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

This is topic 380mm mirror focal lenght in Lamphouse with vertical XBO bulb in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.

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Posted by Marin Zorica (Member # 1716) on 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!

Posted by Jacek Dejnarowicz (Member # 3062) on 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