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Dpreview does away with formal resolution tests in their reviews



 
 
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Old May 12th 12, 09:06 PM posted to rec.photo.digital.slr-systems,rec.photo.digital
Ben Brugman
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Default Dpreview does away with formal resolution tests in their reviews


Sense it (gyros).
Rotate the sensor in opposition (keep it 'still' wrt to the scene).


As I say in the other recent post the image sensor is mounted on an
articulation base with 5 axis freedom (3 angular, 2 translation).


This is hightly unlikely,

Pitch and yaw.
Is normaly counteracted by x and y movement of the sensor.

X and Y translations of the camera.
Can be compensated by x and y movement of the sensor. But is complex,
because the distance to the subject is important. (On infinity no movement
at all is needed, for closeups movement is needed.)


For the roll of the camera, the shift of the sensor can not counteract the
movement. So the sensor has to be rotated within the camera.

The rotation of the sensor is new. And that the camera compensates for 5
directions of movement is new as wel. But this can be done with 2
translations of the sensor and one rotation of the sensor.

For the sixth axis of freedom, movement of the camera towards or from the
subject, this has for general fotografie no visible effect. For very close
up it could have a visible effect, but using the AF to keep focus on the
subject, the motion will hardly have any effect.

So 5 axis of freedom can be corrected by 3 axis of freedom for the sensor.
(x,y and rotate)


Ben

 




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