to the naked eye. I find this common with all of my cats with gray-ish coats.

    I've found this the case with H3D shots, Canon shots, and now Phase One (remember, I've shot with all of them). Some things have to be tamed in post. It's nice to have the tools to do it.


    Steve Hendrix
    Phase One
    Actually, the cat looks to me like he has been selectively converted to monochrome to neutralize the color cast.

  18. #18
    Senior Member Dave Gallagher's Avatar
    Join Date
    Dec 2008
    Location
    Atlanta
    Posts
    1,205
    Post Thanks / Like

    Re: MF High ISO Image Thread

    Steve,

    I like how it pulled the color out of the black bookcase as well. This is a great example of a real world application of the color editor. But Steve........ does the model always have to be a "cuddly little kitty"? : )

  19. #19
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    Agree Dave . I would like something a little taller . LOL
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  20. #20
    Subscriber Member KurtKamka's Avatar
    Join Date
    Nov 2007
    Posts
    1,232
    Post Thanks / Like
    Images
    26

    Re: MF High ISO Image Thread

    Great example demonstrating how much I haven't mastered in C1 ... I better sign up for one of those tutorials.

  21. #21
    Senior Member Steve Hendrix's Avatar
    Join Date
    Nov 2007
    Posts
    420
    Post Thanks / Like
    Images
    4

    Re: MF High ISO Image Thread

    Quote Originally Posted by Howard Cubell View Post
    Actually, the cat looks to me like he has been selectively converted to monochrome to neutralize the color cast.
    I know and it's quite amazing, I can't even recall exactly step for step what I did.

    But it was done in the C1 Pro 4.6.2 Color Editor and took about 30 seconds like I said. Primarily what occurred was an actual neutral white balance on the door, as seen here, but you can see that his coat still doesn't resemble the neutrality I'm looking for. In both the "color balanced" shot and the final, the white door is reading neutral.

    The further neutrality for the final was accomplished by selecting various odd colored fur patches and selectively desaturating them with the Color Editor. It was easy and quick.

    I think before C1 Pro 4, the Color Editor was promising, but difficult to use. With C1 Pro V4, it is now much easier and faster, and it's embedded in C1 Pro instead of being a separate application as it was in C1 Pro 3.


    Steve Hendrix
    Phase One


    Steve Hendrix
    Phase One

  22. #22
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    Yes the color editor is a great tool
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  23. #23
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    Quote Originally Posted by KurtKamka View Post
    Great example demonstrating how much I haven't mastered in C1 ... I better sign up for one of those tutorials.
    Or come to our workshops. Okay selfish pitch there. LOL

    But seriously Doug is great at explaining how this all works and it is cool as heck. Just don't tell him, he may not get his head through the door. LOL
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  24. #24
    Senior Member yaya's Avatar
    Join Date
    Dec 2007
    Location
    London, UK
    Posts
    1,168
    Post Thanks / Like
    Images
    38

    Re: MF High ISO Image Thread

    Quote Originally Posted by Steve Hendrix/Phase One View Post
    I've found this the case with H3D shots, Canon shots, and now Phase One (remember, I've shot with all of them). Some things have to be tamed in post. It's nice to have the tools to do it.
    Steve Hendrix
    Phase One
    Steve I see that you have unintentionally omitted Leaf from that list Is that because you've found our cameras to be more pet friendly?
    Yair Shahar | Product Manager | Phase One | Mamiya Leaf
    e: [email protected] | m: +44(0)77 8992 8199 | yaya's blog

  25. #25
    Subscriber Member KurtKamka's Avatar
    Join Date
    Nov 2007
    Posts
    1,232
    Post Thanks / Like
    Images
    26

    Re: MF High ISO Image Thread

    There's no harm in selfish pitches ...

    You need to work out a deal with Capture Integration such that they provide a $___ certificate to a getdpi workshop with a purchase of a digital back or gear over $___.

