Don't see a chance to us AF Nikons at all

[Sebastian Cramer]

I've looked at the tests on the Autofocus Nikons, can anyone tell me how you guys will control iris here? It a bit of a limitation to always shoot wide open... With the slip rings on the autofocus it's also completely impossible to attach a follow focus system. So I guess, the only way is to go with the old manual focus AI and AIS lenses.
I'd love to use the current 12-24mm Nikon AF but how?

[James T Mather]

The red will not control Iris as far as I know - manual is the only option I believe

[Sebastian Cramer]

Well the only thing is most of the new Nikon lenses don't even have a ring anymore for the iris it's all done internally from the camera

[Dominic Jones]

AFAIK the only Nikon lenses that do not have iris rings are the new DX format lenses. It's a shame because in some ways they'd be perfect for the Red, but you should find that all full-frame 35mm AF lenses (plus of course all the manual lenses which are a better choice in most cases any way for this system) will be fine...

[Bruce Allen]

Well, Birger is working on it. AFAIK, the Nikon 70-200mm 2.8 VR is full frame but has no way to manually set f-stop.

Bruce Allen
www.boacinema.com

[Erik Widding]

Important Nikon designators:

"D" - has digital Iris (and other) information available to the camera. Older lenses passed the capabilities of the lens back with a mechanical system. Many if not all "D" lenses still pass the infromation to the camera body mechanically as well as digitally

"G" - like a "D" lens but no mechanical ring to allow for manual iris control. Can't adjust iris without mving the lever from behind the lens mount. No mechanical iris information available for older camera bodies.

"AF" - has a mechanical linkage to the lens to allow a motor in the camera to drive the focus. The Nikon mount that we have in development will not focus these lenses. Manual focusing is possible with all of these lenses.

"AF-S" - has a motor in the lens for focus. Manual focusing is still possible with most (if not all) of the lenses without providing power.

When our Nikon mount comes out you will need to have AF-S lenses to get focus control. and D or G lenses to get iris control.

If you want to use nikon lenses in a full manual mode, before our mount is available, stay away from "G" lenses.

[tj williams]

Hi Birger,
So looking at a 35/70D lens which will manual iris or control through you guys
are all AF lenses AF-S or is that different?

[Ed Watkins]

Sorry to ask what may seem like a silly question, but better to be safe and ask before looking to buy lenses:

Will Nikon lenses with a "D" (digital) iris, that have an iris ring (e.g Nikon 80-200mm f/2.8D ED AF Zoom), still allow you to change the iris aperture manually if you use them with the Red nikon lens mount?