pinhole lens?

[cosmoepic]

someone made a post on here about trying to make one and i was wondering what purpose it serves?

ive seen some examples of photos using one, and i just would like to know more about it

thanks!

 

[chrisburke]

(i'm the one who posted about it earlier) its just another type of photography

 

[cosmoepic]

care to elaborate alittle bit more? haha what does this achieve and how is it done?

 

[Joe&Caroline]

yes I 2 have wondered how to make a pin hoe LENS . I have made pinhole camera before in boy scouts. but would you actually make a modern lens into a pin hole lens?????

 

[AlexColeman]

You don't. You use a body cap, with a small hole through it.

 

[chrisburke]

i dont know how to elaborate on it... just like B&W is a type of photography, pinhole is a type of photography... and i didnt do anything to my lens, I just used the body cap from my camera...

Heres some cool samples I found:
http://krisdedecker.typepad.com/pho...04/23/pinhole_old_barn_by_integrity_of_li.jpg

http://www.f1point4.com/f1point4/images/qm_promenadedecktable.jpg

http://photo.net/learn/pinhole/kaia.gif

and this is something I found a while ago... 35mm DIY Pinhole camera

[ame]http://ca.youtube.com/watch?v=fC9SlWkL4L4[/ame]

heres the wiki...:
A pinhole camera is a very simple camera with no lens and a single very small aperture. Simply explained, it is a light-proof box with a single hole in one side. Light from a scene passes through this single point and projects an inverted image on the opposite side of the box. Cameras using small apertures, and the human eye in bright light both act like a pinhole camera.
The smaller the hole, the sharper the image, but the dimmer the projected image. Optimally, the size of the aperture should be 1/100 or less of the distance between it and the screen.
A pinhole camera's shutter is usually manually operated because of the lengthy exposure times, and consists of a flap of some light-proof material to cover and uncover the pinhole. Typical exposures range from 5 seconds to hours and sometimes days.
A common use of the pinhole camera is to capture the movement of the sun over a long period of time. This type of photography is called Solargraphy.
The image may be projected onto a translucent screen for real-time viewing (popular for observing solar eclipses; see also camera obscura), or can expose film or a charge coupled device (CCD). Pinhole cameras with CCDs are often used for surveillance because they are difficult to detect.

 

[Dubious Drewski]

http://krisdedecker.typepad.com/pho...04/23/pinhole_old_barn_by_integrity_of_li.jpg

That barn photo is amazing. That looks like it's less than a 10mm focal length! Hmm, now I want to try this. I wonder if I have any spare K Mount body caps laying around.