RE: Pinhole Day Questions

I found it difficult to properly guess, or meter the exposure time on Sunday
at my workshop. By 2:30 when our cameras were ready it had stopped
raining but was still cloudy. The sun kept poking through the clouds. I use
a chart of lighting conditions. It wasn't heavy overcast anymore but was it
cloudy bright or diffuse sunlight? Half of my class had good prints the first
try. By the third go around everyone found a working method for their own
cameras. If your problem was't light leaks then I would probably say it
was angled too close to the sun or that the lighting changed during the
course of the exposure to make them overexposed. Too bad you didn't
have access to a space to develop and try again.

>===== Original Message From George L Smyth <glsmyth@yahoo.com>
=====
>--- Patrick Barrett <barrettpatrick@hotmail.com> wrote:
>> Here is the root of the question: All the negatives were black! I assume
>> that we drastically over-exposed the paper. I do not think that it was
>> fogged, but I suppose it is possible. The cameras were not light-leaky.
>
>Is there an image? If so, then chances are that this was the case of
massive
>over-exposure. However, I would go back and test the camera for a light
leak,
>as this is more probable. Please film in the camera and set it outside
for an
>hour. If you get anything after developing the film then you've got a light
>leak.
>
>One problem that I ran across was fogging due to the sun coming
directly in
>through the pinhole. My exposure time on Sunday was about 15
minutes, and this
>gave the sun an opportunity at one point to move into a position where is
came
>directly into the hole. This only happened on one shot and the result
was more
>fog than an actual turning of the negative to black, but it's worth a
>consideration.
>
>Cheers -
>
>george
>
>=====
>Handmade Photographic Images
>http://GLSmyth.com
>DRiP Investing
>http://DRiPInvesting.org
>
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Chris Peregoy
peregoy@umbc.edu
http://userpages.umbc.edu/~peregoy
Received on Tue Apr 30 08:17:12 2002