Pinhole movies at DVinfo.net

Pinhole movies · 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.

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

Quote:

Originally Posted by Ken Diewert

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

Quote:

Originally Posted by Chris Hurd

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

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.

October 4th, 2009, 06:06 PM	#2
Ken Diewert Trustee Join Date: Mar 2006 Location: Vancouver Island, Canada Posts: 1,200	Tramm, This is a cool concept - when you're not so busy trying to crack the 7d overheating issue. please post more about this. __________________ C100, 5DMk2, FCPX

October 4th, 2009, 10:32 PM	#4
Ken Diewert Trustee Join Date: Mar 2006 Location: Vancouver Island, Canada Posts: 1,200	Thanks Tramm, I want to try this sometime. Maybe we can start a "Pinhole Lens - Film Festival" __________________ C100, 5DMk2, FCPX

October 12th, 2009, 12:05 AM	#5
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	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, __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

October 12th, 2009, 04:22 AM	#8
Richard Gooderick Major Player Join Date: Oct 2007 Location: London, UK Posts: 795	Am definitely going to try this 'look'. I love these whacky things on DVinfo :-) __________________ http://www.gooderick.com

October 12th, 2009, 07:08 AM	#9
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	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 Attached Thumbnails __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

October 12th, 2009, 02:59 AM	#7
Tom Hardwick Inner Circle Join Date: Mar 2003 Location: Billericay, England UK Posts: 4,711	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.

November 16th, 2009, 07:48 AM	#10
Jim Jolliffe Regular Crew Join Date: Oct 2009 Location: London, UK Posts: 39	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. __________________ www.jimjolliffe.com