maicosurtees
Aug 16 2004, 11:17 PM
Brain: can you tell me the focal length of the new (varifocal) lens in inches?
Reason I asking is I using your focal calculator..
I'll be using an 64"x84" screen from Da-Lite (matte white)
BTW how (basic math was not my strong point) how do I determine diag. (height x witdth)?
Thanks and bTW what is the order status (I saving for it and the new frensels)
yorit
Aug 16 2004, 11:30 PM
From the store:
QUOTE
This lens is a varifocus lens with 450mm to 500mm of focal range...
And 1 inch is 25.4mm so that wil be 17.7 to 19.6 inch.
maicosurtees
Aug 16 2004, 11:37 PM
So would roughly 20" be correct?
brainchild
Aug 17 2004, 12:46 AM
There are two variables and everything in between. Use the small number (17.7") for the biggest picture size and use the large number (19.6") for the smallest picture size.
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