Cadmium Posted June 9, 2020 Share Posted June 9, 2020 This is the Kyoei 80mm f/3.5, M42 mount, 34mm front filter thread.Transmits UV deep, like the Kuribayashi/Kyoei 35mm f/3.5 lenses (only with some added focus shift, see the red R). Kyoei 80mm f/3.5 lens compared to Kuribayashi 35mm f/3.5 lens. I haven't used this lens much, so I can't think of any UV shots using it, other than the Sparticle tests, but here are some IR tests using a Schott RG850 filter on the Kyoei 80mm f/3.5 lens: 100% crop Link to comment
Andy Perrin Posted June 9, 2020 Share Posted June 9, 2020 Cadmium, have you tried taking a sparticle picture with the UV Nikkor yet to see if there are any brightness variations when the lens is not an issue? As a control, in other words. Link to comment
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