Good Morning All,
Last night I went to clean the mirror in the 2 inch diagonal that came with my Vintage Meade LX3 - 8 inch scope.
I thought it would go quickly and smoothly until I took off the back. The mirror is mounted into a recessed into the back plate and appears to held in with "cork" shims. Prior to seeing this I planned on cleaning by: place under running water, might add a small amount of dish soap, rinsed off with distilled water when finished, air dry. If you look closely, there is a black speck attached that I'm unsure if that will come off.
My question is, can I wash the mirror while it’s mounted in the back plate? Would that damage the cork? Is the mirror also glued in?
Or, do I gently pry off the mirror from the back plate then clean? Is it tricky to get the mirror back in? Are any witness marks required on the mirror/ plate? Does anyone think in either process will the cork need to be replaced on this 35 year old diagonal? Where do I pick cork up from?
I have experience cleaning mirrors, the secondary on an LX 200, and the primary on a 8 inch Dobson. I wanted to ask on CN since I couldn't find a solid information in the forums/ pics/ youtube/ etc. Thanks, Dan