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Archive 2016Front-End Filter Improves Corner Smearing
p.46 #1Front-End Filter Improves Corner Smearing
I feel a bit guilty for suggesting the Hoya solution. It seems that, after all, it won't be an easier setup than a Proxar.
Anyway, vigneting aside, have you guys checked the corner improvement of the Hoya compared to the Proxar ?. First informal tests led to think that both were in the same ballpark.
Anyway, vigneting aside, have you guys checked the corner improvement of the Hoya compared to the Proxar ?. First informal tests led to think that both were in the same ballpark.
Feb 11, 2017 at 12:31 PM
p.46 #2Front-End Filter Improves Corner Smearing
I thought about the same thing too. Lol
MIRANDA1 wrote:
GMPhotography wrote
I just ordered a 46mm normal UV and thin UV filter. Im not worried if the lens extends past the mount since i will have the hood on it. The vignette is very slight so even 1mm shorter might just do it.
Feb 11, 2017 at 12:56 PM
p.46 #3Front-End Filter Improves Corner Smearing
If they are the same I'm going with the Hoya better setup but I have a feeling the Hoya is optically slightly better. I'm going to do a this vs that test.
I was going to test this morning but my ZM 85 is coming today so want to check it also
I was going to test this morning but my ZM 85 is coming today so want to check it also
Feb 11, 2017 at 12:59 PM
p.46 #4Front-End Filter Improves Corner Smearing
Has anybody tested the voigtlander 35mm 1.2 II?
Everybody talks about its character, the unique bokeh but no comments about the corners. It would be interesting to see what PCX/Proxar can do with this extreme lens.
Everybody talks about its character, the unique bokeh but no comments about the corners. It would be interesting to see what PCX/Proxar can do with this extreme lens.
Feb 11, 2017 at 02:23 PM
p.46 #5Front-End Filter Improves Corner Smearing
GMPhotography wrote:
I'll get the hood Monday. I got my final setup for the ZM 35 . Thin 49,49-55, thin 55-52, 52mm Retaining ring. I set infinity one Gold shim removed the rest. Using the Hawks ad
Guy, are you able to attach a front lens cap on this setup for the ZM 35?
Rob
I'll get the hood Monday. I got my final setup for the ZM 35 . Thin 49,49-55, thin 55-52, 52mm Retaining ring. I set infinity one Gold shim removed the rest. Using the Hawks ad
Guy, are you able to attach a front lens cap on this setup for the ZM 35?
Rob
Feb 11, 2017 at 03:23 PM
p.46 #6Front-End Filter Improves Corner Smearing
Rob it maybe tight, I can put a 55mm filter on , maybe one turn but a lens cap maybe too little thread left. A very thin retaining ring here would help the cause.
Feb 11, 2017 at 04:08 PM
p.46 #7Front-End Filter Improves Corner Smearing
Okay back to the 25mm I took the +4 filter ring and filed it down quite a lot. Tools Dremel, Orbital sander than Dremel with wire brush.
Feb 11, 2017 at 04:09 PM
p.46 #8Front-End Filter Improves Corner Smearing
GMPhotography wrote:
Rob it maybe tight, I can put a 55mm filter on , maybe one turn but a lens cap maybe too little thread left. A very thin retaining ring here would help the cause.
How about a 55-52 step-down ring that is not so thin? There might be more thread for a lens cap attachment. Would it cause vignetting?
Rob
Rob it maybe tight, I can put a 55mm filter on , maybe one turn but a lens cap maybe too little thread left. A very thin retaining ring here would help the cause.
How about a 55-52 step-down ring that is not so thin? There might be more thread for a lens cap attachment. Would it cause vignetting?
Rob
Feb 11, 2017 at 06:57 PM
p.46 #9Front-End Filter Improves Corner Smearing
If you stay in the 55 mm opening you maybe okay. I think Fred did thin 49, than thin 49-55, 55-52 step down. Maybe he will weigh in on this one
Feb 11, 2017 at 07:55 PM
p.46 #10Front-End Filter Improves Corner Smearing
We don't know yet whether Optosigma PCX lenses can be grounded or not. What's about Proxar or others close-up filters. Can they be edge grounded?
Feb 11, 2017 at 10:08 PM
p.46 #11Front-End Filter Improves Corner Smearing
Not that I am surprised after reviewing 45 pages on this thread, but now having done my own little test with HaruhikoT's suggested inverted 1500mm PCX + step up/down rings + version III Techart auto focus adapter for Contax G lens to Sony E on the A7rII, with the Contax G Biogon 28/2.8, I 'd say the differences are dramatic.
