Lumenlab > How Do I Find Fl For Precon?

Full Version: How Do I Find Fl For Precon?

Lumenlab > Audio Video Sciences > Projector Builder > Projector Technical Support

marto

Oct 22 2006, 01:23 PM

No doubt there is a post somewhere explaining how to find the focal length of a pre condenser lens, but I can't find it.

I have a couple of lenses taken from a photo enlarger and would like to know there specs.

Can someone please point me in the right direction.

Kryptonian

Oct 22 2006, 02:41 PM

Are you looking for the precondenser calculater?

here it is.

Calc.

marto

Oct 23 2006, 12:22 AM

QUOTE (Kryptonian @ Oct 23 2006, 12:41 AM)

Are you looking for the precondenser calculater?

here it is.

Calc.

Thats the one, Thanks

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