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jrw11
professor emeritus
Reged: 06/09/07
Posts: 501
Loc: U.S.A.
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I know that the beattie focusing screens make the image brighter. But, would installing one be helpful in astrophotograpy?
-------------------- Celestron C6n -HD Reflector
dual axis drive motors added
Orion 80mm Short tube refractor
Skyscout
Early 70's Pentax 7x50
Garrett Optical 12x60
Garrett Optical 15x70
Oberwerk 20x80 Standards
Canon Rebel Ti (film)
4 Minolta Srt cameras
Mamiya RB67 Pro-s with 180 lens
127mm KL lens for RB, Bellows hood for RB67
120 and 220 film backs
Cambo SCII 4x5 view camera
over 50 other film cameras
several eyepieces
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