Got my silver copy this afternoon and took few test shots on my way from work. All images below were shot WO with the same post processing (exported to DNG during import, slight cast reduction with CornerFix, post in Photoshop and export to JPG with Adobe Pro profile)
Plan to have a quick bite and take few evening shots to post later on.
Now, so how this lens performs on Sony A7R with Kolari modified sensor stack?
Will post shots taken side by side with Zeiss Biogon 2/35 ZM at infinity later on this evening.
Congrats Jack!! Looks like it performs real well on that body. It will be great to see your comparison... BTW - are those bike spokes purple or is that CA? Guess I haven't been shooting much in conditions which show this.
Biogon vs. Distagon; both images taken at f/8, minimal and identical post processing.
Distagon ZM designed for digital Leica M and most likely with sensor stack in mind clearly shows better results, at least in the corners. In upcoming days I will try to compare them both for cross frame performance to determine faith of Biogon.
Thank you Gary!
Yes, it's CA showing around chrome finish of rims and spokes. I had no time to fix it in post, but defringing slider in Adobe RAW takes care of it in no time.
Great work everyone!!! Congratulations Philippe, Edward, Gary and Jack on the ZM 35/1.4
Jack, excellent comparison with the A7rM. As I mentioned before, I never really found the ZM 35/2 to be that sharp on the corners with my M9, but it may not have been a good copy.
Thank you Charles!
Biogon has indeed rolled off extreme corners regardless of camera body. It's now hardly a match for Distagon, but still, it's half size, weight and price
Thank you Jack for all the A7RM images. Congratulations!
A question: Is it sensor reflections or lens flare in the night images? I see it at a couole of high contrast places.
Jonas,
Thank you. I believe it maybe only flaring. Since the conversion I tried shooting against sun, direct light and didn't encounter any sensor reflections, unlike on stock A7R where flaring was even visible in a viewfinder.
JaKo wrote:
Biogon vs. Distagon; both images taken at f/8, minimal and identical post processing.
Distagon ZM designed for digital Leica M and most likely with sensor stack in mind clearly shows better results, at least in the corners. In upcoming days I will try to compare them both for cross frame performance to determine faith of Biogon.
Thank you Gary!
Yes, it's CA showing around chrome finish of rims and spokes. I had no time to fix it in post, but defringing slider in Adobe RAW takes care of it in no time.
ZM 35/1.4 @f/8 is impressive! Not so convinced with the wide open shots though, sides seem soft. Amount of vignetting WO is also impressive (although easily fixable).
rscheffler wrote:
Leica now makes a close focus helicoid for M lenses, but it's expensive, of course. And naturally it's only going to work in live view with the M240.
Ron, are you talking about this one? or is there another close-focus adapter I haven't heard of?
JaKo wrote:
Biogon vs. Distagon; both images taken at f/8, minimal and identical post processing.
Distagon ZM designed for digital Leica M and most likely with sensor stack in mind clearly shows better results, at least in the corners. In upcoming days I will try to compare them both for cross frame performance to determine faith of Biogon.
Thank you Gary!
Yes, it's CA showing around chrome finish of rims and spokes. I had no time to fix it in post, but defringing slider in Adobe RAW takes care of it in no time.
Interesting that the Biogon appears sharper in the central part of the image versus the Distagon in the comparison. Perhaps at F4/5.6 the Distagon is sharper in the center?
rscheffler wrote:
Leica now makes a close focus helicoid for M lenses, but it's expensive, of course. And naturally it's only going to work in live view with the M240.
dalegaspi wrote:
Ron, are you talking about this one? or is there another close-focus adapter I haven't heard of?
Yes, that's it. Of course it's not exactly the same as the FE-M close focus helicoids that will take a lens from infinity to near focus. Rather, with a regular M lens, it will act as a variable length extension tube and with wider lenses may not be practical. It only works as an infinity to close focus adapter with the 90 macro. But at least it's an option for those using Leica bodies.
Jack, one way to determine the night scene flare is the lens or sensor could be to try the same scene with both the Distagon and Biogon? Maybe Gary can try some with the M240 as well? My initial thought was it's sensor flare since the many green 'dots' are mirror images of the light sources in size/shape.
Taylor Sherman wrote:
I'm pretty certain that's the sensor reflections.
If these are sensor reflections, I am happy to admit that it's nothing like on stock A7R I have beens shooting since December 2013. You may observe similar. http://www.kozera.ca/photos/images/_DSC3170_640.jpg
JaKo wrote:
If these are sensor reflections, I am happy to admit that it's nothing like on stock A7R I have beens shooting since December 2013. You may observe similar. http://www.kozera.ca/photos/images/_DSC3170_640.jpg
Have you tried a baffled adapter to solve your flare issue on the A7r? In the instances where I have observed obvious flare issues, a proper baffled adapter (such as the Rayqual Kindai) has completely solved the issue with adapted lenses on the A7r. If one looks at the rear of the Sony FE lenses, all of the FF versions have built in baffles that mask the image circle to begin with. I have also observed that even in cases with adapted lenses where flare is not obvious, the use of baffled adapters often leads to an increase in contrast since there is actually some degree of flare occurring.