  26. #26
    Senior Member Steve Hendrix's Avatar
    Join Date
    Nov 2007
    Posts
    420
    Post Thanks / Like
    Images
    4

    Re: MF High ISO Image Thread

    Quote Originally Posted by yaya View Post
    Steve I see that you have unintentionally omitted Leaf from that list Is that because you've found our cameras to be more pet friendly?
    Yair

    No unintention at all.

    This is a high ISO thread..........


    Steve Hendrix
    Phase One

  27. #27
    Member
    Join Date
    May 2008
    Posts
    84
    Post Thanks / Like

    Re: MF High ISO Image Thread

    Quote Originally Posted by Steve Hendrix/Phase One View Post
    Yair
    No unintention at all.
    This is a high ISO thread..........
    Steve Hendrix
    Phase One
    Phase 1
    Leaf 0

    Sorry Yair, but all judges rule that Steve scored a point on that play :>))

  28. #28
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    Quote Originally Posted by KurtKamka View Post
    There's no harm in selfish pitches ...

    You need to work out a deal with Capture Integration such that they provide a $___ certificate to a getdpi workshop with a purchase of a digital back or gear over $___.
    Agree where is Mr Gallagher when you need him. LOL

    I think this could be arranged. LOL
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  29. #29
    Senior Member yaya's Avatar
    Join Date
    Dec 2007
    Location
    London, UK
    Posts
    1,168
    Post Thanks / Like
    Images
    38

    Re: MF High ISO Image Thread

    Quote Originally Posted by mtomalty View Post
    Phase 1
    Leaf 0

    Sorry Yair, but all judges rule that Steve scored a point on that play :>))
    800 Vs 4,800 mate...I think the rules are being re-written with the AFi-II 10 and Aptus-II 10...
    Yair Shahar | Product Manager | Phase One | Mamiya Leaf
    e: [email protected] | m: +44(0)77 8992 8199 | yaya's blog

  30. #30
    Senior Member
    Join Date
    Dec 2007
    Location
    Reykjavik, Iceland
    Posts
    2,310
    Post Thanks / Like
    Images
    9

    Re: MF High ISO Image Thread

    Ok, these should not be regarded as "quality" files, as they are not something I would use professionally. I was out photographing in the full moon, and I brought along the 110/2 and my Sinar 54LV. The maximum exposure time is 32 seconds and the maximum ISO is 400 (though it is actually 200 in real terms). These were exposed at f/2, ISO 400 (200) for 32 seconds and then pushed 2.5 stops in Capture One, so they are effectively ISO 2500 (1000 actual).





    They are grainy and have some weird pixel effects, but they look ok at small sizes. I have a feeling they would be sharp if I had been able to focus or use an aperture greater than f/2...I had to just leave it at infinity because it was too dark to see.

    But anyway, I think they are better than I thought they would be, but my guess is that they are suffering more from the exposure time and then ISO. At ISO 400 and a proper exposure, the results are not bad.

    I am not a manufacturer or a seller, so this is just what I can show you...I am not sure the black references are correct ( why can't it just make a single damn file?), but I did tell it to do one before one of the first long exposures. The images were converted to DNG in eXposure. I used Capture One to process the negs, because frankly, it is a much better program.

    P.S. The D3 is a vastly better tool for this type of work. See here: http://www.stuartrichardson.com/ligh...ch-3rd-aurora/


    Edit: Actually, the weird picture artifacts at 100% are from capture one. They are not there in eXposure, so I will have to eat my words. There does not seem to be any noise reduction program though, which is a drag.
    Last edited by Stuart Richardson; 10th March 2009 at 12:10.
    My photos are here: http://www.stuartrichardson.com and more recent work here: http://stuartrichardson.tumblr.com/ Please have a look at my book!
    My lab is here: http://www.customphotolab.is and on facebook

  31. #31
    Member
    Join Date
    May 2008
    Posts
    84
    Post Thanks / Like

    Re: MF High ISO Image Thread

    Thanks for the images and background details with the shoot,Stuart.
    BTW, your linked aurora images are spectacular.

