This page describes my effort at finding a way to mount the Rollei electronic
shutter size 0 to the inside side of an Arca Swiss lensboard. The idea is to
allow the camera to get lenses like the 24mm Schneider digitar close enough to
a digital back mounted on the panshot. Since the shutter speed and aperture
are set electronically, there's no need for it to be outside the camera.
Basically, I'm doing this by means of an adapter that screws onto the front of the
shutter and fits through the hole in the lens board. To assemble the adapter to
the front of the shutter, remove the five M1.7 tiny metric screws that hold the
front cover plate onto the shutter and then put the adapter over that plate so that
the holes in the adapter line up with the holes in the plate, and then screw it all
down with 5 slightly longer (half centimeter) M1.7 screws. In addition to telling me
the size of the screws Rollei told me that the minimum inner diameter for an adapter
of this sort is 73mm. SK Grimes is going to machine me a few with the same threads as
a 77mm filter on the outside, which will mean a 77mm custom hole in the lens board.
Owing to a communications error, I tried an adapter of this sort with Copal 3 sized
threads on the outside, and the hole in the middle didn't permit the installation of
one of my Rodenstock Apo-Sironar digital lenses to the shutter. I don't yet own the
fameous 24mm Schneider digitar. Below are a couple of photos I took of this electronic
shutter with an Arca Swiss format frame reducer and an Arca Swiss 6x9 format frame sitting
on top of it. Click on them for larger versions. It's clear to me that it would be
impossible to assemble a 110mm x 110mm lens board for 6x9 onto a camera with this shutter
mounted to the inside of it. Both the lens board and the shutter are too big to fit through
the hole. So, I'm having the custom hole made in a 171mm x 171mm lens board for 4x5 which
should be no problem for use with the camera as I have it configured.
Here's the shutter from the front with the screws removed, and also opened up.
These photos aren't really pertinent to the project, but I thought they migh be
of interest anyways.
Here's the shutter with the adapter installed.
Here's the shutter installed on the lens board, from the front, from the back, and from the
front with the front lens element of a Rodenstock 35mm Apo-Sironar digital lens installed.
When I get the connecter through the board added, I'll add more pictures.
Here's a link back.