Hi Everyone,

I've got a Commercial Ektar 8-inch lens. I've been using it for a while but have a couple of questions.

First, the cable release. Is it supposed to take a standard threaded one? Mine has a socket but doesn't appear to have any threads, so just trying to figure out if that is normal or if my copy is defective somehow. I just use the lever to release the shutter.

Second, the Series VII filters. I understand how they work and there seem to be a lot of adapters to use Series VII filters on a normal threaded lens, but I can't seem to find any that go the other way. Is it possible to adapt regular filters to the Series VII mount somehow so that I can use my normal filters? Or does anyone know the filter thread on the front of the lens?

Regards,
Anthony