Film-Tech Forum ARCHIVE: 380mm mirror focal lenght in Lamphouse with vertical XBO bulb

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Topic: 380mm mirror focal lenght in Lamphouse with vertical XBO bulb

Marin Zorica
Jedi Master Film Handler

Posts: 671
From: Biograd na Moru, Croatia
Registered: May 2003

posted 05-21-2005 12:23 PM

I want know what are focal length of 380mm mirrors, or even better what are distance of mirror to center of lamp, mirror to small miror, mirror to projection doors, and xenon lamp center to projection doors???

I want to know this because i will put 380mm mirror in mine projectors because now is 350mm i must move elements to get good light.

Tnx!

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Jacek Dejnarowicz
Film Handler

Posts: 12
From: Mrzezyno, Zach, Poland
Registered: Mar 2005

posted 05-27-2005 04:39 AM

It depends on how this mirror is curved. Mirrors made by different manufacturers may have different focal lenght. You need to ask manufacturer about it.
Jacek

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