Rare Fisheye Nikkor for Disney

[Akira]

A never-heard-of fisheye Nikkor...

https://petapixel.com/2025/01/16/one-of-a-kind-nikon-14-3mm-f-4-fisheye-can-be-yours-for-250000/

[bobfriedman]

very interesting.... nice find Akira!..  I am no expert, but this is a first for me as well and according to the article the should be no surprise since only one was made.

[Birna Rørslett]

Very interesting design, and the price signals this glass monster should never be used to do real photography for the fear of scratching the lens

The calculation to show this is an "f/2" lens was just stupid, though.

[MEPER]

Maybe free shipping can be negotiated?

[Akira]

very interesting.... nice find Akira!..  I am no expert, but this is a first for me as well and according to the article the should be no surprise since only one was made.

Glad you enjoyed the article, Bob!

Very interesting design, and the price signals this glass monster should never be used to do real photography for the fear of scratching the lens

The calculation to show this is an "f/2" lens was just stupid, though.

I think they took the x0.51 factor into calculation of the focal length as well.

Maybe free shipping can be negotiated?

I thought the same way.   

[pluton]

The calculation to show this is an "f/2" lens was just stupid, though.

Petapixel later issued a "correction" explaining that the Leica Store Netherlands had written the stupid copy.

[F2F3F6]

Rare Nikon glass becomes even rarer when transformed for cine or astro use...2,0/300 IF-ED or 2,8/6 Fisheye are really unique ! Thanks Akira for this article 

[bobfriedman]

The calculation to show this is an "f/2" lens was just stupid, though.

my thought is they missed the square root.  so for a image diagonal ratio of 0.51, (0.51)^1/2=0.7141, 0.7141x4=2.8566

I would like to know how to properly scale aperture as I have been using the Fuji GFX, so if I have this wrong let me know.

[Akira]

Rare Nikon glass becomes even rarer when transformed for cine or astro use...2,0/300 IF-ED or 2,8/6 Fisheye are really unique ! Thanks Akira for this article 

Glad you enjoy it!

[Birna Rørslett]

There is no need to "scale" aperture. It stays put whatever the format. The same holds for image magnification. And image circle. And the angle of view of the design. And resolution.

What does change with the format is how much of what the lens "sees" that can be recorded onto film/digital sensor.

[bobfriedman]

There is no need to "scale" aperture. It stays put whatever the format. The same holds for image magnification. And image circle. And the angle of view of the design. And resolution.

What does change with the format is how much of what the lens "sees" that can be recorded onto film/digital sensor.

I think I might have been wrong on the square root.. no matter... back to your response.

what are your thoughts using f/64 on an 8x10 view relative to 35mm format.

[Birna Rørslett]

Using f/64 on the 8x10" format is fairly OK, however would be a disaster on the 24x36mm frame.  Secondary magnification from the large format to the final print is modest, compared to what the smaller format would require. Hence the difference.