    Without doubt,something like the D3 will excel in extreme circumstances like you
    show.
    For a lot of the landscape imagery I shoot it very often doesn't take extreme night
    conditions for exposure/aperture considerations to extend beyond 30 seconds.
    Overcast or rainy weather under a forest canopy where an f-stop of f11-16 is
    required in tandem with a polarizer can easily hit more than 32 seconds,even at
    mid day so how DB's have traditionally responded in these conditions have kept
    me away as a purchaser until now.
    With price drops and system deals happening it is now a more reasonable option
    for me to consider.
    Knowing that all of the newest products from Leaf,Blad, and Phase use a
    Dalsa sensor my curiosity is piqued as to whether one brand has been more successfull,to date, with getting a handle on longer exposures.

    Mark
    www.marktomalty.com

  32. #32
    Member
    Join Date
    May 2008
    Posts
    84
    Post Thanks / Like

    Re: MF High ISO Image Thread

    Quote Originally Posted by yaya View Post
    800 Vs 4,800 mate...I think the rules are being re-written with the AFi-II 10 and Aptus-II 10...
    Where might one find these rules,mate....

    Mark
    www.marktomalty.com

  33. #33
    Senior Member Steve Hendrix's Avatar
    Join Date
    Nov 2007
    Posts
    420
    Post Thanks / Like
    Images
    4

    Re: MF High ISO Image Thread

    Quote Originally Posted by mtomalty View Post
    Knowing that all of the newest products from Leaf,Blad, and Phase use a
    Dalsa sensor my curiosity is piqued as to whether one brand has been more successfull,to date, with getting a handle on longer exposures.

    Mark
    www.marktomalty.com

    Hasselblad does not use Dalsa sensors.

    Regarding longer exposures it is safe to say, and completely without any bias on my part, that Phase One is the clear winner.


    Steve Hendrix
    Phase One

  34. #34
    Member
    Join Date
    May 2008
    Posts
    84
    Post Thanks / Like

    Re: MF High ISO Image Thread

    [QUOTE=Steve Hendrix/Phase One;82797]Hasselblad does not use Dalsa sensors.}

    My mistake. For some reason i mistakenly assumed that the H3Dll-50
    used a Dalso sensor.



    [QUOTE]Regarding longer exposures it is safe to say, and completely without any bias on my part, that Phase One is the clear winner.[QUOTE]

    32s with a Dalsa or am I assuming,incorrectly, again?


    Mark

  35. #35
    Super Duper
    Senior Member
    carstenw's Avatar
    Join Date
    Nov 2007
    Location
    Berlin, Germany
    Posts
    2,530
    Post Thanks / Like

    Re: MF High ISO Image Thread

    Close. 1 hour with a Kodak

    Phase One and Hasselblad use Kodak sensors, although I don't know about the latest Hasselblad backs. The P65+ is the exception, and uses a Dalsa, but cannot handle 1 hour exposures. I don't quite recall but I think it does 1 minute. Leaf and Sinar use Dalsa.
    Carsten - Website

  36. #36
    Senior Member
    Join Date
    Dec 2007
    Location
    Reykjavik, Iceland
    Posts
    2,310
    Post Thanks / Like
    Images
    9

    Re: MF High ISO Image Thread

    [QUOTE=mtomalty;82801][QUOTE=Steve Hendrix/Phase One;82797]Hasselblad does not use Dalsa sensors.}

    My mistake. For some reason i mistakenly assumed that the H3Dll-50
    used a Dalso sensor.



    [QUOTE]Regarding longer exposures it is safe to say, and completely without any bias on my part, that Phase One is the clear winner.

    32s with a Dalsa or am I assuming,incorrectly, again?


