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Old October 4th, 2009, 04:21 PM   #1
Pinhole movies
Tramm Hudson Tramm Hudson is offline October 4th, 2009, 04:21 PM

What better way to use a $2700 camera body than with a $0.01 lens? At ISO 6400 it is possible to shoot video at 1/30th of a second. The effect is very odd, almost like a Super-8 film.

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Old October 4th, 2009, 06:06 PM   #2
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Tramm,

This is a cool concept - when you're not so busy trying to crack the 7d overheating issue. please post more about this.
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Old October 4th, 2009, 07:39 PM   #3
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Originally Posted by Ken Diewert View Post
This is a cool concept - when you're not so busy trying to crack the 7d overheating issue. please post more about this.
There's not too much to it. I drilled a 4mm hole in the body cap, taped a piece of Aluminum foil over it on the inside and poked a tiny hole in the foil with a needle. You can see the simplicity of the "lens" in the attached photo. Metering doesn't really work, so it takes quite a few manual shots to get it right.

On the 7D front, I'm hoping that Canon releases a firmware fix for the overheating problem since getting a dump from the camera without a "known good" firmware file is proving to be difficult.
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Old October 4th, 2009, 10:32 PM   #4
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Thanks Tramm,

I want to try this sometime. Maybe we can start a "Pinhole Lens - Film Festival"
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Old October 12th, 2009, 12:05 AM   #5
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Use matte black foil (available from Lee Filters) for a less obvious, more covert approach.

Can't wait to try this out once I can locate a spare body cap. Thanks Tramm,
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Old October 12th, 2009, 01:48 AM   #6
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Use matte black foil (available from Lee Filters) for a less obvious, more covert approach.
The black foil would likely also prevent this weird reflection problem when shooting into the sun.
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Old October 12th, 2009, 02:59 AM   #7
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I've used the same technique to take still pictures on my EOS100. I'm sure I've seen the maths somewhere that tells you the optimum size of the pinhole to use, and of course it's frame size dependent. Too small and diffraction loses you sharpness, too large and ditto. There's a critical 'sweet spot'.

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Old October 12th, 2009, 04:22 AM   #8
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Am definitely going to try this 'look'. I love these whacky things on DVinfo :-)
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Old October 12th, 2009, 07:08 AM   #9
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More on the Black Foil:

http://www.leefiltersusa.com/lightin...4630B29462927/

Spare EOS Body Cap:

http://shop.usa.canon.com/webapp/wcs...0051_171117_-1
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Old November 16th, 2009, 06:48 AM   #10
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There is a bloke that sells these for $20 - $30. Have a look. Do you think it's worth it or can I get the same results doing the same myself for a couple of bucks.

it's the Canon Pinhole Lens Cap about 2/3 of the way down on the page:

paypal


p.s. I love the Canon mount Holga lens above them. Definitely gonna get one of them.
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