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Thread: Sony a900 WA Lens Option Advise Please :-)

  1. #51
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    Re: Sony a900 WA Lens Option Advise Please :-)

    Quote Originally Posted by Steen View Post
    As far as I know the Minolta Rokkor 58 1.2 has the old manual focus Minolta MC mount, not the Minolta A mount (now Sony Alpha mount).
    So I think you would need to have the lens mount converted.
    Yes, you need to convert the lens.I have seen ones converted to sony a-mount on ebay before.
    I see Eoin has one.
    The conversion was very simple for canon mount, I did it for both my copies.
    Should be pretty easy to convert to a-mount.
    If not the Rokkor, maybe some other fast 50 like sony 50.

  2. #52
    Senior Member Eoin's Avatar
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    Re: Sony a900 WA Lens Option Advise Please :-)

    Quote Originally Posted by wayne_s View Post
    Eoin,
    Do you think the 135 is sharper than the 85?
    How does the za 85 compare to the 85Lmk2,especially wide open?
    Absolute sharpness is one element, micro contrast is another factor, I don't know how to decipher one from the other but in terms of what I consider image sharpness, yes the 135 is sharper (my copy anyway) than the ZA 85. I'm not saying my 85 is not sharp, on the contrary it's very sharp. But the 135 has a depth and quality in the image (micro contrast ?) that is somewhat missing from the 85.

    I never had the 85L MkII version but I believe they were the same except for coatings and a change in the focus motor/gearing. The 85L suffered from CA and purple fringing very easily wide open in many situations if allowed. Yet closed down it managed to perform well. There was a certain softness / glow to the image yet it was sharp and the colours and bokeh were what I'd always describe as "pastel" in look. It was a lens I liked to use for head & shoulder portraits on a 1.25x crop body (1D II) shot between f:/2.2 & f:/5.6

    Step forward to Sony full frame and Zeiss 85, the colours are much stronger yet don't have the depth of the ZA135. I guess this is as much to do with the sony sensor then the lens. CA wide open is better controlled once you expose correctly, get it wrong though and it's a mess also. Lateral CA in high contrast areas is present till f:/4 but not a problem in general shooting. Overall sharpness is better than the 85L but it lacks the "Glow/Softness" magic the 85L had. Without a doubt the ZA 85 is better corrected optically and produces stunning images, but the magic within the imperfections of the 85L is not there with the ZA 85 IMO.

    Yet this is all subjective, I've often thought of getting a Canon body just to use this lens again, but with the Sony and 135 I have another completely different look which I've loved from the first image I saw on screen.
    A7II, FE 35, 55 C/Y 18, 28, 85, 100, 28-85

  3. #53
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    Re: Sony a900 WA Lens Option Advise Please :-)

    Quote Originally Posted by KETCH ROSSI View Post
    Thanks again Eoin, the 135 will be definitely in my Bag!!



    Thanks Eric, great Link and comparison there.
    IMO the ZA 135/1.8 is a no brainer choice ... one of the main reasons to own a Sony.

    The ZA 24-70/2.8 can produce some delicious Bokeh @ 70mm up close with nice 3D effect (depending on subject to background distance) ... but is not a lens I'd select for precision WA work due to some moustache distortion at 24ish focal lengths which cannot be fixed in post.

    The ZA 85/1.4 is not an APO lens and sharpness can be affected by CA even when somewhat corrected in post. This CA is fickle as it can appear when not expected, and not appear when you would. I really hated the CA produced by the ZF 100/2 Macro and was disappointed to see it in this lens.

    However, compared to the Canon 85/1.2 which also can suffer from CA (I used both versions), the ZA 85/1.4 more consistently produces a desirable 3D effect. In fact, it produces this effect more frequently than the ZA 135/1.8 does. I think it is due to the sensor size and relative focus fall off of the ZA 85/1.4 ... for this 3D reason I put up with the occasional CA.

    If you are looking for ultimate IQ, skip the SA 50/1.4. It is roughly the same IQ as it's Canon and Nikon counterparts ... and no match for something like a Leica R 50/1.4 or the legendary CZ 55/1.2.

