This is topic xenon projectors in forum 16mm Forum at 8mm Forum.


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Posted by Adam Deierling (Member # 2307) on July 04, 2014, 11:02 PM:
 
Has anyone ever done a comparison between a xenon elmo cl and a standard cl? Is the light output significantly brighter?
 
Posted by Mark Mander (Member # 340) on July 05, 2014, 02:20 AM:
 
Hi Adam, the light output on the xenon CL is much brighter than the standard machine even though it's the same wattage. I watched a film on a sunny afternoon without drawing the curtains on a xenon and you could see the picture no problem and on my standard machine I would just about see the image. For such a compact machine the xenon is impressive, Mark
 
Posted by Oemer Yalinkilic (Member # 86) on July 05, 2014, 06:35 PM:
 
Definitley, the image looks bright like in a real cinema.
I have one Halogen Elmo 16CL and two 16CL-Xenon projectors and I use only the Xenon projectors.
 
Posted by Paul Mason (Member # 4015) on July 06, 2014, 07:54 AM:
 
A test report in "Movie Maker" in August 1977 found the standard Elmo 16-CL had an output of 540 lumens. A few years later Movie Maker found that a Bell & Howell 1568 with a Gemini lamp had an output of about 1800 lumens. That is three times more, so I would expect a Elmo with a similar 300/350W xenon to equal this. This means the Xenon will give a screen of 3 times the area or 1.73 times wider for the same brightness.

[ July 31, 2014, 03:40 AM: Message edited by: Paul Mason ]
 
Posted by Mitchell Dvoskin (Member # 1183) on July 29, 2014, 03:27 PM:
 
> Bell & Howell 1568 with a GE Marc 300

The B&H 1568 dis not use a Marc 300 bulb, they used the Gemini 350 bulb. Both are mercury vapor arc bulbs, but the Gemini was slightly smaller, different reflector, and slightly brighter.
 
Posted by Paul Mason (Member # 4015) on July 31, 2014, 03:41 AM:
 
Thanks for pointing that out Mitchell. I've corrected the post.
 


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