RE: Camera Size?

Thanks for your reply. I am learning about the science of pinhole cameras
and I must tell you my head hurts at times trying to figure it out. As far
as the result, look at this web site. http://marthacasanave.com/lenin.html
. I really like the dreamlike quality of these photos but I would like to
have the images a little sharper. I'm from New Orleans and I want to make a
photo gallery of the older parts of town. What I can not figure out is how
they did this. See how even the light is. With my oatmeal pinhole camera,
more light is located in the center to the photo and gradually gets darker
on the sides. Today, I'm going to find something that will measure the
pinhole size. I have been cutting up a coke can and poking the hole in it.
I then sand the back down to try and make a clean hole. Does anybody have a
cheap suggestions that might work better.
Once I get a better understanding of this, I will build the larger camera.

Thanks,
Travis.

-----Original Message-----
From: G.Penate [mailto:penate@rogers.com]
Sent: Wednesday, August 07, 2002 6:56 PM
To: pinhole-discussion@pinhole.com
Subject: Re: [pinhole-discussion] Camera Size?

----- Original Message -----
From: "ROBERTSON,TRAVIS J" <IS-TJR@womans.com>

> I would like to make 16X20 prints (That is I want to put the paper in the
> camera) and I'm trying to figure out how large of a pinhole camera I would
> need. Any suggestions on how to figure this out?

Travis,
           Asking "how large a pinhole camera I'd need for 16x20 format" is
in
essence not different than asking: I have an SLR what lens should I buy?.
The
answer is: it depends on the application and/or results you want to achieve.
Having said that, if I was making a 16x20" camera, I'd make it wide angle,
perhaps something equivalent to 75mm to 90mm in 4x5 format (in case you are
familiar with this format), in other words, I'd make it so it has anywhere
from
300mm to 360mm in focal length or distance pinhole to film/paper.

You were not asking for pinhole sizes but: As for getting scientific about
pinhole, as Chris was refering to, I don't like optimum pinholes either, but
I
do measure the pinholes I make, I'd hate to poke a hole in a metal foil and
by
chance get the perfect optimum hole for my camera. By knowing what the
"perfect
optimum" hole is and by measuring my pinholes, I can not only know the
f/stop of
my camera but equally important I can make sure I avoid using the perfect
optimum pinhole!!

Guillermo

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Received on Thu Aug 8 13:24:18 2002