p.1 #3 · Ask Zeiss for ZE EOS focus confirm lenses
OK - we all want auto-aperture, but many of us are prepared to live without it. I know you are ;-)
The problem with auto-aperture is that it requires the lens to have electronic motors for stopping down the aperture, which makes it a significantly different design to the others. I think we might have a greater chance of success if we explain that we are prepared to live without auto-aperture. That may well be the reason there is no Zeiss ZE line.
Jul 24, 2008 at 06:46 AM
Andi Dietrich Offline [X]
p.1 #4 · Ask Zeiss for ZE EOS focus confirm lenses
coincidentally, i asked them this morning *when* the Z lenses will be available with a EOS mount, after all Zeiss mentioned before, that they are working on to make them available with more mounts. No response so far
p.1 #8 · Ask Zeiss for ZE EOS focus confirm lenses
I for a change want the focusing and aperture rings to turn in the same way as the old Contax lenses. I really do not have any use for AF confirm, as I compose before focusing. As for the auto-aperture, I would prefer to have it but can live without it, as I discovered some advantages to shooting with manual stop down.
p.1 #9 · Ask Zeiss for ZE EOS focus confirm lenses
I'd settle for focus confirm plus communication of the actual shooting aperture and focal length back to the camera. We've seen here in many threads how focus confirm adaptors give different metering results than the plain adaptors so passing all the right numbers back may result in perfect metering.
p.1 #15 · Ask Zeiss for ZE EOS focus confirm lenses
cogitech wrote:
Yes (although, it depends on which Nikon you stick them on. AFAIK only the D200/300 and D1/2/3 series support the mechanical auto aperture control).
Wrong. All Nikons starting from WAY back will actuate the aperture. You will have to use the aperture ring to set the aperture on all of them however. The Dx00 and Dx series are the only ones that will read the aperture setting and meter appropriately however.
p.1 #17 · Ask Zeiss for ZE EOS focus confirm lenses
Pardon my ignorance here, but how do ZF lenses work on Nikon bodies? Is it a case of physically setting the lens to the smallest aperture and then choosing the aperture you want via the camera body?
p.1 #18 · Ask Zeiss for ZE EOS focus confirm lenses
StevenPA wrote:
Pardon my ignorance here, but how do ZF lenses work on Nikon bodies? Is it a case of physically setting the lens to the smallest aperture and then choosing the aperture you want via the camera body?
I assume, in the same way that AIS lenses work on (some) Nikon bodies. You set the aperture on the lens (blades stay open). The camera knows what aperture you've set, due to the coupling, and it meters wide open and compensates accordingly. When you fire, the camera kicks the lever to stop down the blades.
Edited by cogitech on Jul 24, 2008 at 11:33 AM GMT
