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-   -   Pinhole movies (https://www.dvinfo.net/forum/eos-full-frame-sample-clips-gallery/465037-pinhole-movies.html)

Tramm Hudson October 4th, 2009 04:21 PM

Pinhole movies
 
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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.

Ken Diewert October 4th, 2009 06:06 PM

Tramm,

This is a cool concept - when you're not so busy trying to crack the 7d overheating issue. please post more about this.

Tramm Hudson October 4th, 2009 07:39 PM

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Quote:

Originally Posted by Ken Diewert (Post 1427732)
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.

Ken Diewert October 4th, 2009 10:32 PM

Thanks Tramm,

I want to try this sometime. Maybe we can start a "Pinhole Lens - Film Festival"

Chris Hurd October 12th, 2009 12:05 AM

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,

Tramm Hudson October 12th, 2009 01:48 AM

1 Attachment(s)
Quote:

Originally Posted by Chris Hurd (Post 1430888)
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.

Tom Hardwick October 12th, 2009 02:59 AM

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'.

tom.

Richard Gooderick October 12th, 2009 04:22 AM

Am definitely going to try this 'look'. I love these whacky things on DVinfo :-)

Chris Hurd October 12th, 2009 07:08 AM

2 Attachment(s)
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

Jim Jolliffe November 16th, 2009 07:48 AM

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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