Yes, you don't want to get too close. I haven't taken the time to do any
calcs on this stuff yet. I simply have a system that works and will improve
on it as time and need allows. Be interesting to run the math, though. A
parabolic reflector seems like a fun exercise.
On Sun, Feb 14, 2010 at 10:00 AM, Leon Heller <leon355@...>wrote:
>
>
> On 14/02/2010 14:49, Barry Demers wrote:
> > Since you can measure your exposure with accuracy, reduce your distance
> and
> > increase your time. For example, 6" distance should equate to 6 minutes.
> > (half the distance, 1/4 the time). One thing that I haven't dialed in
> yet.
> > The bulbs have a lifetime, they wear out. Longer they are on for each
> job,
> > the fewer the jobs before replacement.
>
> Don't forget that you lose collimation with shorter distances.
>
> Leon
> --
> Leon Heller
> G1HSM
>
>
--
Thank you,
Barry
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