Re: [pinhole-discussion] RE: pinhole size

2002-11-18 Thread Guillermo
- Original Message - From: Paul Prober pro...@silcom.com 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,

RE: [pinhole-discussion] re pinhole size

2002-11-01 Thread ROBERTSON,TRAVIS J
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

[pinhole-discussion] re pinhole size

2002-11-01 Thread Paul Prober
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

Re: [pinhole-discussion] Re: Pinhole-size for 5x7 format

2001-10-08 Thread George L Smyth
--- candy/jules popps...@wccta.net 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

Re: [pinhole-discussion] Re: Pinhole-size for 5x7 format

2001-10-07 Thread candy/jules
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