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| RE: I Need Help Identifying Glass!
Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Robert May on August 3, 2000 16:47:16 UTC |
Three lenses? Hmm, sounds like you got the lenses out of the three colors of the projector. You will find that a positive lens is probably going to be BK7 or K5 (both are about the cheapest optical glass) and you are not going to find a negative lens in the group so you aren`t going to find any flint glass in there. Those lenses need to focus only one color so there is no real need to do any color correction on them.
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