Testing UV filters in order to reduce (Lo)CA (Zeiss 55mm 1.8 & R4)
Hi!
I have posted a thread earlier wondering whether UV filter could help reducing LoCA on lenses, and decided to do some testing.
I have obtained 6 different (supposedly strong UV - within 400-420nm range) filters to test on my Zeiss 55mm 1.8 and R4:
1) B+W 415 (filter arrived but I realised it is fake) - there is no effect with this filter on the image as well;
2) Older Panchromar UV II - the filter has arrived and initial results seem to be positive;
3) B+W 415 Strong UV (original) / Should be Schott GG400 glass (Reply added on 10/05/2021);
4) Tiffen 2B (Tests added on 30/04/2021);
5) Custom Schott (GG420 glass) @ 2mm and around 418nm (Not here yet);
6) GTX L41 filter (Tests added on 12/05/2021).
Below are 2 filters which have arraived and test samples for Panchromar. ...Unfortunately, it seems I cannot upload files here, so I will try to link another forum.
P.S. Panchromar provides good initial results, just WB is something you have to adjust probably. However, I generally initially like slightly warmer / yellower WB on this lens.
Testing UV filters in order to reduce (Lo)CA (Zeiss 55mm 1.8 & R4)
Hi!
I have posted a thread earlier wondering whether UV filter could help reducing LoCA on lenses, and decided to do some testing.
I have obtained 6 different (supposedly strong UV - within 400-420nm range) filters to test on my Zeiss 55mm 1.8 and R4:
1) B+W 415 (filter arrived but I realised it is fake) - there is no effect with this filter on the image as well;
2) Older Panchromar UV II - the filter has arrived and initial results seem to be positive;
3) B+W 415 Strong UV (original) / Should be Schott GG400 glass (Reply added on 10/05/2021);
4) Tiffen 2B (Tests added on 30/04/2021);
5) Custom Schott (GG420 glass) @ 2mm and around 418nm (Not here yet);
6) GTX L41 filter.
Below are 2 filters which have arraived and test samples for Panchromar. ...Unfortunately, it seems I cannot upload files here, so I will try to link another forum.
P.S. Panchromar provides good initial results, just WB is something you have to adjust probably. However, I generally initially like slightly warmer / yellower WB on this lens.
Testing UV filters in order to reduce (Lo)CA (Zeiss 55mm 1.8 & R4)
Hi!
I have posted a thread earlier wondering whether UV filter could help reducing LoCA on lenses, and decided to do some testing.
I have obtained 5 different (supposedly strong UV - within 400-420nm range) filters to test on my Zeiss 55mm 1.8 and R4:
1) B+W 415 (filter arrived but I realised it is fake) - there is no effect with this filter on the image as well;
2) Older Panchromar UV II - the filter has arrived and initial results seem to be positive;
3) B+W 415 Strong UV (original) / Should be Schott GG400 glass (not here yet);
4) Tiffen 2B (Tests added on 30/04/2021);
5) Custom Schott (GG420 glass) @ 2mm and around 418nm (Not here yet).
Below are 2 filters which have arraived and test samples for Panchromar. ...Unfortunately, it seems I cannot upload files here, so I will try to link another forum.
P.S. Panchromar provides good initial results, just WB is something you have to adjust probably. However, I generally initially like slightly warmer / yellower WB on this lens.
Testing UV filters in order to reduce (Lo)CA (Zeiss 55mm 1.8 & R4)
Hi!
I have posted a thread earlier wondering whether UV filter could help reducing LoCA on lenses, and decided to do some testing.
I have obtained 5 different (supposedly strong UV - within 400-420nm range) filters to test on my Zeiss 55mm 1.8 and R4:
1) B+W 415 (filter arrived but I realised it is fake) - there is no effect with this filter on the image as well;
2) Older Panchromar UV II - the filter has arrived and initial results seem to be positive;
3) B+W 415 Strong UV (original) / Should be Schott GG400 glass (not here yet);
4) Tiffen 2B (Not here yet);
5) Custom Schott (GG420 glass) @ 2mm and around 418nm (Not here yet).
Below are 2 filters which have arraived and test samples for Panchromar. ...Unfortunately, it seems I cannot upload files here, so I will try to link another forum.
P.S. Panchromar provides good initial results, just WB is something you have to adjust probably. However, I generally initially like slightly warmer / yellower WB on this lens.
Apr 17, 2021 at 07:20 AM
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