Rodenstock Imagon 250mm H5.8 q2 not the more common 1/4"

not the more common 1/4" thread

I feel I should add

For Minolta or Sony cameras with a proprietary "iISO" flash shoes- and corresponding flashes- this TTL extension cord will provide 2-3 feet of extension for off-camera use

Also of note: a Series 6 adapter ring has been attached to this lens with an adhesive

Rodenstock Imagon 250mm H5.8 q2 not the more common 1/4"This Rodenstock Imagon 250mm H5. 8 lens is a relatively modern version of a classic soft focus lens, combining a simple doublet with interchangeable multi aperture discs for softness control. You'll notice the "H5. 8" designation, which is meant to represent effective maximum aperture when the distinctive aperture discs are used: they've got a bunch of little holes instead of a standard single aperture, so I'm guessing that the "H" stands for "holes,"