Film-Tech Forum ARCHIVE: 6kw GS/7kw GS

This is topic 6kw GS/7kw GS - Possible? in forum Film Handlers' Forum at Film-Tech Forum ARCHIVE.

To visit this topic, use this URL:
https://ft-forum.com/ft/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=1;t=006843

Posted by Andrew McCrea (Member # 674) on 01-09-2005, 10:44 AM:

This might sound like a stupid idea, but is there any chance that the xenon bulb manufacturers will begin developing 6000 watt or 7000 watt GS/GTP bulbs that could output up to 10,000 watts of light? It seems that with exhibitors now using 60-80 foot wide screens, with low light, such an invention might be useful. They've recently developed the 2000-3000 GS/GTP bulbs.

Anyone want to explain why this might not be possible or why it could be a good improvement? I assume that the bulbs would not have a long life.

Thanks!

Posted by Aaron Sisemore (Member # 145) on 01-09-2005, 01:07 PM:

With the visible light, also comes the infrared... There's the problem.

The upper limit for 35mm film without damaging it is 7K. I would assume that '10K of light from a 7K bulb also includes all the IR that comes with the visible. No go.

The real solution to these giant screens is , of course 5/70 film! [Smile]

-Aaron

Posted by Andrew McCrea (Member # 674) on 01-09-2005, 07:24 PM:

If only 70mm would come back...

Posted by Thomas King (Member # 2745) on 01-09-2005, 10:16 PM:

70mm never went away. It's here, in our hearts.

Posted by Monte L Fullmer (Member # 2797) on 01-10-2005, 05:00 AM:

..another thing in our hearts is: with those big screens...using Strong Futura II's with 13.6mm rotator carbon arcs, or the Simplex 13.6mm condenser carbon arcs. What great light!

-Monte