Where should I look for a cheap large-diameter telescope mirror? Answered
I'm looking for an inexpensive telescope mirror to attempt some DIY Schlieren photography. I don't need a flawless one that you would put in a telescope and use in an observatory, I'm looking for the one that fell off the back of an astronomer's truck on the way up the mountain and got a scratch down one side and a nick in the silvering to make it worthless for astronomical observing. Any handy "old junk telescope parts" websites out there?
Or better yet, does anyone reading this have a decrepit old mirror sitting in their garage waiting for me to buy it from them?