This is topic Super Lumex? in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.
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Posted by Dave Bird (Member # 490) on 06-29-2000, 03:18 PM:
Any opinions on Super Lumex Lamphouses good or bad? How big a bulb could be run single phase? ------------------
Dave Bird
Posted by Brad Miller (Member # 2) on 06-29-2000, 03:53 PM:
Excellent lamphouses. I believe 3000 is the largest you can run single phase, but I could be wrong.
Posted by Mark Gulbrandsen (Member # 72) on 06-29-2000, 04:16 PM:
Actually you can run a 3kw lamp on single phase. There are several options to do that on the market. As far as the Super Lumex goes Strong only reccommends a maximum od a 2500 watt lamp in it. I think the mirror is too small for the larger geometry of a 3kw lamp. There is also,in my opinion not enough volume for proper colling of a lamp that large. Go with a Super 80 or Ultra 80 for that size lamp. Personally I really like the Super Lumex and the console version,the X-90 allot. The mirrors are very unforgiving of slight mis-alignment, and coverage, if carefully set up can be extremely unifirm. The mirror in it may be old stuff, but it works exceptionally well.
Mark
Posted by Dave Bird (Member # 490) on 06-29-2000, 07:37 PM:
Thanks guys, another thing I've wondered (again, slap me if this is a dumb question) does bulb output (brightness) rise constantly the larger the bulb (ie- 4K is twice as bright as 2K) or at different rates. Sorry, but I wonder! Hey, I'm a hobbyist for now, but if I'm going to take the plunge further and buy lamps, how important will that extra 500W be? Thanks.------------------
Dave Bird
Posted by Brad Miller (Member # 2) on 06-29-2000, 08:04 PM:
How big is your screen?
Posted by Dave Bird (Member # 490) on 06-29-2000, 08:19 PM:
Nuttin by nuttin' as we sit. Initially I have a couple of options (outdoors of course) for temporary screens ranging from 16x32' to 24'x48'. This being a rural part of Canada, thankfully the land rush is not on, preserving a fair number of outdoor theatres. The flip side of that, is some seem to (or a forced to) run on single phase.
My inquiries show an average screen to be say 30x60 to 40x80, 200-250 foot throw. They're using 2,500W-3,000W (even some 2,000) with decent results (no ambient light). I was just poking around your wonderful manual section. I really like the Super80's with the ability to run high-end of single-phase at 3K and then perhaps jump up to what seems to be a preferred 4K for outdoor use should 3-phase become available. Sadly, all of the classic indoors are gone around here. Thanks.
------------------
Dave Bird
Posted by Pat Moore (Member # 380) on 06-29-2000, 09:10 PM:
Good luck with the Super Lume-X's -- I have to say they're a favorite of mine, whether I worked for Strong or not. Techinically 2500W is the maximum rated for this lamphouse, both due to reflector size and the smaller volume.
On xenon lamps, light output is pretty much a function of amperage. If you look at the spec's of lamps the total output pretty much follows the amperage curve. There is something to be said about larger lamps -- with a larger arc gap some reflectors will produce more light.
Posted by Dustin Mitchell (Member # 372) on 06-29-2000, 09:43 PM:
Good lamphouse. We've never had a problem with any of ours.
Posted by Russ Kress (Member # 461) on 06-29-2000, 10:34 PM:
Um, I'm running three Super 80's with 4k lamps on single phase (is this bad?). The power supply will not go any higher unless you wire it with three phase.The rest are Super Lumexes with single phased 2k lamps.
They've been reliable for about 20 years (Super Lumexes) and the Super 80's are new.
Russ
Posted by Pat Moore (Member # 380) on 06-30-2000, 06:50 AM:
Yo, Russ;
Potential big problems on those Super 80's trying to run 4kw off of single-phase. Are these Switching Power Supplies? What is the type or model number of the supply? What amperage are you running on those systems? Is three-phase power available?
Single-Phase output should be limited to 3kw (around 110 Amps maximum output).Pat
Posted by John Pytlak (Member # 331) on 06-30-2000, 08:04 AM:
Dave:
A "rule of thumb" for a matte white screen (gain = 1.0) would be to size the lamp at least 5 watts per square foot of the "scope" screen area. This is based on the Strong "Lens Selector and Picture Size Computer". The screen "gain" and the image area are the primary factors in determining the power required to meet the SMPTE screen luminance aim of 16 footlamberts.So a 16 x 38.5 foot matte white screen will need at least 3000 watts. A 20 x 48 foot screen needs at least 5000 watts. A 25 foot high screen needs 70 mm. 
Admittedly, most outdoor screens fall far short of the SMPTE standard, but go for as much light as you can get and afford.
------------------
John P. Pytlak, Senior Technical Specialist
Worldwide Technical Services, Entertainment Imaging
Eastman Kodak Company
Research Labs, Building 69, Room 7419
Rochester, New York, 14650-1922 USA
Tel: 716-477-5325 Fax: 716-722-7243
E-Mail: john.pytlak@kodak.com
Posted by Barry Floyd (Member # 385) on 06-30-2000, 08:23 AM:
Dave,
Did you covince your wife to let you build a screen tower in the back yard? If so.. congrats!! Mine won't budge.I'm seriously considering 4kw 3 phase Xenex II's - three of the last drive-in booths I've visited all had Xenex II's, and there picture looks great.
Posted by Mark Gulbrandsen (Member # 72) on 06-30-2000, 08:43 AM:
The Xenex 2 reflector is pretty good but the rest of the lamphouse and rectifier leaves allot to be desired. The rectifiers do have low ripple and inrush though and I always got great bulb life from them. Ideally, the best way to go is with Strong equipment for overall every day use. I do like Christie but they are a pain in the a** to deal with. They have stupid policys about drop shipping parts. With Christie if you need a part drop shipped they charge the dealer to do that. His discount is typically 15% less than it would be. On the other hand, Strongs parts and customer service is really the best there is in this industry. Sometimes they have replaced parts for us that are way out of warranty. They will bend over backwards to see that you are taken care of. Most other companies in this buisness do not even come close.
