Here's my trick to adapt the mirror-less camera with the worst reputation ever (not justified in my mind), the Canon EOS-M to my Plaubel PECO Supra large format view camera.
Before going into any details, let's have a look why anyone would want to do that...
Large format cameras can provide a unique look, with all the possibilities of raise/fall, shift and tilt in many direction.
Today, when you are lucky, large format cameras come really cheap. So do their lenses, in particular when the shutter is not functioning properly anymore.
Here's the good thing, when using a modern digital back, be it a DSLR or a mirror-less camera, the shutter is in the camera, in front of the sensor. (Well in most cases at least, known exception: Pentax Q). So, we don't need a functioning shutter for the following project: Add a digital camera body to a large format camera.
For my approach, this is what you need:
A lens board for a Copal #1 shutter
|Copal #1 lens board|
M42 macro rings, 1 short, 1 long
|M42 macro rings|
The short M42 ring mount to the inside of the camera (see photo below), while the longer ring counter-screws on the outside.
|In the recessed lens plate|
|Front side view|
A regular M42/EOS adapter is too short to clear the camera from the recessed lens board.
Here are 3 options:
- get another M42 macro-ring
- get a non-recessed Copal #1 lens board
- fabricate a Copal #1 lens board
For now, the setup works just fine, although I do prefer using large format film with my large format cameras.