How does a camera does his trick ? Well for nowadays it’s all digital of course, but it used to be analogue. An eternity or 2 ago ( In 1826, to be a bit more precise ) Nicéphore Niépce first managed to fix an image that was captured with a camera, It was called ‘View from the Window at Le Gras’. Not much details are known of this photo, but at least eight hours or even several days of exposure in the camera were required, and it had to been a similar ‘camera’ like our tin can camera over here.
The easiest way to explain what’s happening is a simple can like this one. The white thingy is photosensitive paper. And you can off course see the can it self. And in the front there is a tiny hole. As tiny as a pin,..that’s why we call it a pinhole isn’t it ?
Well, the whole camera can be explaned from our cheap bastard here!
How it works;
In a dark room you put the light sensitive paper inside (It’s light sensitive, so it needs to be dark )
Then you put an dark paper over it and tape that
Then you put your finger on the hole.
Now go outside and put the camera on a pole or fence or anything where it’s steady.
Then get your finger about 10 seconds off, when the weather is bright
And now you want to know what you see don’t you ? Well if this wasn’t a fantasy, and you really went inside an got your finger over there off again, would develop that picture in the bath’s needed. Google on ‘Pinhole Photography’
and be surprised.
But what has this to do with me understanding my camera ?
Well every step of photographing can be explained by this camera !
The sensitivity of the paper is the ISO
The time your finger gets of that hole is your shutter time
And the size of the hole will be your apperture
And off course the price of the can is the price of the camera ;) !
See you next time when I tell you more about ISO
Kick some fun !! Have you ever made a pinhole picture ? Show us with
#PoenNU and tag us on Threads, Instagram or Facebook !!
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