Most people use the standard 220,330mm ohp fresnels. Diagonally through a 15' lcd you need to see 60.5 degrees with the 330mm side. This explains to me why I never got a triplet to work well. I'm using a ohp lens. Most cooke triplets are designed for about 45 degrees.
Could someone explain how a cheap standard triplet can handle this?
Could someone explain how a cheap standard triplet can handle this?
This is kind of the general form of a discussion that has happened on a specific lens. Some people say this it works and some don't so I was looking for a theory on how it would work. Maybe they are engineered to 50 +/- 5 degrees and kind of work for most of the screen for some lucky people?
The new 3dlens fresnels will fix this problem for 15" and 17" LCDs i think. Then the hunt will be for a cheap long fl triplet. I think it's fairly reasonable to think finding that triplet will be easier than finding a cheap very wide angle triplet.
Do people currently ignore the corners, use longer fresnels, make custom lens combinations, pay for telephoto triplets?
The new 3dlens fresnels will fix this problem for 15" and 17" LCDs i think. Then the hunt will be for a cheap long fl triplet. I think it's fairly reasonable to think finding that triplet will be easier than finding a cheap very wide angle triplet.
Do people currently ignore the corners, use longer fresnels, make custom lens combinations, pay for telephoto triplets?
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