Replacing Ebony Cover glass

[Keith Pitman]

Keith,

Why would thickness matter? The focus is on the etched side of the glass which is towards the lens.

Gale

The cover glass still needs to fit into the depth of the space, preferably with the original screws. Usually the cover glass is quite thin; a piece of "single strength" glass could extend beyond the back of the viewing frame.

[Steve Hamley]

There's plenty of room for the cover glass. Remember the Ebony wide angle fresnel is a supplemental fresnel that goes on top of the existing fresnel. So there's room for two fresnels and a cover glass in the frame.

Cheers, Steve