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11-03-2013, 09:15 PM   #1
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K-3 AA vs SR

As i read it, the new K-3 uses the Shake Reduction mechanism to apply Anti Aliasing.

How does it manage to accomplish AA and SR at the same time?
I know this is a question for Pentax engineers.
But it sure sounds like putting "all your eggs in one basket".
You oscillate the sensor at some given frequency for AA,
and then you shift it to compensate for camera shake to support SR.

That's one hell of a complex algorithm.
(if the hardware is up to it remains to be seen)
I see many a firmware update on this model.

All that said, I believe you can never have too many pixels.
It's all about sampling rate.
You gonna digitize the world - you capture as much detail as you can.

And all you dudes shouting for a Pentax FF.
Crap - it would have to have 30 - 40 Mega pixels.
YOU GOT THE CASH.
i don't

11-03-2013, 09:48 PM   #2
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Sum the vectors, i.e. the SR and AA need to be synced and the net sensor movement is what is needed.
11-03-2013, 10:21 PM   #3
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QuoteOriginally posted by CypherOz Quote
Sum the vectors, i.e. the SR and AA need to be synced and the net sensor movement is what is needed.
Like I wrote, a complex algorithm.
Very easy to get it wrong.
11-03-2013, 11:06 PM   #4
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I would say it a fairly easy algorithm. Since the AA is constant stable movement, you could look at it as just a DC offset of an AC voltage. Only that it is a constant AC offset instead.

11-03-2013, 11:08 PM   #5
Ole
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The AA simulation is but very small vibrations of the sensor. There is nothing complicated in adding that on top of the SR movements. The difficult part is SR, but that techniology has been honed through many years.
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