DPChallenge: A Digital Photography Contest You are not logged in. (log in or register
 
Challenge Entries
This image is not a part of any challenge.
Portfolio Images
This image is not part of a public portfolio.
-
-
bvy


Photograph Information Photographer's Comments
Date Uploaded: Dec 20, 2009

Viewed: 77
Comments: 3
Favorites: 0

My latest DIY photography adventure involves homemade or improvised lenses.

Here, my lens is one of those flexible plastic credit card-sized magnifiers (like this). I used a standard quarter inch hole punch and made a hole in a piece of black construction paper. This is my diaphragm. I centered the hole to the optical axis (circular grooves) of the magnifier and then taped the contraption to... what else? An oatmeal box!

The f-stop is roughly f/16, so the DOF is good. Objects very close to the camera are out of focus. Also, only the center of these image will be in sharp focus (poor man's Lensbaby?).

The exposure time is one second. I don't have a real shutter mechanism yet; I held a piece of black cloth over the lens and captured this (my back yard right after the snow) through a bedroom window. I fogged a lot of paper trying to get images in brighter light, so I need to put something better together and tame the beast.

Please log in or register to add your comments!

AuthorThread
12/21/2009 01:02:45 PM
Great and successful experiment! Kind of a scary dreamlike effect.. jomari's note is interesting, hope you try something like that too! T.
  Photographer found comment helpful.
12/21/2009 08:42:03 AM
Now that's cool.

Thanks for the notes. I don't know that I will ever do this, but it's interesting to read about. 8)
  Photographer found comment helpful.
12/20/2009 05:02:53 PM
I love this sort of inventiveness. The image is cool and individual. I'm constantly on the lookout for 'lenses' - poor woman's lenses in my case. Only maybe I can only call them filters coz I still have the conventional camera and lens behind them. I am not savvy enough to build my own camera. I saw a fantastic set of panoramic prints at an exhibition. The camera was a biscuit tin (cookie tin) with six evenly spaced holes around it, covered with duct tape. The film, which was on an inner cylinder, was exposed by the holes being uncovered individually. I'm sorry but I can't remember important details like the f-stop, but I think the exposure was fairly long, and must have been very long for some which were night, or gloom shots.
  Photographer found comment helpful.


Home - Challenges - Community - League - Photos - Cameras - Lenses - Learn - Help - Terms of Use - Privacy - Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 05/30/2025 07:43:35 AM EDT.