4x5 film format UNIVERSAL ADAPTER dimensions

The image is of the dimensions for an adapter to 4x5 that can be

fitted to any camera that has enough space in its back for the lens

to illuminate 4x5 format.

 

This presupposes that this camera has a 4x5 lens coverage. This

adapter can be glued, screwed or attached by whatever other means to

the camera back.

 

Nevertheless, one has to be careful that the lens focuses on the

correct film plane, that is, the lens has been properly collimated

for infinity for the camera when using this adapter.

 

Once the adapter is fitted to the camera, by whatever means, goop,

black tape, bath caulk, liquid nails or chewing gum, please make

sure that all light leaks in holes and seams of this adapter are

covered.

 

The uses for this are to convert any suitable camera to 4x5 film

format:

 

 

-- Adaptation to any Pola roll film camera. This can be the 100

series models, 900, 85A...

 

-- Adaptation to any pack film camera, Pola series 100, 200, 300

and 400.

 

-- Any of last century Kodak autographic, 1A, 3A.

 

-- A box with a lens on the front and this adapter in the back.

 

-- A pinhole camera for 4x5 format.

 

...Anything that you can think of that you may want to convert to

4x5.

 

 

This adapter will accommodate:

 

--Grafmatic six-shooter ( with locking plates ).

 

--Regular film holders ( with rubber bands ).

 

--Any sheet film or roll film contraption.

 

--Any photo film holding device which is made for the Graflok back.

 

The adapter is made out of a plate of aircraft grade plywood,

available in the US at A.C Moore. The dimensions of this plate are:

6x12 in with a thickness of 3/8 in. The hole is cut with a fret

saw, keyhole saw, hobby saw. Perhaps this plate can be made of

separate parts joined together to same dimensions.

 

Once the adapter plate is fitted to the camera, suitable spacing

needs to be provided for correct focus. This can be made out of

spacers or whatever comes to mind.

 

These are the dimensions that worked for me. I tried it with

regular film holders and Grafmatic six-shooters and there is no

obstruction of the film opening.

 

I hope that this will be informative to anyone.<div></div>

The following photos are what this adapter looks like in practice.<div></div>

Another wiew of the adapter in a camera.<div></div>

Another...<div></div>

Another view...<div></div>

Here goes another...<div></div>

How to cut the film holder clearance notch.<div></div>

Light trap for adapter and cut for clearing rangefinder cameras.<div></div>

Retaining device for all Graflok type hardware. This is a "slider" that fits in the Grafmatic devices side ridge.<div></div>

Rubber band attachment points for regular film holders.<div></div>

Nice work, Diwan! Got any images from the converted camera yet? Sure, the J66 doesn't have an Ysaron, but it's still not a horrible lens...