Nope. No mirror lenses have apertures that I've ever heard of . There
was a thread about this some months ago to which I contributed one of my
lengthy treatises as to why that was likely so from an opto/mechanical
standpoint. Nice lens, though.
Moose
Jeff Keller wrote:
This is a brand new Manual Focus Sigma 600mm F8 Zen Finish Mirror
Lens --- Aperture and focusing snappy and smooth..
I'll bet Moose knows ... by some odd chance do these have an aperture?
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