Making a Visoflex mask for the M8

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jaapv

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This is how I did it:
Needed :
Stiff clear plastic, about 0.3 mm thick. I used the entrance-pass holder to the Photokina, but many hospitals use similar stuff to put their appointment cards in, for instance.
Millimetre paper
Sellotape
Scalpel no 15 or some very sharp, small hobbyknife
Jewellers screwdriver 3 mm.
Some kind of loupe to work under (I used surgical telescope glasses)
Piece of cardboard to protect your table top when cutting, for domestic peace's sake ;)

I stuck a piece of plastic to the millimetre paper and cut a rectangle of 27x18 mm. This is surprisingly easy to do freehand.
Then I cut the outside of the mask to 37x25 mm, centering the inner window.
I opened up the pentaprism housing of the Visoflex (don't worry, there is nothing difficult or critical in reassembling) by unscrewing the six screws on the bottom. The lens inside can remain in its place, but if it does fall out, simply put back.
Sellotape the bottom plate to the millimetre paper. the inside up and aligning it with the lines.
Now line up the mask in the round depression, use small pieces of Sellotape (outside the viewfinder window of course, otherwise you'll see them afterwards) to fix it exactly centered in your viewfinder window and cut off the corners to make it lay flat in the depression.
Reassemble the pentaprism housing, thereby fixing the mask firmly in place.
When using the Visoflex now you'll see narrow black lines framing the sensor format of the M8, making it compatible with film and digital.
The nice thing about putting it in the pentaprism housing is that you are working after the matte screen, thus having no chance of messing up the calibration of the Visoflex.
 
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