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naturephoto1
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Re: A thinner sensor stack may be possible after all!


charles.K wrote:
Hi Charlie,

I don\'t think there is an argument regarding M bodies being the better platform for M mount lenses. As I mentioned before the M9 had many vignetting and colour cast issues before the later FW updates. These corrections that must done with M mount WA\'s, either by in camera corrections or external software.

From what I observe, and I really did not expect the 28 Cron to perform as well, so the results are excellent IMO. With the A7rM having the 36MP and increased DR/higher ISO, this is great for those looking for landscape/seascapes.

The question of ergonomics is a personal choice. Having moved my M mount platform to Sony, I would not revert back unless Leica had a similar offering with a RF. Then of course there is a cost factor.

From what I have seen, the results are great with the \"thin filter modification\". For working with UWA\'s the Lr work flow will need to adapt some corrections, but this just takes a small amount of effort to set it up to begin and should be no real issue.

Hi Rich,

The corrections in Lr 5.7 mainly deal with geometric corrections for the M lenses rather colour cast and vignetting. I think that Adobe did not want to add another correction to the existing M9/M240 in-camera corrections.


Hi Charles,

When I used LR5.7 for my M WATE I found that as I applied more it lessened vignetting (light loss in the corners) as in scenes with blue sky and snow as well as geometric correction.

JaKo wrote:
Managed to take few shots this afternoon on a way home (pardon the lifeless colours - it just stopped raining in Vancouver) and comparing them to pre-modded version there is no question that some legacy (designed for film plane it is) lenses will benefit in various degrees from KolariVision thin sensor stack mod. The mod will not make all lenses perfect, but the improvement is huge, IMO.

Let\'s take Zeiss Biogon ZM 2/35 for example. On A7/x extreme corners clearly suffered from smearing and the outer zone was showing transition to gradual softness. On modded body, although still not perfect, (and not perfect either in extreme corners from what I saw in dozens of full res images taken with M9/M) Biogon looks like a different lens.

Leica Elmarit-R 28 with no surprise doesn\'t show any dramatic improvement on modded A7R, but I am sure it was expected. Said that, I have to check my adapter as far left side is a bit off IMO.



All images below were shot at f/8






Full version
Full version - diagonal







Full version
Full version - diagonal


Hi Jack,

Part of what I was most interested in was there would be no degradation in the performance of the R lenses. If there was any better performance that would have just been icing on the cake.

Rich



Feb 03, 2015 at 10:21 PM
naturephoto1
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Re: A thinner sensor stack may be possible after all!


charles.K wrote:
Hi Charlie,

I don\'t think there is an argument regarding M bodies being the better platform for M mount lenses. As I mentioned before the M9 had many vignetting and colour cast issues before the later FW updates. These corrections that must done with M mount WA\'s, either by in camera corrections or external software.

From what I observe, and I really did not expect the 28 Cron to perform as well, so the results are excellent IMO. With the A7rM having the 36MP and increased DR/higher ISO, this is great for those looking for landscape/seascapes.

The question of ergonomics is a personal choice. Having moved my M mount platform to Sony, I would not revert back unless Leica had a similar offering with a RF. Then of course there is a cost factor.

From what I have seen, the results are great with the \"thin filter modification\". For working with UWA\'s the Lr work flow will need to adapt some corrections, but this just takes a small amount of effort to set it up to begin and should be no real issue.

Hi Rich,

The corrections in Lr 5.7 mainly deal with geometric corrections for the M lenses rather colour cast and vignetting. I think that Adobe did not want to add another correction to the existing M9/M240 in-camera corrections.


Hi Charles,

When I used LR5.7 for my M WATE I found that as I applied more it lessened vignetting (light loss in the corners) as in scenes with blue sky and snow as well as geometric correction.

Rich



Feb 03, 2015 at 10:19 PM





  Previous versions of naturephoto1's message #12838216 « A thinner sensor stack may be possible after all! »