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Picture of Make an adjustable Pinhole camera
clack5.jpg
This instructable shows you how to convert a 60year old analog camera to a pinhole camera with three different pinholes.

Step 1: Get the camera

Picture of Get the camera
First of all you need the camera. Tha agfa clack was introduced in 1954 and uses medium format film. But with a small modification you can also use 35mm.
I chose the agfa clack, because it is robust, cheap and easy to modify. You can get this camera for a few bucks in online auctions.
If the housing is o.k., don't worry about the function. There is nearly nothing that can get broken.
 
Jan_Henrik1 year ago

Very cool!

Yo-K, as most pointed out, its not purely a pinhole camera. I'd call it "lens assisted pinhole" in a pinch. A pinhole focuses by diffraction where a lens focuses by refraction. Still a fun project, but beware of reciprocity failure.
Nice.
But technically it's not a pinhole camera since you put a lens on the pinholes.
It is only a regular analog camera with 3 apertures as there was many 50 or 69 years ago.
mickryobe1 year ago
A pinhole camera, by definition, has no lens.
I used an Agfa Clack for World Wide Pinhole Day 2013 back in April, as did several others from various spots on the globe http://www.pinholeday.org/gallery/2013/index.php?formType=list&f_action=refresh&Country=&Province=&City=&groupname=&searchStr=clack My submission is easy to spot as the worst one on the Clack page :(

The Clack's is indeed a great camera for pinhole photography. As you point out, it is rugged and easy to work on. It also takes a big old' 60x90mm image on 120 film, and that with a curved film plane that drops off less at the edges.
crazyg1 year ago
It looks and works good, :-)
As you already noticed in step 6 since lens remains in place this will not be a pin-hole camera, you only reduced the light coming from the lens, and also the shutter time. In your camera the principle to convey light to focus remains the lens refraction. That "pin-hole" is a nice experiment, but I really don't see which benefit it could improve... :-/
andyk75 (author)  andrea biffi1 year ago
Well, the benefit of the very small aperture is in fact a pinhole-like image.
The depth of field is enormously increased. This is what I like about pin-hole cameras.
Second benefit is the long exposure time, which blurs motion in the picture.
I just don't want to limit myself to only one technique.
Yeah, you added a f256 aperture to your camera, but benefits of pin-hole cameras are only that they don't need a lens ;-)
Very wide depth of field and very long shutter time are peculiarities needed to take unusual pictures, I won't associate them to pin-holes. Anyway it's good that you want to experiment new techniques, and that you have been able to modify an old camera which otherwise couldn't be appropriate.