Posts: 520
From: Winnipeg, Manitoba, Canada
Registered: Nov 2012
posted October 01, 2014 09:03 AM
Hell all, once again, I come to you for advice and guidance !!! I am thinking about starting up a small 16mm cinema and have been hearing a lot about xenon projectors lately. I looked up a few on EBay and found them to be rather pricey. Is the price in unison with the brightness difference over a Halogen machine to ensure a crisp picture with a long throw projection or...? I already have an EIKI SSL-O (250 watt Halogen lamp) so please compare with the same to give me an idea ? Thanks once more to you all and happy hump day !!!
Posts: 540
From: Aldershot, Hampshire, UK
Registered: Nov 2013
posted October 01, 2014 09:45 AM
Hi Elyas, As a rough rule of thumb, the low-end Xenon projectors provide 3 times the light output of the same type of projector with the 250W lamp so you can have a picture 3 times the area for the same brightness. This is equivalent to 1.7 times wider and taller.
Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007
posted October 01, 2014 10:46 AM
Not much more of an improvement in picture size for a lot more money, plus the cost of lamp replacement. I assume the light from a xenon will have a higher temperature than that of a halogen lamp which could make it appear brighter.
posted October 01, 2014 04:47 PM
Hi Elyas do you have a xenophot 259 bulb in as adds equivelant of 50 watts more and a brighter whiter light so like 300 watt really. They are great the Xenophots.
Also can you get a decent lens with more light going through.
For reliability the std machine you have is much better really.
Posts: 520
From: Winnipeg, Manitoba, Canada
Registered: Nov 2012
posted October 01, 2014 05:22 PM
Thanks a lot guys, you're always a tremendous amount of help !!! Mark, can I use the Xenophot for my Eiki? I'll look it up on ebay in the mean time ...
posted October 01, 2014 09:32 PM
Elyas, you can indeed use a Xenophot ELC for the Eiki, however, in my tests a Ushio bulb was brighter still. Surprise!
Posts: 3216
From: The Projection Box
Registered: Nov 2006
posted October 02, 2014 06:14 AM
Interesting take on lamps from everyone. For what its worth I absolutely swear by the GE ELC 24v 250W USA produced. A bright long lasting lamp I have found.
By the way if I'm just checking a film in semi daylight I usually change the lamp to a 'stage lighting or pool lighting' type usually about half the price.
Posts: 5895
From: Bristol. United Kingdom
Registered: Oct 2007
posted October 02, 2014 12:02 PM
Note that the link to an USHIO lamp in Mark's posting is for a long life disco lamp, in view of its long life its output is considerable lower than that of an ELC designed for a film projector.
Posts: 520
From: Winnipeg, Manitoba, Canada
Registered: Nov 2012
posted October 03, 2014 08:42 AM
Thanks Bill, I noticed that it's got a way shorter life span than my current bulb of 300 hrs. Still, I could just use it for audience screenings !!! Thanks a bunch and have yourself a great weekend !!!