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04/14/2005 12:47:03 AM · #1 |
Hey I wanna try out this pinhole photography, but I am having alittle trouble understanding how to make a camera, if u got any links or tips please share, thanks.
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04/14/2005 12:50:25 AM · #2 |
I believe you can use your D70 to create pinhole photography. Just punch a whole on a body cap. Or buy one from Freestylephoto.biz
//www.freestylephoto.biz/sc_main.php?cat_id=2203
Examples of Pinhole at Photo.net
//www.photo.net/bboard/q-and-a-fetch-msg?msg_id=008EA2
Message edited by author 2005-04-14 00:51:28. |
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04/14/2005 12:51:40 AM · #3 |
Get a 3/16" drill bit and just make sure it's centered on your lens and poke it through. lol OK seriously, don't do that.
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04/14/2005 12:54:32 AM · #4 |
Originally posted by deapee:
OK seriously, don't do that. |
Now you say that...
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04/14/2005 01:03:20 AM · #5 |
i've never even heard of pinhole photography... anyone else have any more insight and exmples on it?
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04/14/2005 01:10:36 AM · #6 |
Originally posted by totaldis:
i've never even heard of pinhole photography... anyone else have any more insight and exmples on it? |
//www.mrpinhole.com/index.php |
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04/14/2005 01:14:24 AM · #7 |
I wasnt aware that you could do digital pinhole photography.. i guess it makes sense though. I cant do it w/ my camera though, but when I upgrade to a dSLR, i'll have to remember to try it. I did it a little in my class, but we went old school with a light tight box with photopaper in it and a pinhole made with a pin.
Message edited by author 2005-04-14 01:16:29. |
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04/14/2005 01:56:23 AM · #8 |
Hi Matthew,
I think I've seen other forum topics on pinhole photography (specifically digital pinhole photography, but the search is "Temporarily disabled." and I like hearing new ideas anyways.)
We did pinhole photography in my physics class. My box looked like this:
Creation: What we did in this lab is take a normal shoe-box and taped black paper to cover the inside. We did this to stop any reflections that might be bouncing off the edges. Then we carved out a hole, taped aluminum foil over it, and poked a hole as close to the center as we could. I wrote "DIGITAL" on top of my box so that I could call it my new digital camera =). Box complete.
Dark room: Took a sheet of photographic paper, cut it to fit in the box, and put it in (making sure to have the photo side pointing towards the pinhole). Put the lid on, taped around the edges for an extra seal for light getting in. Finger over the pinhole, walked out the cool sliding round door =).
Exposure: Set the box down (after thinking about possible composition, exposure length), took finger off, started watch. Depending on the location (brightness), I varied the exposure time. Sunny spots = shorter exposure, from 45 seconds to 1:15. In shade, anywhere from a 1:15 to 2:30. My one try of an indoor shot didn’t come out. One group had a 7 minute exposure inside and it didn’t come out either.
Darkroom Development: Open box, flip image right side up, and look at its whiteness. Even though an exposure could have been dead on in camera, you could still ruin the photo in the darkroom, I think I may have ruined an occasional shot here (doh!). First solution: developer. Put in this until image began showing up. Took image immediately out (tongs used all the time), and put it into the water, then out of that and to the final solution. I can't remember the official name, but it stopped all the chemical reactions of the developer. Then water again to wash it off. Squint at it under the red light, set the box up for the next shot, back through the awesome rotating door and into the sudden brightness to see the image.
The best two I got:
 
Thoughts: Much different then digital photography, you don't know what the image is currently looking like while taking, and there is only two settings: pinhole open and pinhole closed. No settings of aperture (well besides the aperture already setup), ISO, focus, or white balance (just black and white). Only variable is the shutter speed and brightness of the location. Although there is only that one variable, it was so easy to screw up.
Overall: I very much enjoyed the experience. Being that I had never been in a darkroom before that, I found that it gave my understanding of photography another perspective. It also gave me alot of respect for great photographers of our past that mastered this skill (except not with a pinhole camera). But I can imagine playing around with this more, trying to get an indoor exposure to work, perfecting the darkroom madness, and finding the sharpest image possible.
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04/14/2005 02:13:30 AM · #9 |
Give this place a go...pinhole photography
Justin came to visit our camera club and very entertaining evening it was!
Message edited by author 2005-04-14 02:13:46.
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04/14/2005 02:27:24 PM · #10 |
Try this for a simplified version.
oatmeal box pinhole camera |
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04/14/2005 02:32:19 PM · #11 |
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04/14/2005 03:07:58 PM · #12 |
| I don't think the D70 will take a picture when there is no lens attached (electronically!). :-( |
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04/14/2005 03:15:11 PM · #13 |
Originally posted by skylen:
I don't think the D70 will take a picture when there is no lens attached (electronically!). :-( |
Shoulda bought a Canon! LOL
The lens cap idea works, but the pinhole has to small and dead center and clean on the edges. What i read was to take some thin brass sheet (.010") and useing a punch dimple it. then sand the protruding part until it breaks through. F128 or so. You can then mount this in the bodycap (drill a hole in the cap, insert eth brass strip in side and glue it).
One of my model magazines' photo gurus used a 50mm manual lens -do the brass idea and then take the lens apart, glue the stip in just behind the aperature diaphragm. Reasemble. When the lens is wide open you can see and focus, etc. When it is stopped down ,the blades cover the edges of the brass strip leaving just the center pinhole open. This will work on your D70!
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04/14/2005 03:42:07 PM · #14 |
For those interested, here is a link to a little program that will calculate optimal pinhole dimensions given your camera configuration (among other things). I found it useful. Enjoy!
BTW, when making a pinhole, the edge quality is critical. The hole shoud be as round as is humanly possible, and the edges should be free of protrusions or defects to the greatest degree possible. The thinner the material the better. The optimal diameter of a "lens cap" pinhole is about 0.3mm, which corresponds to about 0.012 inches, for us backward Americans.
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04/14/2005 03:55:14 PM · #15 |
 
These are two exposures I made with my home made pinhole cameras. I built 12 cameras and would go on location and try my luck with exposure times.It’s fun but took a lot of time and effort to get any descent results and of course you need a dark room set-up to develop the images but it will give you a great appreciation of the digital technology today we have today :) good luck if you give it a go!
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04/17/2005 09:54:41 PM · #16 |
Originally posted by skylen:
I don't think the D70 will take a picture when there is no lens attached (electronically!). :-( |
Actually, the D70 works just fine in manual mode with a pinhole modified body cap. I played with a couple of home-made pinholes and then bought a .3 mm laser cut pinhole from Lenox Laser that I'm very happy with.
The link below is to a composite of 10 separate shots taken with the pinhole on my D70 -- it's nothing terribly special but it proves the viability of using the D70 for pinhole work. These shots were taken on a very bright and sunny day and the manual exposure was on the order of 4-5 seconds each.
Here's that composite link: Pinhole Composite |
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