As part of getting my new Eastman 2D back into fighting trim, I had to come up with a ground glass. Initially, I followed some online directions that suggested using 5um white aluminum oxide followed by 3um white aluminum oxide and the results were HORRIBLE (absurd hot spot, hard to know exactly when it was in focus, could see the lens aperture through the GG). I then found some 600 grit silicon carbide at a local rock shop and that produced a much better screen. This got me to thinking, is a 600 grit silicon carbide screen as good as it gets (for me)? That led me to wondering about what the manufacturers who produced straight ground glass (no fresnel or other add-ons) who are so loved by the community actually did to produce the results so many people love.
Does anyone know what the production process for the old Satin Snow ground glass or the more recent Steve Hopf ground glass was? From reading old threads on here, I know Hopf's old website had a DIY page but it's long gone. I'd be interested in making a few in either of their methods to compare to the other two I've made and see what I prefer.
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