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Topic: Osram MR16 64634 HLX 15v 150w lamp
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Del Phillipson
Jedi Master Film Handler
Posts: 679
From: Derbyshire, England
Registered: Dec 2005
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posted December 05, 2015 10:43 AM
Hi Paul, that went way above my head, great advice all the same, I'll have a look at the bulb when it arrives to see if I can make sense of what you are saying, thanks, Del.
Paul, Maurice, Andrew, where do you source your lamps from ? I'm with you Andrew I'd like to get 10 at a time if it makes it any cheaper.
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Paul Browning
Phenomenal Film Handler
Posts: 1006
From: West Midlands United Kingdom
Registered: Aug 2011
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posted December 05, 2015 11:00 AM
Sorry Del, not done to confuse you, but to save you some money and time, ok try this then, make a small tube the same size diameter as your lens, cover one end with plain paper so you have one end is closed off, slide this into where your lens is on your projector, so it can slide in and out, put your existing lamp in, switch on, look down the end of the tube and focus the beam onto the paper so that its as small as you can get it, leave in place, now switch projector off and let cool so you can remove lamp, replace with your new lamp, switch on, is the spot the same size and focussed ?, if not and you need to move the tube then they are not focussing in the same spot at the same distance. The other way is to have a light meter reading at the screen, which is more accurate. What is important is there more light on the screen or not, not how bright the lamp say's it is.
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