Note* Minor adjustments applied in LR to bring up exposure and adjust some clipped blacks. I also applied the Adobe Zeiss Bigon T*2,8/28 lens profile in LR. No additional sharpening or cropping. Hand held with admitted fidgeting with the adapter's AF system ( sometimes it works, some times it doesnt with this particular lens) My setup here:
https://www.fredmiranda.com/forum/topic/1453834/43 ( last image/post of page 43)
#1 image with inverted 1500mm PCX + rings
#2 image without
HaruhikoT, once again thank you. If I may, how did you think to come up with this?
Edited on Feb 12, 2017 at 04:06 PM · View previous versions
Note* Minor adjustments applied in LR to bring up exposure and adjust some clipped blacks. I also applied the Adobe Zeiss Bigon T*2,8/28 lens profile in LR. No additional sharpening or cropping. Hand held with admitted fidgeting with the adapter's AF system ( sometimes it works, some times it doesnt with this particular lens) My setup here:
https://www.fredmiranda.com/forum/topic/1453834/43 ( last image/post of page 43)
#1 image with inverted 1500mm PCX + rings
#2 image without
HaruhikoT, once again thank you. If I may, how did you think to come up with this?
Edited on Feb 12, 2017 at 04:06 PM · View previous versions
Feb 12, 2017 at 03:38 PM
p.46 #12Front-End Filter Improves Corner Smearing
GMPhotography wrote:
Okay back to the 25mm I took the +4 filter ring and filed it down quite a lot. Tools Dremel, Orbital sander than Dremel with wire brush.
OK, finally completed the Hoya +1 closeup filter grinding. The photos should give you an idea of how much I removed if you already have the Hoya set. The edge of the filter now sits just slightly below the level of the inner ring of the Zeiss hood. I had a heck of a time removing the retaining ring from the filter housing, it was very tight on the +1 and I didn't want to risk chipping the lens so I basically Dremeled it out of the housing. I'll have to go out tomorrow and test it out, it's late in the day and the weather is really crummy today.
zm25-2 by Jose Raposo, on Flickr
ZM25 by Jose Raposo, on Flickr
Okay back to the 25mm I took the +4 filter ring and filed it down quite a lot. Tools Dremel, Orbital sander than Dremel with wire brush.
OK, finally completed the Hoya +1 closeup filter grinding. The photos should give you an idea of how much I removed if you already have the Hoya set. The edge of the filter now sits just slightly below the level of the inner ring of the Zeiss hood. I had a heck of a time removing the retaining ring from the filter housing, it was very tight on the +1 and I didn't want to risk chipping the lens so I basically Dremeled it out of the housing. I'll have to go out tomorrow and test it out, it's late in the day and the weather is really crummy today.
zm25-2 by Jose Raposo, on FlickrZM25 by Jose Raposo, on FlickrFeb 12, 2017 at 04:00 PM
p.46 #13Front-End Filter Improves Corner Smearing
I grinded down maybe a touch further. I'm going out in the morning no sun today but I got a few things to test out
Feb 12, 2017 at 05:45 PM
p.46 #14Front-End Filter Improves Corner Smearing
baltmin wrote:
Has anybody tested the voigtlander 35mm 1.2 II?
Everybody talks about its character, the unique bokeh but no comments about the corners. It would be interesting to see what PCX/Proxar can do with this extreme lens.
I use the Voight 35 1.2 ver II on the A7rII with TAP and don't seem to notice problematic corners. Since you mentioned it, I'll take another look and scrutinze extreme corners more cloesly. Do you have any examples you can post ?
Has anybody tested the voigtlander 35mm 1.2 II?
Everybody talks about its character, the unique bokeh but no comments about the corners. It would be interesting to see what PCX/Proxar can do with this extreme lens.
I use the Voight 35 1.2 ver II on the A7rII with TAP and don't seem to notice problematic corners. Since you mentioned it, I'll take another look and scrutinze extreme corners more cloesly. Do you have any examples you can post ?
Feb 12, 2017 at 06:10 PM
p.46 #15Front-End Filter Improves Corner Smearing
LBJ2 wrote:
Not that I am surprised after reviewing 45 pages on this thread, but now having done my own little test with HaruhikoT's suggested inverted 1500mm PCX + step up/down rings + version III Techart auto focus adapter for Contax G lens to Sony E on the A7rII, with the Contax G Biogon 28/2.8, I 'd say the differences are dramatic.
Note* Minor adjustments applied in LR to bring up exposure and adjust some clipped blacks. I also applied the Adobe Zeiss Bigon T*2,8/28 lens profile in LR. No additional sharpening or cropping. Hand held with admitted fidgeting with the adapter's AF...Show more →
Looks the same as mine, significant improvement. Congrats!
