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Author Topic: Superior Quartz Lamps Jack Ondracek Film God Posts: 2348 From: Port Orchard, WA, USA Registered: Oct 2002 posted 06-09-2006 11:23 AM                        quote: Richard Hamilton What kind of lamphouses? That sounds pretty expensive. The Big Sky dichroics. Those things focus tighter than anything I've ever used out here. With the extra filter in front, they don't pass a lot of heat, either... just a little spendy, though. I have 3 of those lamphouses here, so I figured having a spare on the shelf was probably a good idea. As for cost... few years ago, I bought some reflectors for the Super Lume-X. They were around $900 back then. Just after I bought them, I was told that Strong increased their prices.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 06-09-2006 03:39 PM                     quote: William Phillips Ive also been looking at LTI lamps. ...look somewhere else .. save your money... (and do we remember those horrible ORC/Perkin Elmer bulbs? these bulbs are even better than LTI's .. if that means anything..) .. for Christies, Osrams ..and it looks like Superior bulbs..(since I'm not familar with them..) Sorry, not impressed with LTI's at all! Even with the Helios bulbs. Yes, I DO like the light output-excellent color output for bright and full contrast screens, BUT....they are very poor bulbs..the arc will flicker when new...and eventually flicker within a thousand hours..and horribly after 1200 hours..for a 2k bulb. The Helios that I used, died just over 2300 hrs - 800 hrs over warranty..FAR from what a Christie, Osram or others would go before dying.. The standard LTI's are just plain crap. If you get these, plan on warranty returns.... What I noticed on the LTI's is the tungsten composition for the anode plug - it seems a lot more of a course material than the others- just not as dense as with the others. When it burns, it actually creates a crater in the middle of the tungsten, thus the flame will begin to wander on the outside edge of the crater in the tungsten. Then, the tungsten develops hairline cracks running lengthwise of the plug, causing complete failure. Also, with this poor density/quality of the tungsten, the bulb really collects the burnoff on the inside of the envelope in a short time, thus needing more rotation than necessary... Stay away from LTI bulbs...  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 06-09-2006 05:32 PM                     Come on Monte...stop beating around the bush...what do you really think?  |  IP: Logged Stephen Furley Film God Posts: 3059 From: Coulsdon, Croydon, England Registered: May 2002 posted 06-11-2006 04:08 AM                     Never heard of LTI; who are they? Osram seem to be by far the most common here. One thing I like about carbons; there's no risk of them exploding Haven't been able to run them for many years now in a public cinema. Still very occasionally get to run them elsewhere.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 06-11-2006 11:23 PM                     Site for you to look at Stephen ... www.ltilamps.com on these bulbs... Agree..no explosions with carbons...and fun to work with. -Monte  |  IP: Logged Bill Enos Film God Posts: 2081 From: Richmond, Virginia, USA Registered: Apr 2000 posted 06-18-2006 08:14 PM                     No explosions, but how about the carcinogenic dust, disposing of stubs, erratic quality of the carbons, flicker due to same, cost is a couple or three times higher, worn out feed mechanisms etc. They've been gone from here since Oct. 15, 01, and not missed at all. Customers commented the first night of the xenons on how much better the picture is. One of the things that has amazed me from the start is how much people in this business whine about how good the old days were. I'd rather have my nuts in a vise than go back to carbons.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 06-18-2006 11:17 PM                     Yea Bill LOL ... Since National Arc Carbons quit making the "good quality" of carbon... Now, there are those who are now stuck with those cheesy Marble carbons...being practically the only ones out there that still make the rods...and sell them at a horrendous price for a case of positives...which is a fraction of the duration of what a xenon bulb can last..and being tons more expensive...  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 06-19-2006 06:30 AM                     Carbons are certainly more work but they absolutely beat Xenon on quality and quantity (per watt of power) of light they output. In my years of running carbons, they were always superior...but this was before the "dark times" when quality carbons were still available.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 06-19-2006 07:14 AM                     quote: Steve Guttag Carbons are certainly more work but they absolutely beat Xenon on quality and quantity (per watt of power) of light they output. I agree that arc looks ALOT better but definately doesn't even come close in per watt of power vs. light output... not even close to modern Xenon especially if you throw a 90% efficient switching xenon power supply into the equation as compared to the 35 to 40% efficient arc rectifier.. or even lower efficiency M.G. set... then there is the power wasting ballast in M.G. based arc system. Modern Xenon can and will continue to improve and will also continue to put out more lumens per watt consumed than any arc could. I've had several instances in the light level department where a 2kw xenon beat the crap out of a Magnarc running at full tilt and one instance where a 3kw in a Xenex-1 beat the crap out of a Futura running at 135 amps. Mark [ 06-19-2006, 08:22 AM: Message edited by: Mark Gulbrandsen ]  |  IP: Logged John Pytlak Film God Posts: 9987 From: Rochester, NY 14650-1922 Registered: Jan 2000 posted 06-19-2006 10:45 AM                        The spectral output of high intensity carbon arc is much like daylight, with no significant gaps or peaks as a function of wavelength. Xenon arc approximates daylight illumination, but is much more "peaky" than carbon arc. That's why some prefer the "look" of film projected with a carbon arc illuminant.  |  IP: Logged Dennis J. Losco Film Handler Posts: 39 From: Phillipsburg, NJ, USA Registered: Jul 2002 posted 08-10-2006 11:10 AM                        I would like to announce the opening of our brand new 62,000 square foot manufacturing facility. The facility is located at 2701 Baglyos Circle, Bethlehem, PA ...new phone numbers are 610-317-3450 and fax 310-317-3451. I welcome anybody from the industry to stop by so I can give a personal tour. Thank you for all of those supporting our products. We continually strive to improve the quality and service to our customers.  |  IP: Logged Dennis J. Losco Film Handler Posts: 39 From: Phillipsburg, NJ, USA Registered: Jul 2002 posted 03-26-2007 03:33 PM                        I am please announce Superior Quartz Products, Inc. 50th Year Anniversary 1957-2007 see attached link to our press release. http://www.sqpuv.com/PDFs/030607PressRelease.pdf Regards. Dennis Losco  |  IP: Logged

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