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Theatre > Theatre Stagecraft > Re: Focusing HX...
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Re: Focusing HX600 lamps in old fixtures

by bushouse@[EMAIL PROTECTED] Nov 21, 2007 at 02:10 PM

On Nov 21, 4:07 pm, Lloydj <ljeffo...@[EMAIL PROTECTED]
> wrote:
> > Anyone have any clues (or experience) with what the problem might be
> > here? Sure would appreciate any
> > help getting rid of those dead spots (there's so little light left
> > coming out to begin with, I can't afford to lose
> > any more due to poor focus!).
>
> > Thanks,
> > Howard
>
> The LCL of the former FEL is 60.3mm (or so the book says) and the
> output is 27,500 lumens, while the LCL of the HX600 (aka FLK) is
> 60.5mm and the output is 16,500 lumens.  The first thing to do is push
> the lamp straight in about 1/8".  I've ****mmed under lampholders in
> severe cases and you may have to here, depending on the adjustment
> available.  But as mentioned, the output is about 1/2  the original
> but you should be able to get it flat.
> Cheers,
> Lloyd

Yes, I had previously tried the approach of (carefully) sliding the
whole lamp
housing in and out a bit to try to find the correct new position, but
if you're
right about the lamp needing to go *in* further, then that might
explain why
I was unable to find the correct spot with this method. I would have
to first
adjust all 3 screws to move the lamp further in (perhaps more than it
really
needs) and then try to look for the sweet spot again by sliding the
whole
housing a bit.

Thanks to both you and Bert for the suggestions.

-Howard
 




 4 Posts in Topic:
Focusing HX600 lamps in old fixtures
bushouse@[EMAIL PROTECTED  2007-11-20 16:43:26 
Re: Focusing HX600 lamps in old fixtures
Bert Morris <bertmorri  2007-11-21 06:46:24 
Re: Focusing HX600 lamps in old fixtures
Lloydj <ljeffords@[EMA  2007-11-21 13:07:22 
Re: Focusing HX600 lamps in old fixtures
bushouse@[EMAIL PROTECTED  2007-11-21 14:10:31 

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