Inconsistent aperture rings

Started Apr 2, 2014 | Discussions thread
ljclark Senior Member • Posts: 2,410
Re: REAL Answer? Really? Really, Really.

forpetessake wrote:

ljclark wrote:

It has no markings because there are no stops to the aperture ring. It just turns and turns -- either direction. It does click.

This is an internal design decision and I suspect the diaphragm is deeply buried in the lens body and there is no physical connection. Someone who understands switch logic can probably explain this better than me.

All Fuji lenses have aperture by wire, there is no need to have a mechanical connection to the diaphragm.

You are correct.  The aperture rings are functionally just another command dial.  The difference with the primes is that the lens senses the position of the aperture ring.  With the three Fuji zooms I have, the lens senses movement of the aperture (or faux-perture) ring.  I understand that reasoning for zoom lenses that are not constant aperture.  I don't understand the reasoning for a lens that is constant aperture.

(Doesn't matter right now because my 10-24mm is defective.)

 ljclark's gear list:ljclark's gear list
Nikon D500 Fujifilm X-Pro2 Nikon AF-S Nikkor 70-200mm f/2.8G ED VR II Sigma 120-300mm F2.8 DG OS HSM Fujifilm XF 10-24mm F4 R OIS +38 more
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow