The Steps

parts & labor
what's needed to get the job done

basics of function
overview of how to use the lens and shutter

the back, the strap, the finder
remove useless vintage roll-film parts; finder

lensboard swap
remove both lensboard assemblies

ready the body
remove leather; cut the side

ready the back
fitting the packfilm back; odds n ends

acquiring a 900 finder
removal & appropriation

fitting the finder
cut, fill, drill & fit

reset infinity
setting focus stop & tweaking finder

finishing touches
back door, odds n ends

completed
admire the work

Finishing Touches

The last dirty part of this conversion is the cutting the original back of the camera into a small compartment door.

There is no need for all this extra crap inside the door. Remove the 4 screws holding the red switch along with all the rivets. Drill or just yank.

Remove the leather pieces and use them to trace new ones.

Measure the width of the gap between the camera's left side and the new film back. Be careful when cutting to keep it as straight as possible. Grinding or filing to flush is your best bet, so be close but not too close. While I was at it, I thought I should remove that useless red switch.

Once cut you need to fill in the gap and rivet holes. A few layers of body filler and some cursory sanding is all you need, this will be covered with leather so utter smoothness is not required. Test fit the door with a hinge pin in place to prevent any error. File it to flush as needed. Spraypaint the inside flat black.

Fit the new leather and glue it to the door. When it comes to the edge, make a zig-zag pinking shear edge, this will fold over much easier.

Having a nice looking door is pointless if its going to flop open all the time. I've tried using a spring, but it was a pain and dangerous if done improperly. I also tried using a magnet, but it was also a little complicated.

The finest solution I have found is with a small fiction tab attached to the underside of the finder plate. (Thanks Wolf)

Any thin shim of plastic will do, I used a used pack film mask. Glue it in place.

Test to see if the door snaps open and closed. I found that if you file down the edge that meets the tab a little thinner, it works like a charm. Not knife sharp thin, but a nice angle to better slide past the tab.

Replace the finder housing, checking one last time all mirrors and glass are clean and dust free.

Replace the leather strap.

Give the entire camera a good once over, checking for loose parts or things that aren't flush.

You have now completed a:

Model 160 body,

Model 110A lens/shutter,

Model 900 finder,

packfilm,

leather,

hybrid conversion!

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