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Forum: Pentax K-3 & K-3 II
03-28-2014, 01:26 PM
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I haven't bought it... yet but I am very curious about the sensor shift feature. Looking into specs, I can find that the smallest shift is 16 pixels (0.0625/(23.5/6016)). That is probably accurate for images stitching. However, if the number of pixels was odd (and assuming RGGB square colour filter), then it would be possible to manually do what Hasselblad H4D-200ms does, that is a true colour image when shooting still objects. If it was done automatically that would be fantastic, but a manual possibility would also do, for starters.
As for the accuracy of the shift itself, I deduce it is good enough because if the camera is supposed to be able to track the stars based on a GPS data, it is able to manage subpixel sensor shifts. I don't know how much sense would it be for such a dense sensor to play with such little shifts, if there would be any noticeable gain, but I would love to try it out. And that would probably help mitigating moire effect much better than just shaking the sensor and so blurring the image. And if I am not mistaken in the aforementioned assumptions, everything seams to be on place but a corresponding option in the camera menu.
As for the sensor shift itself, having 384 pixel long shifts each way available, good lens and still object, it makes K-3 a 32 MPx camera - quite a "perk", I'll say.
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