Mark
Posted by Tim Reed (Member # 137) on 06-30-2000, 09:32 AM:
Dave:The Super Lumex would do fine on a small drive-in screen. I know several that are in use in that application.
In the past, I've used a Super Lumex at home with just a 100 watt household light bulb suspended in the center. Let me tell you, the reflector in that lamphouse is so efficient, that I could actually watch a picture on my basement wall, in the daytime, with that setup!
------------------
Better Projection Pays!
Posted by Dave Bird (Member # 490) on 06-30-2000, 10:05 AM:
John, thank you. How about 70mm with one of these new 15K bulbs? I know, outdoors something has to give, and my goal will be to be the best I can be. A smaller, well-kept screen and the best for sound and amenities. Film-Guard too! I've read about some paint techniques once used outdoors to get a little gain.Barry, we have a relationship where we pretty much allow each other to go off on our little tangents. I think I could build it here, but I wonder what the reciprocation would be. I think she wants a greenhouse, ever see a clear-backed screen tower? 
Tim, if I said 30x60 with 200' throw for a couple hundred cars, would that fit in with some of the applications you've seen with this lamp? OOPS, my apologies, make that 30x72, I like scope! I see what you mean though, 2.5K with an efficient reflector could be as good as 3K with a worse one, so I should consider that. It would be alot of trouble to get to 3-phase anyway, so 3K is my limit for now.
How big's your yard Barry? ;D
------------------
Dave Bird
Posted by Matt Close (Member # 996) on 11-24-2002, 06:40 PM:
Bumping this up ..... I am thinking of running a 2500W lamp in my super-lumex. It currently runs a 2000W lamp, but no matter how much i 'fine tune' things, I just can't get the picture to look vibrant enough. It seems in the manual that you can use a 2500w lamp, and obviously people on this thread are doing it, but I was concerned that the tag on the back of the lamp-house states 85A max. I would usually run a 2500W lamp at around 90A...... which I thought was the norm for a 2500W lamp..... so what do you guys reckon? ... The recitfier I have is a 3-phase IREM 95A max model. ( heavy to get up the stairs!!!!!! ![[Wink]](wink.gif)
) Should I use this rectfier for 2500W lamps, and would the super-lumex be suitable also?
Just a side-note to this ..... we have a couple of cinemechanica X-2000 lamphouses running off smaller IREM rectifiers, and in the last 2 weeks, a new lamp has been placed in each, and each EXPLODED within 1 day of operation. ![[Eek!]](eek.gif)
The old lamps (whch had run fine for ages), were placed back in and a still running fine ( as fine as a lamp that need replacing anyhow ) ![[Confused]](confused.gif)
Could it be a bad batch of lamps? Supply problems from the power company? I can't find anything obviously wrong with either unit
Any advice with these two issues would be greatly appreciated.
Posted by Gordon McLeod (Member # 33) on 11-24-2002, 06:58 PM:
I have had several brand new lamps go bang almost at once lately all OSRAMS 2K
The super Lumex will take the 2500HS and I have run them right up to 100amps (there max) with no problems
Just make sure you have a good strong exhaust fan as it gets hot
Posted by Matt Close (Member # 996) on 11-24-2002, 07:22 PM:
Gordon .... funny you should say that .... these were both 1600W OSRAM lamps , and it was only a month ago at this location that they had a 2K OSRAM explode also ...... 3 in a month ... not bad .... ![[Frown]](frown.gif)
I have a very sorry looking super-lumex now sitting on the bench... you should see the dents in the reflector!!!
Oh .... and I rang OSRAM .... the reply being along the lines of 'Oh no, that's most unusual ... haven't heard of anything like that happening' hmmmmmmmmmmm ![[Roll Eyes]](rolleyes.gif)
Posted by Gordon McLeod (Member # 33) on 11-24-2002, 10:09 PM:
Even less funny as Osram is no claiming that retroactivly they have no responsability for reflector damage coverage ( considering 2 super lumex's 1 Zeis xenesolIII and a Knisely Xenex 1 all costly reflectors)
I am very disapointed with osram and definitly will not be recomending them again
From now on it is SQP
Posted by Steve Guttag (Member # 268) on 11-24-2002, 11:20 PM:
Osram doesn't warrant the reflector? For shame.
Christie and SQP do.
Steve
Posted by Pat Moore (Member # 380) on 11-26-2002, 09:50 AM:
LTI is another manufacturer that will warrant reflectors in the event of catastrophic failure of the lamp.
Pat
Posted by Jack Ondracek (Member # 1466) on 11-26-2002, 02:57 PM:
I've been running SPQ bulbs for the past couple of years... have been very happy with them... 2k up to 7. Pricing is good, too.
Also just replaced a reflector in a super lume-x. No bulb problems... just tired, old reflectors. It's amazing how these things sneak up on you. You don't realize how much good a new mirror can do ya... especially when looking at the tired old beast & considering higher wattage as a solution.
Posted by Andrew Duggan (Member # 1302) on 11-27-2002, 10:30 PM:
I also replaced a reflector in a super lumex recently & couldn't agree more. I was stunned by how much better everything looked. The old reflector I took out was beaten up to the point where it looked like it was made out of stained glass ![[Smile]](smile.gif)
Wow...running a lamphouse in the basement with a 100 watt bulb...Looks like I might have a new project for the next rainy day...
-Andrew