    One of my favorite portrait lenses on the A900 is the Zeiss 110/2FE via an adapter. While it is stop down metering it isn't much of an issue because I rarely stop it down except when in tight for head shots ... which, BTW this lens focuses quite close. I also use the superb Zeiss 250/4FE on the A900 which performs like the 135/1.8 except it compacts up the perspective even more.

    Lots of fun to be had with the Sony when it come to optics.

    -Marc

  4. #54
    Senior Member KETCH ROSSI's Avatar
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    Re: Sony a900 WA Lens Option Advise Please :-)

    Thanks Steen for the heads up, then no go.

    Ill give the Sony 20 & CZ 16-35, and Sony 50 1.4 and CZ 24-70 a try and see which one I like better in their focal.

  5. #55
    Senior Member douglasf13's Avatar
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    Re: Sony a900 WA Lens Option Advise Please :-)

    For those interested, here is a really good Zeiss paper about field curvature and MTF. Also, page 32 gives some insight in the CA like in the ZA 85

    http://www.zeiss.com/C12567A8003B8B6F/EmbedTitelIntern/CLN_30_MTF_en/$File/CLN_MTF_Kurven_EN.pdf

  6. #56
    Senior Member KETCH ROSSI's Avatar
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    Re: Sony a900 WA Lens Option Advise Please :-)

    Yes Douglas, stabled across that PDF some time ago when checking out the ZE for canon, good reading.

  7. #57
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    Re: Sony a900 WA Lens Option Advise Please :-)

    What about the ZS 25/2.8 with a chipped adapter? This is a lens I am thinking about on an A850.

  8. #58
    Senior Member KETCH ROSSI's Avatar
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    Re: Sony a900 WA Lens Option Advise Please :-)

    No adapters for me, but the ZS 25 it is a good lens as well.

    Sony lenses only for the Alpha, or CZ for sony off course.

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    Re: Sony a900 WA Lens Option Advise Please :-)

    Quote Originally Posted by Eoin View Post
    Absolute sharpness is one element, micro contrast is another factor, I don't know how to decipher one from the other but in terms of what I consider image sharpness, yes the 135 is sharper (my copy anyway) than the ZA 85. I'm not saying my 85 is not sharp, on the contrary it's very sharp. But the 135 has a depth and quality in the image (micro contrast ?) that is somewhat missing from the 85.

    I never had the 85L MkII version but I believe they were the same except for coatings and a change in the focus motor/gearing. The 85L suffered from CA and purple fringing very easily wide open in many situations if allowed. Yet closed down it managed to perform well. There was a certain softness / glow to the image yet it was sharp and the colours and bokeh were what I'd always describe as "pastel" in look. It was a lens I liked to use for head & shoulder portraits on a 1.25x crop body (1D II) shot between f:/2.2 & f:/5.6

    Step forward to Sony full frame and Zeiss 85, the colours are much stronger yet don't have the depth of the ZA135. I guess this is as much to do with the sony sensor then the lens. CA wide open is better controlled once you expose correctly, get it wrong though and it's a mess also. Lateral CA in high contrast areas is present till f:/4 but not a problem in general shooting. Overall sharpness is better than the 85L but it lacks the "Glow/Softness" magic the 85L had. Without a doubt the ZA 85 is better corrected optically and produces stunning images, but the magic within the imperfections of the 85L is not there with the ZA 85 IMO.

    Yet this is all subjective, I've often thought of getting a Canon body just to use this lens again, but with the Sony and 135 I have another completely different look which I've loved from the first image I saw on screen.
    Thanks Eoin very much for sharing your insight on these lenses. I have been wanting a Zeiss 85mm lens to go along with my 85L since I enjoy the better color and microcontast of zeiss lenses, especially for outside portraits. Ever since I converted my ZA 135 to canon mount for my 1ds3 I have thought about getting the ZA 85. I recently got the contax 100/2 planar and still need to evaluate it more but it hasn't satisfied me enough to not want to try the ZA 85 or maybe the contax N 85.
    As one of the few Sony shooters I know shooting the Minolta Rokkor 58 1.2 on the A900 I am really wanting to know how you like the lens and if you love it as much as alot of us who shoot it on Canon FF cameras? I don't understand why Sony hasn't come out with an updated version of this lens design which is one of the best Minolta lens designs period. If Sony did that they would have an incredible portrait prime trio and I would definitely buy an A900 then.

