|
Author
|
Topic: Why would I need a Xenon projector?
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Paul Browning
Phenomenal Film Handler
Posts: 1006
From: West Midlands United Kingdom
Registered: Aug 2011
|
posted February 25, 2018 09:29 AM
Its a subject of much debate on here, I have adapted a hid lamp to do almost the same job as the xenon based gs 1200, and at fraction of the cost of lamp, complete it would cost around £40.00 now, would need some refining, and you can use the reflector from the esc 24v 200w, i have remanufactured the gs xenon reflector now, just need some fettling and bright polishing. The xenon reflector is by now completely shot, no reflective surface at all, this lamp generates a lot of heat, hence the fan running at a higher speed and sounding like a Volcan bomber taxing on the runway......
| IP: Logged
|
|
|
|
Paul Browning
Phenomenal Film Handler
Posts: 1006
From: West Midlands United Kingdom
Registered: Aug 2011
|
posted February 25, 2018 10:47 AM
The hti 150 lamp Dominique can be bought for less than 30 euro's at any disco supplier on line, its what martin lighting have been using for 20 years or more, they were made by Philips originally and now come from china at a fraction of that price, in fact buy the whole martin light use all the electronic ballast that comes with it for less than 100 euro's, any one with a little knowledge could modify this and get the same results. I have already talked about this on the forum, the martin lighting fixtures use a circular aperture roughly the same size as a 16mm gate, so I figured that the reflector and lamp from these units would be already setup to focus most of the light on this gate,
and the lamp used can be a hid 150 lamp to a 250w lamp hid, we have missed a trick here gents, why reinvent the wheel......
| IP: Logged
|
|
|
|
|
|
|
|
Paul Browning
Phenomenal Film Handler
Posts: 1006
From: West Midlands United Kingdom
Registered: Aug 2011
|
posted February 25, 2018 12:38 PM
Hello Colin, martin robo colour, the early one's are just 250watt halogen lamps, robo 11 and 111 use hid lamps, these use a 150w and 250w lamps. The roboscan range also use the 150w hid lamp, and you can get these sometimes cheaper for one off's as most dj's will want multiples of these. The martin acrobat is a 250w halogen lamp lighting effect and if you want to use these for the GS1200, again they can be bought for less than cost the separate components. Philips do a 24v 250watts long life lamp, in fact 500 hours for less than £20.00 on ebay, if you want to go that route, If you want more info just let me know Colin.....
| IP: Logged
|
|
|
|
|
|
Paul Browning
Phenomenal Film Handler
Posts: 1006
From: West Midlands United Kingdom
Registered: Aug 2011
|
posted February 25, 2018 01:56 PM
Alan's point is about the availability of the xenon lamp and more to point cost, will put a lot of people off for sure. This is my point, these hid lamps can be obtained for fraction of the price of the correct xenon lamp for the elmo, and believe it to be the same lamp for the 16mm elmo xenon and reflector. If you obtain the parts to convert your projector for less than the price of one lamp, and you know or know someone who could convert it for you, why not?. I have not done a like for like lamp brightness test Colin but having used both the martin robo color and the xenon GS I would say its at least as bright as the xenon GS, at a fraction of the price. The hid car version is nearly as bright as the beauieu, which is damn bright for a halogen lamped projector, but it was only a three bladed gs not converted to two, which would add a fair bit more light output. If you have gs 1200 Colin, I will send you the kit I made up to try out if you want......
| IP: Logged
|
|
|
|
|
|
Paul Browning
Phenomenal Film Handler
Posts: 1006
From: West Midlands United Kingdom
Registered: Aug 2011
|
posted February 26, 2018 01:10 PM
Hello Colin, the robocolor 111 would probably be bright enough, as this has a 250w hid lamp, and all the parts could transfer to your 35mm projector because you have more space, so that's lamp, reflector, starter ballast, cooling fan, power supply, you may need to adjust the lamp to reflector distance to accommodate the 35mm gate. It probably wouldn't need much adjusting perhaps moving the whole assembly back a tad .....
| IP: Logged
|
|
|
|
Paul Browning
Phenomenal Film Handler
Posts: 1006
From: West Midlands United Kingdom
Registered: Aug 2011
|
posted February 28, 2018 01:25 AM
Hello Alan, I have tried to upload here several times without success and just gave up trying. Mine was just a what if ..., then went from there. I used a blown esc lamp reflector, but I doubt that it could not be done with any other reflector type. I setup a good esc lamp a set distance from a flat surface 90 degrees to the lamp/holder, got a best sharpest circle, measured across this diameter, then setup my modified lamp and holder to the same size and distance, you need to look carefully to avoid "hotspots" with these lamps, I suggest using sun glasses as this light is quite intense once it reaches full brightness and you will see spots before your eyes, be warned..... This lamp was then "glued " temporarily in position and left to set. Once set I used a light meter for test the light output compared to my beaulieu, just shy of it, but as bright as the esc original lamp output, but better colour whiter light and much cheaper and easier to find than the now esc Fuji lamp.
| IP: Logged
|
|
|
|
|
UBBFriend: Email this page to someone!
![[Wink]](wink.gif)
![[Smile]](smile.gif)
Printer-friendly view of this topic