    Mark
    My back is a Sinar, which is a 22mp Dalsa sensor. The camera (Hy6) limits it to 32 seconds, which I believe is the maximum for the back as well.
    My photos are here: http://www.stuartrichardson.com and more recent work here: http://stuartrichardson.tumblr.com/ Please have a look at my book!
    My lab is here: http://www.customphotolab.is and on facebook

  37. #37
    Senior Member Steve Hendrix's Avatar
    Join Date
    Nov 2007
    Posts
    420
    Post Thanks / Like
    Images
    4

    Re: MF High ISO Image Thread

    Quote Originally Posted by carstenw View Post
    Close. 1 hour with a Kodak

    Phase One and Hasselblad use Kodak sensors, although I don't know about the latest Hasselblad backs. The P65+ is the exception, and uses a Dalsa, but cannot handle 1 hour exposures. I don't quite recall but I think it does 1 minute. Leaf and Sinar use Dalsa.
    Yes, this includes all current Hasselblad backs.

    And you are correct, long exposure is not the strength of the Dalsa chip, although this doesn not mean you cannot obtain high quality long exposures. And it is not a matter of the chip itself, anyway. Both Hasselblad and Phase One products use the same chip in many models, but the max Hasselblad exposure is 32 seconds, where our max is 60 minutes. So clearly we do something with the chip.

    You can take longer than 1 minute exposures with the P65+, I would say that the results don't live up to the previous P+ backs yet. But I wouldn't be surprised if we eventually have longer than 1 minute optimal exposures with the P65+.


    Steve Hendrix
    Phase One

  38. #38
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    Steve I can deal with a minute just send one over. I wish
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  39. #39
    Howard Cubell
    Guest

    Re: MF High ISO Image Thread

    Quote Originally Posted by Steve Hendrix/Phase One View Post
    Yes, this includes all current Hasselblad backs.
    You can take longer than 1 minute exposures with the P65+, I would say that the results don't live up to the previous P+ backs yet. But I wouldn't be surprised if we eventually have longer than 1 minute optimal exposures with the P65+.
    Steve Hendrix
    Phase One
    Steve:
    I assume that's possible as part of the new "Promise Plus" Technology in the P65?

  40. #40
    Senior Member kdphotography's Avatar
    Join Date
    Aug 2008
    Location
    Carmel/Tucson
    Posts
    2,355
    Post Thanks / Like

    Re: MF High ISO Image Thread

    I find that low light images with long exposures are the ones that really test the quality of the back---not the higher key images. And I've had experience with both P30 and P45+ MFDBs making fantastic long exposures in low light. The P65+ with its Dalsa sensor is admittedly more limited than its other Phase brethern.

    So from our the CI in Carmel excursion, I thought I'd see how the P65+ faired ---shooting the SF GG Bridge, at night, with an aperture of f/16 Yup---that's right. Phase 645AF, Mamiya 75-150, P65+, ISO 400;30 seconds at f/16

    C1Pro to JPEG. No real post processing. Resized and converted over to sRGB. Not too bad----I'd like to see how the Sensor+ technology adds to the equation...
    Last edited by kdphotography; 2nd March 2010 at 20:25.

  41. #41
    Senior Member
    Join Date
    Dec 2007
    Location
    Reykjavik, Iceland
    Posts
    2,310
    Post Thanks / Like
    Images
    9

    Re: MF High ISO Image Thread

    The detail in that shot looks excellent, but there is rather blatant banding in the sky and water, no?
    My photos are here: http://www.stuartrichardson.com and more recent work here: http://stuartrichardson.tumblr.com/ Please have a look at my book!
    My lab is here: http://www.customphotolab.is and on facebook

  42. #42
    Member
    Join Date
    May 2008
    Posts
    84
    Post Thanks / Like

    Re: MF High ISO Image Thread

    Pretty scary looking at the image in separate R,G,and B channels, as well.

    Did you deliberately delete the camera capture info or is CS4 not able to extract
    file info from the P65+ Raws ?

    Mark

  43. #43
    Senior Member
    Join Date
    Nov 2008
    Location
    UK
    Posts
    561
    Post Thanks / Like

    Re: MF High ISO Image Thread

    I'm on my travels for a few days so won't be able to contribute until Monday.