  10. #60
    Senior Member Eoin's Avatar
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    Re: Sony a900 WA Lens Option Advise Please :-)

    Wayne, I picked up a minty 58 1.2 pretty cheap, I put a chipped mount on it and to be honest I haven't used it much. My eyesight isn't so good and even with the M focus screen and focus confirmation it's a PIA for me to use stopped down more than f:/4.

    But from what I've seen from it, yes it's impressive and very good at f:/1.2 which surprised me. However I'm blind & lazy and tend to use the ZA 85 instead of the rokkor for most things around this focal length.

    I will get around to using it when I get time, it does have something special to offer in the right situation.
    A7II, FE 35, 55 C/Y 18, 28, 85, 100, 28-85

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    Re: Sony a900 WA Lens Option Advise Please :-)

    When I can I use liveview to help me get sharp focus with all my MF lenses especially in low light. I hope sony puts liveview in its next FF camera.
    The Rokkor 58's killer combination of great sharpness wideopen and smooth bokeh reminds of the za 135.

  12. #62
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    Re: Sony a900 WA Lens Option Advise Please :-)

    Quote Originally Posted by wayne_s View Post
    When I can I use liveview to help me get sharp focus with all my MF lenses especially in low light. I hope sony puts liveview in its next FF camera.
    The Rokkor 58's killer combination of great sharpness wideopen and smooth bokeh reminds of the za 135.
    Damn you...you just made me keep my 58 1.2 AND get in the market for a new camera with liveview.

    Focusing that thing, even with focus confirmation, is near impossible. But your idea seems to have a lot of promise.

    Greg

  13. #63
    Senior Member KETCH ROSSI's Avatar
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    Re: Sony a900 WA Lens Option Advise Please :-)

    Okay after this last few days, I had to play with the camera and all CA lenses, my absolute favorite is the 135, spectacular lens, second to that is the 85, but the 24-70 did not produce such a bad images as some samples shown in reviews were the Bokeh of this lens at the long end (70) brings double edged out of focus detail, the 16-35 is to my opinion much better built then the 24-70, just by the simple fact that it has a IF system and that to me is huge as I don't like lenses that extend during zooming, for those very few times when I use a zoom, as I do shoot 90% of the time with Prime, both in Cinema and in Photography.

    Unfortunately because I have not found a solution to an other large need, of shooting up to 1/8000 with synchronized flash for HSS, I have to pass on the move to the Sony, and go back to Canon, hopefully their new 1D IV will come out free of any Focus issues

    I was going to upload the pictures, but since I will not come to use the camera for the lack of Sync possibility for HSS in Radio wireless triggering system such as that offered by the TT1/TT5 combination on Canon. I found no need to do the extra work, I must however say that the images of the a900 look better then any other system I used, right off the camera, and yes any other RAW image can be tricked to match and better the SOny IQ, but it is certainly nice to have a camera maker that brings such a great IQ from the start.

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    Re: Sony a900 WA Lens Option Advise Please :-)

    Well, best of luck to you. Please come back after you've had some time with the new gear and post some pics and details of the new system.
    α900+VG|F20|2xF58|16-35,24-70,135Z|STF|70-400G|50,85 1.4|16,20,28,100M,80-200APO f/2.8|28-135|500f/8|1x-3xMacro|2xMFC-1000|Tiltall+RRS, Bellows, etc.

  15. #65
    Senior Member KETCH ROSSI's Avatar
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    Re: Sony a900 WA Lens Option Advise Please :-)

    Will do, no matter the gear, I love this place. No matter which corner of

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