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Innier (electronic) working of a camera

PostPosted: Sun May 11, 2014 1:13 am
by Eildosa

I have 21 coolpix l27, I wanted to use them for a 3d face scanner however I had no idea that iso and shutter speed could not be set in those low end camera.
I know you only do DSLR here but their inner working should be similar.

How is the iso set? does the microcontroller send a command to the lens/sensor and it return an image correctly amplified or is it a calculation done by the firmware in the motherboard micocontroller?

does communication betwen the motherboard uses a standard protocol such a spi or i2c? or is it a proprietary protocol?

Depending on the awnser I think I could build an interceptor board that let me act on those parameters.

Re: Innier (electronic) working of a camera

PostPosted: Sat Mar 12, 2016 1:19 pm
by mefistotelis
Before you get into changing FW, try using gphoto2 - it allows to control many cameras via USB, and changing all the parameters which camera announces as writeable.
It worked for my coolpix, I could take a photo by executing a command on PC. It also listed parameters to change, but I haven't tried changing any of them.