Advice from K1owners. please...

i-Berg
Posted 10/09/2017 - 05:49 Link
pschlute wrote:


I have seen comments that AF can be a bit quicker in crop mode. I don't know whether that relates only a lens originialy made for digital or not. I have not tested this out.
Peter, I expect it will be because the 33 AF sensors on the K1 cover more of an APSC-sized cropped frame than they do for the full frame, and secondly as the crop factor is 1.5x for APSC, all objects in the viewfinder will appear to be 1.5 times larger and thus easier 'targets' for the AF system.
pschlute
Posted 10/09/2017 - 09:06 Link
i-Berg wrote:
pschlute wrote:


I have seen comments that AF can be a bit quicker in crop mode. I don't know whether that relates only a lens originialy made for digital or not. I have not tested this out.
Peter, I expect it will be because the 33 AF sensors on the K1 cover more of an APSC-sized cropped frame than they do for the full frame, and secondly as the crop factor is 1.5x for APSC, all objects in the viewfinder will appear to be 1.5 times larger and thus easier 'targets' for the AF system.
The AF sensors are in the AF sensor....how does it make a difference based on the crop mode chosen ?

Choosing crop mode makes no difference to the size of the objects in the viewfinder, nor to the size the AF system can see. I think you have a misunderstanding of "crop factor"

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