5 replies to this topic

[lscape]

Can anybody advise which adapter will allow you to set the aperture and have the camera select the shutter speed.
Is the camera capable of this function. I have selection of Nikon and and Zeiss lenses i would like too use in aperture priority.

[daniel.y]

usually the aperture value is set on the adapted lens itself.

However there are some specific adapters e.g. for Canon EF and Nikon G lenses that has aperture control built into the adapter (which is nothing more than aperture blades with a control lever).

Older Nikon lenses (non-G) have aperture rings just like native XF lenses... you just need to get a dummy Nikon-XF adapter.

All Zeiss lenses (not referring to any Sony Alpha mount) have aperture rings on the lens.

[Arjay]

Theoretically, any adapter should do as long as the lens allows you to set the aperture and the adapter is forcing the lens to stop down to its working aperture. The idea is that you stop down the lens to a working aperture and the camera is them measuring the transmitted light (in "shoot without lens" mode), deriving a suitable shutter speed in the process.

Nikon lenses of the "G" series do not feature an aperture ring; their apertures are normally controlled electrically. IIRC, there is a Kipon adapter that features a mechanical device that can stop down these lenses, although its aperture ring is not calibrated for specific aperture values. This means you can use "G" lenses, but if you stop them down, you won't know which aperture you'll effectively have achieved.

[lscape]

Theoretically, any adapter should do as long as the lens allows you to set the aperture and the adapter is forcing the lens to stop down to its working aperture. The idea is that you stop down the lens to a working aperture and the camera is them measuring the transmitted light (in "shoot without lens" mode), deriving a suitable shutter speed in the process.

Nikon lenses of the "G" series do not feature an aperture ring; their apertures are normally controlled electrically. IIRC, there is a Kipon adapter that features a mechanical device that can stop down these lenses, although its aperture ring is not calibrated for specific aperture values. This means you can use "G" lenses, but if you stop them down, you won't know which aperture you'll effectively have achieved.

[lscape]

Thank you for your replys. All the lenses i use have a manual aperture ring but if i set the aperture it does not show anywhere in the camera,i guess this is because the is no electronics from the adapter to the camera. Also i am unable to determine
the shutter speed as it does not show properly. When you change the aperture the shutter speed does not alter.

[Arjay]

Also i am unable to determine the shutter speed as it does not show properly. When you change the aperture the shutter speed does not alter.

Set the cameras shutter speed wheel to A, and the camera will correctly set and display shutter speed.