Re: figuring pinhole exposures

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From: Ed Buffaloe (EdBuffaloe@unblinkingeye.com)
Date: 04/13/02-05:35:57 AM Z

I have a pinhole exposure calculator that adjusts for reciprocity failure on
my web site at
http://unblinkingeye.com/Articles/Pinhole/Calculate/calculate.html. It is
set up for T-Max 100 and Tri-X, but I can also provide times for T-Max 400,
and there is a blank space where you can fill in reciprocity-corrected
exposures for your favorite film.
Ed Buffaloe

----- Original Message -----
From: "Gordon J. Holtslander" <holtsg@duke.usask.ca>
To: <alt-photo-process-l@sask.usask.ca>
Sent: Saturday, April 13, 2002 12:08 AM
Subject: Re: figuring pinhole exposures

> Hi:
>
> I use Larry Fratkin's pinhole calculator at
>
> http://www.MrPinhole.com/Exposure.html
>
> This web page does the math for you. You enter the f-stop of your camera,
> it then creates a table that lists "normal" camera exposure times and
> their equivilant exposures using your f-stop.
>
> To use the table you take a meter reading and find this on the table. In
> the far left column on the same row as your meter reading you will find
> the exposure for your f-stop.
>
> Hard to explain, but it works. I calculate the f-stop for each camera. I
> feed this into the form print out the results and tape it to each camera.
>
> With this I can convert standard light meter readings on the spot without
> doing any math :)
>
> Gord
>
> ---------------------------------------------------------
> Gordon J. Holtslander Dept. of Biology
> holtsg@duke.usask.ca 112 Science Place
> http://duke.usask.ca/~holtsg University of Saskatchewan
> Tel (306) 966-4433 Saskatoon, Saskatchewan
> Fax (306) 966-4461 Canada S7N 5E2
> ---------------------------------------------------------
>
>

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