Adapter for Sony-E or Canon EF Lens to Arri S (or B) Camera Mount?

[Craig Lindley]

As per the title, does anyone know where one of these might be obtained? Covering either 16mm or 35mm Arri camera apertures is of interest.

The reverse, adapters for Arri S lens to modern digital cine camera (Sony-E, EF, PL etc.) are easy to find, but I haven't been able to find anything that goes in the other direction.

This is a bit surprising, since there must still be a lot of us using Arri film cameras with pre-PL mounts.

thanks and best regards, Craig

[Duncan Brown]

When you can find lots of adapters in one direction, and none in the other, it usually means there's a substantial difference in the FFD (flange focal distance) between the two mounts.  You can add distance from a lens easily enough with an adapter, but subtracting it gets quite a bit trickier, especially when the mount hole sizes are very different.  Hard to get a big EF lens, with an FFD of 44mm that distance away from the film plane of an Arri-S mount camera, whose much smaller diameter flange sits 52mm away.

Duncan