Feb 12, 2017 at 09:19 PM
p.46 #16Front-End Filter Improves Corner Smearing
LBJ2 wrote:
baltmin wrote
Has anybody tested the voigtlander 35mm 1.2 II?Everybody talks about its character, the unique bokeh but no comments about the corners. It would be interesting to see what PCX/Proxar can do with this extreme lens.
Thank you for your response. I had the impression that all the Leica M-mount lenses wider than 50mm have the same problem with smearing in the borders/corners. I was looking forward to buy this lens but I changed my mind after reading the above. This thread however made me reconsider trying it.
I haven't seen any samples with the A7 series. I don't know if there is any out there available in full size. Obviously you are happy with its corner performance, which is good news. But there is still a question whether it can perform even better based on what we have read in this thread, especially in small apertures.
Feb 13, 2017 at 09:00 AM
p.46 #17Front-End Filter Improves Corner Smearing
baltmin wrote:
Everybody talks about its character, the unique bokeh but no comments about the corners. It would be interesting to see what PCX/Proxar can do with this extreme lens.I use the Voight 35 1.2 ver II on the A7rII with TAP and don't seem to notice problematic corners. Since you mentioned it, I'll take another look and scrutinze extreme corners more cloesly. Do you have any examples you can post ?Thank you for your response. I had the impression that all the Leica M-mount lenses wider than 50mm have the same problem with smearing in the borders/corners. I was looking forward to buy this lens but I changed my mind after reading the above. This thread however made me reconsider trying it.
I haven't seen any samples with the A7 series. I don't know if there is any out there available in full size. Obviously you are happy with its corner performance, which is good news. But there is still a question whether it can perform even better based on...Show more →
Hello: I use this lens mostly at 1.2 and 1.4 on the A7r2 not really paying too much attention to the corners. I don't mind taking some time this coming weekend to scrutinize the corners stopped down to F8 and will let you know.
LBJ2 wrote
baltmin wrote
Has anybody tested the voigtlander 35mm 1.2 II?Everybody talks about its character, the unique bokeh but no comments about the corners. It would be interesting to see what PCX/Proxar can do with this extreme lens.
I haven't seen any samples with the A7 series. I don't know if there is any out there available in full size. Obviously you are happy with its corner performance, which is good news. But there is still a question whether it can perform even better based on...Show more →
Hello: I use this lens mostly at 1.2 and 1.4 on the A7r2 not really paying too much attention to the corners. I don't mind taking some time this coming weekend to scrutinize the corners stopped down to F8 and will let you know.
Feb 13, 2017 at 10:19 AM
p.46 #18Front-End Filter Improves Corner Smearing
So ran some tests . Major improvement on the ZM 35 as Fred has posted some results of that and my tests prove the same excellent improvement with the OptimaSigma .5
The ZM 25 with the Proxar 1m and the Hoya 1m also big improvements as well. Im going to go out and test the Hoya vs Proxar just to be sure at infinity the Hoya was better but on Big Bronco The Hoya on the right side was slightly better but the left side for the Hoya was slightly worse at 2.8. Mixed bag but Im leaning more on the infinity shots and I would say the Hoya.
Bottom line either way your going to be fine as in most cases your not wide open anyway but the improvements here are outstanding than just the native lens.
Edited on Feb 13, 2017 at 12:36 PM · View previous versions
The ZM 25 with the Proxar 1m and the Hoya 1m also big improvements as well. Im going to go out and test the Hoya vs Proxar just to be sure at infinity the Hoya was better but on Big Bronco The Hoya on the right side was slightly better but the left side for the Hoya was slightly worse at 2.8. Mixed bag but Im leaning more on the infinity shots and I would say the Hoya.
Bottom line either way your going to be fine as in most cases your not wide open anyway but the improvements here are outstanding than just the native lens.
Edited on Feb 13, 2017 at 12:36 PM · View previous versions
Feb 13, 2017 at 12:17 PM
p.46 #19Front-End Filter Improves Corner Smearing
Im really leaning to where the Hoya is better. Just received my hood and I can take it off and on without any inference with the Hoya. I really like that
Feb 13, 2017 at 12:30 PM
p.46 #20Front-End Filter Improves Corner Smearing
GMPhotography wrote:
Im really leaning to where the Hoya is better. Just received my hood and I can take it off and on without any inference with the Hoya. I really like that
Handy!
What did you like about the ZM vs the Batis? Or, did you just have the lens already?
Feb 13, 2017 at 02:11 PM