Chris T wrote:
Judging from reading other Topic Posts of late, I'm not the only one who confuses Constant Aperture and Fixed Aperture. The latter, of course, refers to Reflex Mirror Lenses, and the like. The former - Constant Aperture - just refers to the fact the fastest aperture (f2.8 for instance) doesn't slide up to be f5.6 or f6.3 or something. Many lenses (primarily, zooms) do not stay at f2.8 or f3.5, even - but stop down to a slower maximum aperture as you zoom in. Judging from reading other posts, some are of the opinion the Constant Aperture of f2.8 - means the lens will maintain that aperture, regardless of the focal length of the lens in use. Now, clarified ....
Judging from reading other Topic Posts of late, I'... (
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I agree! You do seem confused on this issue. You ARE good at missinterpreting people trying to clarify it for you. Pretty simple concept.