View Full Version : Plate holder conversion

08-28-2012, 01:50 PM
Not liking the usual method for converting a film holder to a plate holder I set out to try something different. The typical conversion involves cutting through the center divider and then placing wire in the corners to support the plate. I didn't like this for a couple reasons - first, I thought it wasted some size capabilities, and second, I didn't like the look of the wire marks in the corner of the plates. I tore apart a regular 4x5 film holder to get an idea of how they are put together. From there I came up with a design based on a dry plate holder a friend lent me. It only takes a knife and dremel or small drill to complete and uses a plate that is a full 4"x5", not the usual 3.5"x4.5" the other style conversion leaves you with. There is no going through the center panel, so you have two chances to get it right. I have put up photos and instructions on my website.


08-28-2012, 03:19 PM
I'm thinking that the plane of focus will be in the wrong place. The plate is thicker than film. Are you making adjustments to the camera to allow for this?

08-28-2012, 03:39 PM
Good point! I suppose I should have mentioned - I have an In Camera Industries plate holder (4x5, which takes a full 4"x5" plate) for my field camera, but it is too thick to fit in the slot for a 4x5 film holder I designed into my pinhole camera. I needed to convert a regular thickness film holder to fit in there. So, while you are technically correct, since I am using it in my pinhole cam, the difference is meaningless.

08-29-2012, 05:11 PM
Makes sense!