Re: Intergrating Light Meter

Sorry for the late response (pardon the pun). Yes I have actually been
using the light meter and shutter quite a bit (hence the lack of
postings). Primarily, currently, for flash photography at night and I
have also been taking various ad-hoc pictures just to try out new ideas
and techniques. I'm afraid I don't have a scanner and rarely get
photographs scanned (1 or 2 per roll) but the exposure consistency I can
guarantee, is superb compared to my previous, varied, results.

I have finally rooted out the sensors spectral responsivity and was
actually surprised that this particular diode does have some sensitivity
to UV. I'm not sure what response the Daguerreotype process requires
though. To make the light meter function for UV only you would need to
either ensure there was *only* UV present or put some filters over the
sensors. I enclose the response curve for the pure sensor minus IR cut
filter.

Anyhow I have finally got round to finishing off a third light meter and
will put it up on eBay, tomorrow or the day after, the reserve price
being the parts cost. The software is now fairly stable but I will
probably add some kind of indication for the estimated number of flashes
required for flash metering and allow the reviewing of previous exposure
times via the rotary encoder.

In any event a Merry Xmas to all pinholers!

All the best

John

----- Original Message -----
From: "andy schmitt" <aandy@comcast.net>
To: <pinhole-discussion@spitbite.org>
Sent: Thursday, November 23, 2006 2:18 AM
Subject: RE: [pinhole-discussion] BOUNCE
pinhole-discussion@spitbite.org: Non-member submission from [Richard
Heather <rheather2001@yahoo.com>] (fwd)

> Ahhhh, I wondered what I had done with this email...
> How are you doing? Getting a chance to use your meter & shutter much?
Hope
> so..
> Had a Question for you...
> Do you think this would be adaptable to UV light for metering
> Daguerreotypes?
> Happy Thanksgiving
> regards
>
> Andy Schmitt
> Photographer, Computerist, Slayer of Dragons
> All opinions expressed are mine...Unless otherwise stated or
REALLY
> stupid
> www.aandy.org - not non-profit on purpose....
>
> Head of Photography, Peters Valley Craft Center
> 2007 schedule on line at:
>
http://www.petersvalley.org/2007%20Workshops/photography2007_wrkshpschd.htm
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Received on Sun Dec 10 02:49:50 2006