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Topic: FP20 with short focal length lens
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Stephen Furley
Film God
Posts: 3059
From: Coulsdon, Croydon, England
Registered: May 2002
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posted 10-29-2006 07:02 AM
quote: Brian Guckian Check the front of the FP20 and see if the front corner of the main frame has been cut away immediately beside the turret.
Some of Philips'/Kinoton's models had(?)/have this feature to accommodate the greater angle of divergence produced by short focal length lenses.
Can we assume that this is the old FP-20, and not the fairly recently introduced FP-20A? If it is the old FP-20, then I don't think you'll find the cut-out in the corner of the column, this was on the later machines. However, the older machines had smaller columns than the current ones do. I'm doubtful that you'd get away with a 32mm, that's a very short lens.
David, I'm quite surprised that you couldn't use a 45mm; I don't think I've ever used anything shorter than a 50 in one, but the beam was well clear of the column. Maybe even within the older projectors there was some variation in the column size? I've never actually measured it.
I've never used a machine with a turret, but the lens would still have to be in the same position, so that shouldn't make any difference to the shortest lens which can be used.
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