    I have a great test shot in mind lined up in low light... None of this namby pamby feline stuff at 50 billion Lux. ;-)

    Nice shot there Stuart.

    David

  44. #44
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    Wanted to add one shot at ISO 800 with a 80mm at F4 but I had to push this a extra stop in C1 so effective ISO is 1600 with strong blue channel which is the worst for noise and still held on very well. In C1 luminance 0 and color noise 40. Not a lot . Again the P25 plus back
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  45. #45
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    Okay copied the settings from the previous one and applied the 1 stop push . Now when you get the deep shadows you start seeing the noise. This was shot at 2.8 with a 80mm . I guess these lenses can't do wide open.
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  46. #46
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    Any more color noise applied than I will start the smearing some. So you can get pretty high but you have to be careful and in this case the light was very low and went under a stop. Obviously no in Nikon territory but very respectable for a older back with 9 microns. I think the 6.8 and 6 microns sensors maybe better at the higher noise levels. The big trick is watching your backgrounds and when they get deep in the shadows than things start picking up with noise
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  47. #47
    Senior Member
    Join Date
    Dec 2007
    Location
    Reykjavik, Iceland
    Posts
    2,310
    Post Thanks / Like
    Images
    9

    Re: MF High ISO Image Thread

    Looks good Guy. I agree about noise reduction -- color noise reduction does wonders, but I think luminance noise reduction almost always diminishes the quality of the image (unless you want smooth, detail-free photos). Also, I find that sharpening can be problematic with these high exposures...any sharpening just accentuates the noise without doing that much to the detail....at least capture sharpening anyway. Sharpening at the output size still works.
    My photos are here: http://www.stuartrichardson.com and more recent work here: http://stuartrichardson.tumblr.com/ Please have a look at my book!
    My lab is here: http://www.customphotolab.is and on facebook

  48. #48
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    Really ran into a wall this week . Did a corporate gig and the lighting was just flat out low. I really pushed my back . I shot these on a monopod which I HIGHLY RECOMMEND . Shot with the 150 mm D lens at ISO 800 and 2.8 wide as she can go. BTW little tired how MF lenses CAN'T do wide open. Sorry that is some mythical idiot that can't shoot his way out of a paper bag that started this stupid logic. I honestly don't know where it came from but let them keep thinking that one out when we do it for real. Sorry i just keep breaking these limitations on a daily basis that some actually think exist. Now I am picking up some noise and especially the blue lighting since noise is the worst in this area but still very acceptable. Now ISO 1600 would have been handy here no doubt
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  49. #49
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    I really should have started with this image since this was the first speaker and in his infinite wisdom told the lighting guy to bring the lights to 25 percent and after he left the stage I made the lighting guy go back to 50 percent the top image. This one ISO 2.8 and it was a stop under so i had to pull the rabbit out of the hat to get a effective 1600 or more. Now this is in the dumpster as far as i was concerned shooting it and I shot some like this than pulled out the ultimate no no a Metz flash and covered my preverbal butt with a couple shots I knew would cut it. I heard about it later, trust me. But he put me out on a very thin tree limb and he was the CEO so I had to break the rules and get the shot but looking at it now it is not too bad and acceptable. To me I am over the limit but for there needs it works. I could probably play a little more in C1 and maybe bring it into D-Fine or Noise Ninja but that is extra work and when processing in a hotel on a laptop not something you really want to do
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

  50. #50
    Administrator, Instructor Guy Mancuso's Avatar
    Join Date
    Oct 2007
    Location
    Arizona
    Posts
    23,623
    Post Thanks / Like
    Images
    2555

    Re: MF High ISO Image Thread

    As you can see pushing it to 1600 or more it really might have been more at a 100 percent crop you can obviously see the noise
    Photography is all about experimentation and without it you will never learn art.

    www.guymancusophotography.com

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •