Canon LTM miracle viewfinder cure (P)

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Canon M39 M39 screw mount bodies/lenses

djon

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Viewfinders on two Ps made the world look hazy in super-sharp, super-bright, high altitude light. So I did a religious ceremony:

1) With a jeweler's screwdriver (NOT the junk that comes with multiple blades and one holder because those mangle screw slots due to their poor tempering) remove the tiny black screw that holds the black frame at the rear of the viewfinder..DO IT ON A SURFACE THAT WON'T EAT THE SCREW or let it bounce if you drop it. Don't improvise, don't mangle the screw with an inappropriate screw driver. Put the screw in a safe place where you won't bump into it and lose it.

2) Using your thumb, slip the black frame to the right (you're facing the back of the camera). It'll probably resist because of years of accumulated crud, but believe and do...it's a sort of lateral bayonet fitting, nothing fancy. Lift it out (easy if you got it to move about 1/8")

3) AVOIDING letting that crud to fall into the prisms, wipe it from the chrome with damp fabric or lens cleaner tissue.

4) Make a Photoflo solution, a drop to a few ounces. Dishwashing liquid is probably ok if it doesn't contain lanolin (grease).

5) Using lens cleaning tissue (remember that stuff?) and that Photoflo solution, thoroughly clean *BOTH* sides of the rectangular glass plate (which may be optically coated..it's good glass) that lives in the black frame. Inspect closely.

6) Reassemble. HUGE difference. :angel:

7) Send me $50.

My L1 also benefitted by cleaning of its 3 exposed peepers, front and rear.
 
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