Aperture/focusing distance changes at different FL for zoom lenses?

Started Mar 21, 2013 | Discussions thread
pavinder
Regular MemberPosts: 213
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Re: Aperture/focusing distance changes at different FL for zoom lenses?
In reply to Martin.au, Mar 21, 2013

Are you after any particular requirements?

As you can imagine, I'd like to have the focusing distance remain as short as possible, and the aperture remain widest as the FL increases.

I know the Panasonic zooms have constant f2.8, but it's the other zooms I'd like to compare.

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