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Controlling shutter speed with jitter

May 30, 2011 | 12:21 pm

Hello :)

I basically have two questions:
- Is it possible to control the shutter speed of a camera with Jitter, allowing it to create long exposure photographs?
- If yes, can you control this on cameras such as the Playstation Eyetoy?

If anyone could answer these questions for me, and possibly point me in the right direction as to how, it would be greatly appreciated!


May 30, 2011 | 2:31 pm

I’m not 100% sure, maybe someone will correct me but shutter controls on a webcam/industrial digital camera aren’t the same as the conventional shutter on an SLR or other camera, I think there’s a built in ceiling as to how long you can leave the exposure open on a typical digital camera. To control parameters like the shutter you usually need an IIDC Firewire Camera such as:

http://www.ptgrey.com/products/dragonfly2/dragonfly2_firewire_camera.asp
http://www.unibrain.com/products/visionimg/fire_i_bc.htm

http://www.amazon.ca/Apple-iSight-FireWire-Computers-M8817LL/dp/B0000AKACN

And you will have access to the mechanics of the camera (through jitter, look in the IIDC support subpatch in jit.qt.grab).

Most webcams don’t allow you access to that kind of thing.


May 30, 2011 | 2:31 pm

I’m not 100% sure, maybe someone will correct me but shutter controls on a webcam/industrial digital camera aren’t the same as the conventional shutter on an SLR or other camera, I think there’s a built in ceiling as to how long you can leave the exposure open on a typical digital camera. To control parameters like the shutter you usually need an IIDC Firewire Camera such as:

http://www.ptgrey.com/products/dragonfly2/dragonfly2_firewire_camera.asp
http://www.unibrain.com/products/visionimg/fire_i_bc.htm

http://www.amazon.ca/Apple-iSight-FireWire-Computers-M8817LL/dp/B0000AKACN

And you will have access to the mechanics of the camera (through jitter, look in the IIDC support subpatch in jit.qt.grab).

Most webcams don’t allow you access to that kind of thing.


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