BastianK wrote:
Today we published my 35mm comparison, I don't want to discuss it here in detail as this thread is already loaded with information,
but there are many with/without filter comparisons at different distances for Zeiss ZM 35mm 1.4, Voigtlander VM 35mm 1.7 and Leica Summilux 35mm 1.4 Asph FLE included,
which I think might be of interest for some of you. https://phillipreeve.net/blog/35mm-comparison-voigtlander-zeiss-leica/
Bastian, this is perhaps the most informative review I have seen of 35mm lenses available for the Sony system. Thank you so much! Very interesting to see the performance of the FLE compared to the others. I have the ZM but have been thinking about trying the FLE also, as I really enjoy using the tabs compared to a standard focusing ring (the tabs are so much easier to handle when using gloves). But given that the performance to price ratio is significantly lower than the ZM it really makes no sense to even think about this option.
OleAndre wrote:
Bastian, this is perhaps the most informative review I have seen of 35mm lenses available for the Sony system. Thank you so much! Very interesting to see the performance of the FLE compared to the others. I have the ZM but have been thinking about trying the FLE also, as I really enjoy using the tabs compared to a standard focusing ring (the tabs are so much easier to handle when using gloves). But given that the performance to price ratio is significantly lower than the ZM it really makes no sense to even think about this option.
Ole
I agree! Very informative. What I get out of this is that the ZM, CV and Loxia all have their place and utility and can produce quality images if you know their strengths and weaknesses.
So guys Im having a issue and not sure what to make of it at the moment.
Im going to load up the raws but it is Big bronco and than of course a infinity test. Here are my thoughts so far
So having a real issue this is my third test and pretty much the same between the Proxar and Hoya +1in all three tests. Big Bronco and infinity shots are better on upper left on the Proxar. But on the right the Hoya is better. 5.6 upper right on Proxar equals 2.8 on Hoya on upper right on Big Bronco. Proxar at 2.8 on upper left side it takes the Hoya until F4. Not sure what to make of it. I have the Proxar centered good now. One thing different between the two the Hoya is thicker and I am at infinity just short of the hard stop. The Proxar is at infinity right at the hard stop. If I kept the Hoya in than I would add a shim back in but as it is if its the Proxar I'm perfect at the hard stop. The weird thing is the Proxar is better on the left but weaker on the right to the Hoya.
Im going to rename the raws and than I will load them up if anyone wants to look at this
They are very similar in the center. However the Proxar is better mid-field and corners at the TOP LEFT and the opposite happens at the BOTTOM RIGHT where the Hoya looks stronger. Very strange.
Color and contrast are very similar.
The ZM 25/2.8 is very impressive with the front-lens but from your test, it still looks best at f/8 for the mid and extreme corners.
For the best center, f/5.6 should be used (Looks better than f/4 and at f/8 I see diffraction).
Perhaps f/6.3 will be the optimum aperture for best sharpness across the field but I can't be sure because you jumped from f/5.6 to f/8 on your infinity test.
Now later hard to do, but 180 degree turn on filter and shooting another series would have revealed if it's filter assembly or something else.
Both of these are practically at infinity as lens is only 25mm in focal length.
On infinity shots (I checked f/5.6 - _DSC5190.ARW and _DSC5196.ARW) both Proxar and Hoya show
- top right corner is focused to infinity, the pallets of bricks, truck etc. are clearly in focus
- bottom left corner is focused to branches close by and building is not in focus at all
So something is tilted or decentered.
Bottom right, close focused:
Top left infinity focused:
If you shoot without these filters is top left corner better than bottom right at infinity?
Yes bottom right on the infinity shots are a strange lot the bushes fairly close look good but the buildings in back the Proxar not so good. Top left which I was more interested in the Proxar wins. I have a thought I may put back the rear element shin and pull the one from the front out. I'm also going to rotate the glass in both filters and see if this causing the issue. I'll go 90 degrees so I'll know if the left side starts going south on me and the right improves than I'll know if my mounts are funky. I know the lens itself is center because I tested that when I got as first test. So something is funky here. Maybe I put the lens back off when I was removing shims. Certainly the perplexing issue of the day.
Big Bronco scene; similar thing happens - top left in both lenses pretty good (Hoya slightly worse) @ f/5.6, but right side pretty bad (bottom right corner even worse that the part I chose for comparison). Same on both lenses. Proxar might be marginally better on left side, both bad on right side, Proxar really bad.
Top row Proxar, Bottom row Hoya:
GMPhotography wrote:
Yes bottom right on the infinity shots are a strange lot the bushes fairly close look good but the buildings in back the Proxar not so good........
Building simply is not in focus - and the branches are! The focus is curved on right side of image towards the camera. This is no blur or anything like that, 100% field curvature. Building on bottom right are not good because focus is in ~5m(15 feet) and building ~50m(150feet) [distances are very rough estimates, really hard to estimate as I have not been in your backyard...].
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GMPhotography wrote:
End of day we may learn something from this
Yes, hopefully something which gives us hope and not something which makes us to drown in despair...
I have also learned today already something; I was shooting yesterday with Contax G28 and ZM25. I look the pictures and G28 was sharper on pixel level. I spend some hours on this and can't figure it out. Then it hits me; G28 was shoot with Kolari modified A7, and it doesn't have AA-filter, while ZM25 was shoot standard A7v2 - now I feel so stupid wasting lots of time for this but I learned something
Looks to to be the front lens when i rotated it 90 degrees the upper right got better and the upper left held its own with the Proxar. Still looking at this but also I tried my Hawk and Fotosy adapters and that is NOT the issue
but I learned something 
