Go Back   Steve's Digicams Forums > Post Your Photos > Photo Critiques

Reply
 
Thread Tools Search this Thread
Old Jul 12, 2008, 12:56 AM   #1
Senior Member
 
matthew2000tx's Avatar
 
Join Date: Mar 2005
Posts: 1,451
Default

These are some images I took with my newly created Pinhole lens which is an Eos Body Cap drilled with foil covering the large drilled hole. That foil has been poked with a small pin! it is essentially a non-focusable 50mm f/1,000 (or something really dark and slow like that)... it cost only about $6 to make and it has been a fun little toy..

Let me know that you think about the images. Most were taken at 3200 ISO (in broad daylight!) using my Canon Eos20d.

#1
Attached Images
 
matthew2000tx is offline   Reply With Quote
Sponsored Links
Old Jul 12, 2008, 12:57 AM   #2
Senior Member
 
matthew2000tx's Avatar
 
Join Date: Mar 2005
Posts: 1,451
Default

#2... keep in mind you can't focus the pinhole... infact you really can't see throught the viewfinder when shooting in daylight!... it is that dim!
Attached Images
 
matthew2000tx is offline   Reply With Quote
Old Jul 12, 2008, 12:57 AM   #3
Senior Member
 
matthew2000tx's Avatar
 
Join Date: Mar 2005
Posts: 1,451
Default

#3
Attached Images
 
matthew2000tx is offline   Reply With Quote
Old Jul 12, 2008, 12:58 AM   #4
Senior Member
 
matthew2000tx's Avatar
 
Join Date: Mar 2005
Posts: 1,451
Default

#4
Attached Images
 
matthew2000tx is offline   Reply With Quote
Old Jul 12, 2008, 12:58 AM   #5
Senior Member
 
matthew2000tx's Avatar
 
Join Date: Mar 2005
Posts: 1,451
Default

#5
Attached Images
 
matthew2000tx is offline   Reply With Quote
Old Jul 12, 2008, 12:59 AM   #6
Senior Member
 
matthew2000tx's Avatar
 
Join Date: Mar 2005
Posts: 1,451
Default

#6
Attached Images
 
matthew2000tx is offline   Reply With Quote
Old Jul 12, 2008, 12:59 AM   #7
Senior Member
 
matthew2000tx's Avatar
 
Join Date: Mar 2005
Posts: 1,451
Default

#7
Attached Images
 
matthew2000tx is offline   Reply With Quote
Old Jul 12, 2008, 8:28 AM   #8
Senior Member
 
Bynx's Avatar
 
Join Date: Jun 2007
Posts: 8,585
Default

Ive seen incredible results with a pinhole camera. As you say the f stop number is way up there. If you shoot the interior of a busy building, like say Grand Central Station, the people scurrying around dont register so when the final exposure time is up you have a nice looking EMPTY room. Not sure about the focusing, but I believe there is a formula for that so there is no guessing. Images I have seen look like they have been taken with a regular camera, pristine and razor sharp. While your shots are interesting to look at knowing how they were created, they are too out of focus to be practical. I imagine your camera has a "B" setting allowing for long exposures. Unfortunately my camera (Fuji S700) has only a maximum 4 second exposure time, otherwise, Id give it a shot. Done right with the example of Grand Central Station, the exposure time is many hours. Thanks for showing your results. Im sure you have wetted the appetites of those adventurous enough to try it.

Just a thought. Your fstop is so small your depth of field should be very long. I think your problem is NOT a focusing problem from distance to the subject, but a focusing problem from the hole of the "lens" to the camera "back". This has to be a fixed distance and very exact for pics to be in focus.

I just checked this site out. All the info anyone needs about pinhole lens. http://www.northlight-images.co.uk/a...s_pinhole.html
Bynx is offline   Reply With Quote
Old Jul 12, 2008, 9:12 AM   #9
Senior Member
 
Join Date: Feb 2007
Posts: 1,306
Default

Nice concept with a great input by Bynx.. I am learning a lot out here..
Thanks for shring the information
Liu
mcliu is offline   Reply With Quote
Old Jul 12, 2008, 9:51 AM   #10
Senior Member
 
Join Date: May 2008
Posts: 202
Default

interesting concept. And that it really works!
feetjai is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 6:52 PM.