NikonGear'23
Gear Talk => Lens Talk => Topic started by: Akira on January 08, 2026, 13:08:22
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The latest No.96 story is about Nikkor-H 85mm f1.8. And in the appendix, the auther is explaining the optical influence of the sensor filter when using lenses designed for film cameras.
https://imaging.nikon.com/imaging/information/story/0096/
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And in the appendix, the auther is explaining the optical influence of the sensor filter when using lenses designed for film cameras.
https://imaging.nikon.com/imaging/information/story/0096/
This explains my disappointment in results with my 24 f2.8 AiS on a Df, a lens I was happy with in the film days.
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The AiS 24/2.8 has a reputation for not doing well on digital. I've always wondered if the previous Nikon 24mm, the K/Ai 24/2.8, does any better.
When the full frame D3 arrived, I was lucky that the handful of old Nikon lenses I happened to own at the time seemed to have had no obvious decline in performance on the new digital sensors. K/Ai 18/4, AiS 20/2.8, AiS 28/2.8 all seemed to work well on the D3.
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The appendix also contributes to undrstanding why catadioptic lenses with rear filters are calculated with that glass in the light path. Something which several net post seem to believe is unnecessary. Also, the type of glass must have an influence on how different wavelengths are refracted
p.
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What an interesting article. My first Nikkor was the K version of the 85mm f1.8. I still have that lens, nearly 50 years later, along with an AI-ed version bought much more recently. I do love its characteristics, but even more I love the way it handles.
The info about the sensor filter is really good. I still have a big selection of old Nikkor manual lenses, and do love to shoot them, even with their flaws. A vertical version of this image that I took with the 24mm f2.8 AIS on a D600 ran six columns wide as the cover of the Los Angeles Times Travel section a dozen years ago. So don't go abandoning those old lenses just yet.
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Very interesting read. This could also be of interest: https://www.lensrentals.com/blog/?_page=_CVNUMBER_&s=sensor+stack (https://www.lensrentals.com/blog/?_page=_CVNUMBER_&s=sensor+stack)
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What an interesting article. My first Nikkor was the K version of the 85mm f1.8. I still have that lens, nearly 50 years later, along with an AI-ed version bought much more recently. I do love its characteristics, but even more I love the way it handles.
The info about the sensor filter is really good. I still have a big selection of old Nikkor manual lenses, and do love to shoot them, even with their flaws. A vertical version of this image that I took with the 24mm f2.8 AIS on a D600 ran six columns wide as the cover of the Los Angeles Times Travel section a dozen years ago. So don't go abandoning those old lenses just yet.
Great shot, Gil
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The filter stack, despite being a piece of clear window, will add a bit of optical path length depending on how thick it is.
You can try this out by adding a piece of clear glass into something like an FTZ for a comparison.
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Thank you Akira... quite a good explanation.