I have a 3m 9200 ohp that has a small shadow in the center of the picture. Upon closure inspection it is on the Stage glass almost dead center and appears to be on the back (or underneath side) of the piece of glass. Looks like no trouble as the Fresnel lens is held in by a clip. I just got the thing though and I don't want to tear it up.
Can I just pull the clip back, CAREFULLY remove the lens and set it on a lint free piece of cloth, then clean and/or replace the glass, then put it back together? Anything wierd about OHPs that I need to know?
Can I just pull the clip back, CAREFULLY remove the lens and set it on a lint free piece of cloth, then clean and/or replace the glass, then put it back together? Anything wierd about OHPs that I need to know?