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Nikon Repro Nikkor 85mm f1.0
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PostPosted: Tue May 24, 2022 10:17 am    Post subject: Nikon Repro Nikkor 85mm f1.0 Reply with quote
Here's an interesting beastie, an symmetrical industrial lens with 12 elements in 8 groups, used for highest quality 1:1 reproductions. Unfortunately because of the short flange distance, it is not possible to shoot at much lower magnifications, but for me it has a wonderful look shot wide open.
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PostPosted: Tue May 24, 2022 11:38 am    Post subject: Reply with quote
Very interesting. My JML 64mm f0.85 is another example of a superfast lens optically designed for closeups only (whilst not perfectly symmetrical).

I did think that depth of field of macro lenses was sufficiently thin anyway, until I did a comparison and found a noticeable, useful benefit.


PostPosted: Tue May 24, 2022 1:16 pm    Post subject: Reply with quote
Very nice artistic images 👍


PostPosted: Tue May 24, 2022 8:30 pm    Post subject: Reply with quote
eggplant wrote:
Very interesting. My JML 64mm f0.85 is another example of a superfast lens optically designed for closeups only (whilst not perfectly symmetrical).

I did think that depth of field of macro lenses was sufficiently thin anyway, until I did a comparison and found a noticeable, useful benefit.


The Nikkor is unique in that it can resolve 200 lp/mm, much higher than usual superfast lenses. I just posted some shots in the digital gallery shot with a FJW Industries 90mm f1.0 lens that covers MF and can be adapted to focus to infinity on mirrorless. Nice but nowhere near the resolution of the Nikkor.


PostPosted: Tue May 24, 2022 10:02 pm    Post subject: Reply with quote
kymarto wrote:
eggplant wrote:
Very interesting. My JML 64mm f0.85 is another example of a superfast lens optically designed for closeups only (whilst not perfectly symmetrical).

I did think that depth of field of macro lenses was sufficiently thin anyway, until I did a comparison and found a noticeable, useful benefit.


The Nikkor is unique in that it can resolve 200 lp/mm, much higher than usual superfast lenses. I just posted some shots in the digital gallery shot with a FJW Industries 90mm f1.0 lens that covers MF and can be adapted to focus to infinity on mirrorless. Nice but nowhere near the resolution of the Nikkor.


I think I remember seeing some of the FJW, might've been yours- quite unique in the (considerably) long flange distance but I haven't tested out many 90mm 'X-Ray' lenses.

The issue with the 'Milky look' is people taking ones designed for infinity, and unit-focusing them at incredibly short distances they weren't designed for- a byproduct of the unachievably short flange distance.

If you look back the very fast 50 in a company's lens lineup would always have worse minimum focus capabilities.


...However much this makes sense, I am not sure if it really matters, or whether I should blame people for that expectation. At any rate these lenses were never designed for full frame coverage at infinity, so it is a good way to ward people off Wink They will never get the shallow depth of field across a full frame.


I did see a test of a Rayxar on a Nikon Z on nikongear (now down?), focused on a bookcase a few meters away, and you could clearly see very nice sharpness in it's image circle.



As for your gallery photos, it is certainly a pretty stellar rendering, but I can't quite settle on the amount of optical vignetting in the shots shown (which should give us clue for coverage) - any more samples you could post?


PostPosted: Wed May 25, 2022 2:06 am    Post subject: Reply with quote
More shots like those I could post. Those shots are not corrected for vignetting, there is no falloff in the 35mm frame. I took the lens off and shifted it holding it next to the body, trying to determine the image circle. Itvs certainly larger than full frame, appears to be around 50-60mm.

Last edited by kymarto on Wed May 25, 2022 8:35 am; edited 1 time in total


PostPosted: Wed May 25, 2022 6:25 am    Post subject: Reply with quote
Like 1 Like 1 Like 1


PostPosted: Wed May 25, 2022 8:13 am    Post subject: Reply with quote
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PostPosted: Wed May 25, 2022 10:29 am    Post subject: Reply with quote
I guess everything is f/1 in those pictures.
Very difficult to nail the focus.


PostPosted: Wed May 25, 2022 10:57 am    Post subject: Reply with quote
kymarto wrote:
More shots like those I could post. Those shots are not corrected for vignetting, there is no falloff in the 35mm frame. I took the lens off and shifted it holding it next to the body, trying to determine the image circle. Itvs certainly larger than full frame, appears to be around 50-60mm.


Well that's interesting, and definitely worth posting some more. To be fair, the image circle will always look larger when wide open, usually given at f/16, but no aperture control...
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