Stefano Posted May 14, 2023 Share Posted May 14, 2023 Browsing YouTube I found this video: https://youtu.be/TlsS3rUjg8c [the site is acting weird, at least on my PC, so I cannot embed the link] The uploader warns not to watch the video as it is boring, and I haven't watched the lens-building part. What I find particularly interesting is the beginning of the video. It shows a modern f/0.95 lens next to an older f/4 enlarger lens in UV. The enlarger lens doesn't show any false color, and the modern lens has a lavender tint, as expected. But actually it doesn't look too bad, and it seems to transmit a surprising amount of light. Maybe some f/0.95 lenses could be interesing for UV photography if deep reach is not a priority. Link to comment
dabateman Posted May 15, 2023 Share Posted May 15, 2023 Its possible. I haven't tested my ttartisan 50mm f0.95 yet for UV, but a 365nm flashlight passes right through it with out any blockage. My Astihori 28mm f13 probe lens blocks all light below about 404nm. No UV at all, I scanned it as I was temped to add Uv leds. The ones that come with it are centered around 450nm. Link to comment
Stefano Posted May 15, 2023 Author Share Posted May 15, 2023 No attenuation at 365 nm sounds pretty good. It would be interesting to see a proper test. Link to comment
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