How does image stabilization work ?

BADGER.BRAD

BADGER.BRAD

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Hello all,

How does in camera/lens image stabilization work ?

Thanks all
 
Depends on the camera for in camera.
Some the sensor moves others you don't get the full read out and the image moves around the sensor.
 
robj20 said:
Depends on the camera for in camera.
Some the sensor moves others you don't get the full read out and the image moves around the sensor.
Click to expand...

Really? My money was on Voodoo.
 
Mine just varies on how much rum I had the night before . . . :jimlad:
 
robj20 said:
Depends on the camera for in camera.
Some the sensor moves others you don't get the full read out and the image moves around the sensor.
Click to expand...
Does Birmingham and Manchester stop at this train?
 
The principle is quite simple.

A solid state gyro and an accelerometer detect the direction and rate of camera movement.
A microprocessor then takes the information, and uses it to shift with electromagnets either a lens element (or group of elements) or the sensor to effectively cancel out the camera movement.

This can be done at many times any possible shutter speed, so is very effective.

How the information is processed, and the effectiveness of the mechanical design determine how well it works, and accounts for the difference between different makes.
 
Thanks all, I had thought it must be electro mechanical rather than purely electronic as I couldn't see any way pure electronics could do this. Until robj20 put this in
robj20 said:
Some the sensor moves others you don't get the full read out and the image moves around the sensor.
Click to expand...

I take by this you mean the image is centered on the sensor but it is smaller so it has the room to move in any direction on the sensor. Does this mean the sensor is bigger than quoted Say 20mp but only 15 is used ? Would you only ever get 15mp out of the camera or is it reduced only when image stabilization is on ? All Very interesting. Earlier today I went on a dog walk up river along side the river Severn I realized I had never tried the video recording function on my trusty everyday carry Nikon point and shoot so thought I'd give it a go , while the quality was o.k ( not great) there was no way I could hold it any where near level . This got me thinking about this subject which I had never really thought about before.
 
Last edited:
BADGER.BRAD said:
Thanks all, I had thought it must be electro mechanical rather than purely electronic as I couldn't see any way pure electronics could do this. Until robj20 put this in


I take by this you mean the image is centered on the sensor but it is smaller so it has the room to move in any direction on the sensor. Does this mean the sensor is bigger than quoted Say 20mp but only 15 is used ? Would you only ever get 15mp out of the camera or is it reduced only when image stabilization is on ? All Very interesting. Earlier today I went on a dog walk up river along side the river Severn I realized I had never tried the video recording function on my trusty everyday carry Nikon point and shoot so thought I'd give it a go , while the quality was o.k ( not great) there was no way I could hold it any where near level . This got me thinking about this subject which I had never really thought about before.
Click to expand...
Exactly its called Electronic Image Stabilization as opposed to Optical Image Stabilization.
Probably best found on mobile phones and things like GoPro cameras.
 
robj20 said:
Exactly its called Electronic Image Stabilization as opposed to Optical Image Stabilization.
Probably best found on mobile phones and things like GoPro cameras.
Click to expand...
And the Panasonic G100 (but only for video).
 
for those who really need to know , theres a secret bit of cord at the side of the camera . you pull it to start the gyroscope spinning hmmmmmmm
 
Sangoma said:
The principle is quite simple.

A solid state gyro and an accelerometer detect the direction and rate of camera movement.
A microprocessor then takes the information, and uses it to shift with electromagnets either a lens element (or group of elements) or the sensor to effectively cancel out the camera movement.

This can be done at many times any possible shutter speed, so is very effective.

How the information is processed, and the effectiveness of the mechanical design determine how well it works, and accounts for the difference between different makes.
Click to expand...
my explanation sounds easier
 
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