- Original Message -
From: "Paul Prober"
The problem experimenting with different pinhole sizes is that unless we are
making exposures of resolution targets
http://www.???/resources/articles/Young/images/fig5.jpg the
results will be always subjective to each viewer, scene, image contr
I have not experimented to find the optimum pinhole size. Chris Patton
has, and his conclusion was that the Prober-Wellman Formula is a practical
values to use for f/stop to pinhole size for reasonable Circles of
Confusion.
See http://www.stanford.edu/~cpatton/phcalc3.htm which uses the
Prober-
What about using a beer can? Is that to thick of a material?
Thanks.
Travis
-Original Message-
From: Paul Prober [mailto:pro...@silcom.com]
Sent: Friday, November 01, 2002 12:05 PM
To: pinhole-discussion@p at ???
Subject: [pinhole-discussion] re pinhole size
Hi,
The pinhole
- Original Message -
From: "Paul Prober"
>
> A pinhole with the minimal thickness the expected at 120 degree [+/-60]
view
> angle 1 stop roll off at edge
Paul, I have visited your PinPlus site but couldn't see any picture of your
cameras. Are your cameras curved film plane? If the answe
Hi,
The pinhole size is not the problem. The thickness of the material is.
At 70mm or less 0.001 inch thickness and thinner is required to allow for
side angle view with minimum roll off.
A pinhole with the minimal thickness the expected at 120 degree [+/-60] view
angle 1 stop roll off at edge
--- candy/jules wrote:
> Can you guys offer some info on making a pinhole for a 5x7 camera. I would
> like to have about 135 mm. I have read some info and it suggested a #10
> needle, but wow is that incredibly small. Maybe drilling would be better.
> Thanks for any assistance with pointing me
Can you guys offer some info on making a pinhole for a 5x7 camera. I would
like to have about 135 mm. I have read some info and it suggested a #10
needle, but wow is that incredibly small. Maybe drilling would be better.
Thanks for any assistance with pointing me in the right direction. Ignore
