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What does O.P.S Mean on side of my U.O ortho

Started by 1953, 11/23/2008 06:05AM
Posted 11/23/2008 06:05AM Opening Post
Title says it all. It has "O.P.S" stamped on the sloped side of the black top. It was obviously done at the time of manufacture. Not sure what it means.

Can anybody help?


"Don't sweat the petty things and don't pet the sweaty things" 8O
Posted 11/23/2008 06:17AM #1
Hi Jeff,

O.P.S. = Orthoscopic Planetary Series. These were a series of orthos that supposedly had special coatings for enhancing planetary viewing. IIRC, they were only sold for a short period.