Gear Talk > Lens Talk
Nikkor noct on medium format
JJChan:
https://www.youtube.com/watch?v=L9LLcD9FZEM
Hasselblad 907X mini review
Nikkor noct apparently minimal vignetting on small digital medium format?
Jack Dahlgren:
The sensor is 33x44mm. So diagonal is 55mm.
FX is 43mm diagonal.
Roland Vink:
Fast lenses like the Noct usually have high mechanical vignetting at wide apertures even on their native format, on the larger format it will be even worse. At smaller apertures these lenses can often cover a slightly larger image circle without too much vignetting, although resolution is often poor due to field curvature, coma, CA and other aberrations. This is similar to some DX lenses which can cover FX format.
Jack Dahlgren:
--- Quote from: Roland Vink on April 08, 2021, 03:31:48 ---Fast lenses like the Noct usually have high mechanical vignetting at wide apertures even on their native format, on the larger format it will be even worse. At smaller apertures these lenses can often cover a slightly larger image circle without too much vignetting, although resolution is often poor due to field curvature, coma, CA and other aberrations. This is similar to some DX lenses which can cover FX format.
--- End quote ---
If you watch the video it did pretty well. The biggest problem is that there is no lens shutter like there would be in a classic hasselblad lens, and the camera doesn’t have a focal plane shutter so it uses a rather slow electronic shutter - apparently taking about 1/3 second to scan out. Makes it useless for anything that moves.
John Geerts:
--- Quote from: Jack Dahlgren on April 08, 2021, 07:15:24 ---If you watch the video it did pretty well. The biggest problem is that there is no lens shutter like there would be in a classic hasselblad lens, and the camera doesn’t have a focal plane shutter so it uses a rather slow electronic shutter - apparently taking about 1/3 second to scan out. Makes it useless for anything that moves.
--- End quote ---
Yup and that actually makes the whole Youtube questionable.
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