photoni Posted January 12, 2022 Share Posted January 12, 2022 UVP thanks for your advice I am amazed at the features of this simple old cheap lens. it is a Cooke triplet that focuses at almost the same distance with both UV and IR the engraving is good, it is small beautiful and light. Thanks Toni P.S. Sony A7 fs - Lazise locality, Garda lake ZWB2+BG18 - 1/60 - f:2,9 - 6400 Iso - file 2000x1333 - Q8 - 790 KB Hoya R72 - 1/160 - f:8 - 100 Iso - file 2000x1333 - Q8 - 663 KB ZWB2+BG18 - 1/60 - f:2,9 - 800 Iso - file 2000x1333 - Q8 - 376 KB Hoya R72 - 1/200 - f:8 - 100 Iso - file 2000x1333 - Q8 - 741 KB Link to comment
colinbm Posted January 12, 2022 Share Posted January 12, 2022 Looks good Toni Is that vignetting on full frame ? Link to comment
photoni Posted January 12, 2022 Author Share Posted January 12, 2022 2 minutes ago, colinbm said: Looks good Toni Is that vignetting on full frame ? Colin ... I have not calculated, when it is fully open it has a "standard" vignetting of approximately one aperture in the corners, from f: 5.6 is small. the UV photos have the small filter of the Nemo flashlight and a piece of the broken BG18; they do not cover the entire first lens, therefore a lot of vignette wide open. Link to comment
colinbm Posted January 12, 2022 Share Posted January 12, 2022 15 minutes ago, photoni said: Colin ... I have not calculated, when it is fully open it has a "standard" vignetting of approximately one aperture in the corners, from f: 5.6 is small. the UV photos have the small filter of the Nemo flashlight and a piece of the broken BG18; they do not cover the entire first lens, therefore a lot of vignette wide open. Thanks Link to comment
Doug A Posted January 12, 2022 Share Posted January 12, 2022 @photoniexcellent results. Thanks for the heads up on this lens. The dock with UV haze is my favorite. Thanks for sharing, Doug A Link to comment
Nate Posted January 12, 2022 Share Posted January 12, 2022 That lens has some great results! How's the fishing there when the waters not so choppy? Link to comment
Andrea B. Posted January 12, 2022 Share Posted January 12, 2022 Looks like you got a good copy of the Meritar 50/2.9. I like the R72 photos. That is one of my favorite IR-pass filters. Link to comment
Cadmium Posted January 13, 2022 Share Posted January 13, 2022 Photoni, Those are great. I am partial to the IR shots, the second photo is my favorite. Link to comment
Andy Perrin Posted January 13, 2022 Share Posted January 13, 2022 I like the first photo best. Love the dark tree limbs. Link to comment
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