is a 35mm zoom lens a 35mm zoom lens when using an adapter?

Coco Bermudez

Coco Bermudez

Well-known member
is a 35mm zoom lens a 35mm zoom lens?

How does it work...a 35mm Nikon zoom lens does not act like 35mm cinema lens does it? What are the technical aspects of both lenses?
 
What do you mean by act different? Produce different images or function differently physically? On both you're going to be able to zoom to different focal lengths so in that regard a cinema zoom and a still photo zoom act the same.

Still photo zooms sometimes have a shorter focus throw on the focus ring (only turns halfway or a quarter way to get from close-focus to infinity) than cinema lenses. And cinema lenses more often have smooth spinning aperture rings whereas still photo zooms have click stops.

Is this what you were wanted to know?
 
Film lenses also perform focus pulls 'better' than (most) still lenses.
When I say 'better' i'm refering to the lesser shift in frame when changing focus. On most still lenses, the image changes - "breathing" http://en.wikipedia.org/wiki/Breathing_(lens)
This is more noticeable on longer lenses (larger focal lengths) as the contents of the frame is greater when "breathing" occurs.

Film lenses are often faster lenses, meaning their max aperture is around f.1.4 which allows you to expose in lower light. Also decresing the depth of field which means a shallower focus, often desired in emphasising particular points of an image (eg: a character in a busy composition).
 
Also, film lens mounts are less popular with this area of 35mm adapter products, so mounts for them will cost more than the nikon/canon mounts.
 
I meant if they function differently. I have a 16mm lens and when I zoom in with the lens it pretty much acts like any fujinon or canon I have attached to a shoulder cam. I have a couple of nikon zoom lenses but they act nothing like the film lenses.
 
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