Re: Pinhole Light Meter

--- John Fletcher <jfl10593@bigpond.net.au> wrote:

[clip]
> The biggest cost at the moment is the IR cut filter which you can see on
> top of the light sensor. It's a Sirius Optics NIR1 filter but the Baader
> UV/IR Cut Filter appears technically better. The IR cut filter currently
> costs US$59 with a US$20.00 adapter from
> http://webcaddy.com.au/astro/adapter.asp. The light sensors I use are
> designed to function with the Hoya CM500 or Schott BG18 or BG39 filters
> also. These make the light sensor's response similar to that of the
> human eye / film. If anyone knows where I can get such a filter on the
> cheap that would greatly cut the overall cost.
[clip]

John -

Have you considered leaving it out? The reason I say this is that I
occasionally shoot infrared pinhole, so in those cases an ir filter would be
less than helpful. Perhaps offering it without, with an option to add the
filter up front at additional cost would be a possibility.

If you're looking for someone to help test it and pay for the parts then I'd be
glad to raise my hand.

Cheers -

george

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Received on Sat Aug 5 13:24:58 2006