Brian Posted April 13, 2004 Share Posted April 13, 2004 While (briefly) on the subject of Raylight reflectors, whats the beefest lamp you can put in them? T26s or T19s? Ah I've answered my own question... as they've got a GY9.5 base (see here) it's going to be a T26 (650w) I'd have thought. Stu Although it will fit, it won't work. The problem is that the filament is not in the focus of the reflector. They are normally designed to be used with an A1/233 (aka DYR?), which is still a 650W lamp. Link to comment Share on other sites More sharing options...
Stu Posted April 13, 2004 Share Posted April 13, 2004 Ah right - ta for that Brian... Next question - anyone know what kind of light you get out of them in terms of shape, degrees and brightness? Stu Link to comment Share on other sites More sharing options...
Brian Posted April 13, 2004 Share Posted April 13, 2004 Ah right - ta for that Brian... Next question - anyone know what kind of light you get out of them in terms of shape, degrees and brightness? StuWell since I'm here... The beam tends to be more circular than a standard PAR, often it's a pretty good circle.I reckon the brightness of a 650W raylight approachs that of a 1k PAR. It's quite difficult to do accurately since you need them to be set for the same spread.For beam angles you can find raylights with different angles, they aren't as common but you can get them in wide/medium/narrow and very narrow. I have also seen variable beam angle units, have a look at Parabeam 1000.I've often been tempted to change all my PARs to reflector units, the initial outlay is more but replacement lamps are way cheaper (and you need only carry one spare lamp type). Link to comment Share on other sites More sharing options...
Stu Posted April 13, 2004 Share Posted April 13, 2004 Lovely - thanks for that helpful insight Brian.... Now back on topic, the lot of ya ;) Stu Link to comment Share on other sites More sharing options...
robloxley Posted April 13, 2004 Share Posted April 13, 2004 I've often been tempted to change all my PARs to reflector units, the initial outlay is more but replacement lamps are way cheaper (and you need only carry one spare lamp type). And the spare lamps are somewhat smaller to carry around and store.However, the lamp-life of an A1 class bulb is somewhere around 50hrs compared to ~300 for a 230V P64 or double that again for a 110V one. Link to comment Share on other sites More sharing options...
la grande homme Posted April 16, 2004 Share Posted April 16, 2004 remember that heatshield workd best with an air gap between the heatshield abd the gel... otherwise you get a heatshielgeliforic fused mess! at £7.50 plus VAT per mess... :o Edit: (or I could just read the other two pages of the thread and discover that several people have already said that ... 'm glad I didnt suggest using less saturated coulours like I was going to... ) YOu can get 300watt par lamps... not as bright but longer gel life We've had a similar problem at the Linbury since we got our new Robert Juliat 2K Fresnels, they burn through gel in about ten minutes... even some of the lighter stuff! We're also on our third set of lenses for them but thats another story... Link to comment Share on other sites More sharing options...
paulears Posted April 17, 2004 Share Posted April 17, 2004 We're also on our third set of lenses for them but thats another story now this is much more interesting - lenses on Juliats - please tell more Link to comment Share on other sites More sharing options...
Dave Posted April 20, 2004 Share Posted April 20, 2004 Just a quick point: Most T class lamps (apart from some early types used in P264s) are designed to burn base down. Hence they don't like being used in raylights and won't last very long. The A1/244 (500W) and A1/233 (650W) are designed for axial use and are the correct lamps. You might also be able to put a CP/77 (1kW) in, but I don't think the raylights are specced for that!! Dave. Link to comment Share on other sites More sharing options...
la grande homme Posted April 22, 2004 Share Posted April 22, 2004 Yars, Robert Juliat 2K Fresnels first set of lenses were just plain wrong... (burnt out the more saturated gels in seconds, had a strange 'double' ring in the beam and didn't make circles (the only way we could use them was with the barn doors on to make squares... second set less bad but still not good all of above problems just slightly reduced altho' Juliat did send a frenchman to change them all the way from Frenchland! Third set (current) are better but still burn through the gel like a hot knife through your eyeball on full flood and only a bit slower on anything less than full flood. Keep trying monsieurs... Link to comment Share on other sites More sharing options...
raj Posted April 22, 2004 Author Share Posted April 22, 2004 Coming back to the topic in hand...(!), the thing that bugs me is that the actual par can is a Thomas floor lite so is actually designed to shoot upwards-surely they would have designed it to allow adequate cooling!? Link to comment Share on other sites More sharing options...
la grande homme Posted April 22, 2004 Share Posted April 22, 2004 as far as im aware a parcan floor lite is just a shart nosed parcan with an extra trunion arm... Link to comment Share on other sites More sharing options...
wilcoxjnr Posted April 26, 2004 Share Posted April 26, 2004 Diverting from the topic in hand (apologies)... How are the 2K Juliat Fresnels coping with scrollers on the front? Does the fan keep the scroll from burning like the proverbial "ring of fire" or is it a pointless exercise? Would be interested to know, as I can save a few bob by splashing out on some (far too expensive) heatshield now rather than some heatshield and replacement scrolls next week... Link to comment Share on other sites More sharing options...
la grande homme Posted April 26, 2004 Share Posted April 26, 2004 :P really ought to start a new thread... haven't AFAIAA tried them with scrollers.... don't see why it would make much odds though, they are extremetively warum! Tweaking the focus back a nat's from fully flooded can help a bit but keep plenty of spare gel! Link to comment Share on other sites More sharing options...
Andrew C Posted April 27, 2004 Share Posted April 27, 2004 Most T class lamps (apart from some early types used in P264s) are designed to burn base down. Hence they don't like being used in raylights and won't last very long. Did anyone come across "MaxLites"? Biggest pile of canine do's I've ever come across! Exactly this problem, and a rig of 70 lanterns or so with a lamp-life measured in seconds. :P Can't remember what the bubbles were though, CP something from memory... Link to comment Share on other sites More sharing options...
raj Posted April 28, 2004 Author Share Posted April 28, 2004 back to the topic.. (again!), im still not having any luck - the gels just burn too quick. Can I use a 300watt bulb instead of the 500watt one in a par 64? Is there such a thing as a par64 300watt lamp?? :P Link to comment Share on other sites More sharing options...
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