4x5 Ground Glass Frame for Use with a Lomography Instant Back

THIS IS A WORK IN PROGRESS PROJECT.

In one of my recent videos I share how I shot with the 4×5 instant back (Lomograflok ) from Lomography. In that video I shot with my Chamonix 4×5 camera and I mentioned that we need to use a spacer every time we compose a shot.

That is to take into account that different film plane on this back. The Instax Wide film plane is further back by 19.4mm from the usual sheet film plane. Another point I mentioned is that if I were to mount this back on the camera I would need to remove the ground glass frame. The Chamonix ground glass frame is easy to put back ( one hand to slide the frame in)but difficult to remove ( you need 2 hands to lift out the 2 spring arms) and that is kind of troublesome if you have to do that for every shot.

So I decided to 3D printed a ground glass frame that already has the spacer built in and it’s also much easier to remove and put back. The new ground glass frame that I 3D printed is very similar in size to the spacer that came with the back. The only difference is the height which is about four mm higher to take into into account where the ground glass should be. The other thing I added was the groove so the long sides so that it can be locked down. In contrast, there is no groove on the original spacer because will be held in place when you insert it into the groundglass frame

Refer to my blog post for more information and video