Achromat lens from old zoom at

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Old April 25th, 2007, 08:56 PM   #1
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Join Date: Mar 2007
Location: Charlotte, NC
Posts: 27
Achromat lens from old zoom

I found an old lens sitting around my house, a 2.8f 70-200mm zoom lens if I remember right. Actually all is left of it is only the front couple of lens segments. I Dremmeled the inner rings out from its surrounding aluminum tubing and inside there were two lenses put together separated by 5 or 8mm spacer. I don't know anything about optics, but I can tell the these two work to magnify.

Now, can someone answer me if this lens combo can be used as an Achromat? It's 62mm, coated, can it be used for a 35mm project? I'm looking at Daniel's Schweinert's tutorial, it seems straight forward and inexpensive. How do i measure the diopters? is there a simple way to find the +#?

Yev Belman is offline   Reply

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