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Live view autofocus on Pentax cameras

Started 4 months ago | Discussions thread
OP mainoo Contributing Member • Posts: 592
Re: Live view autofocus on Pentax cameras

KPM2 wrote:

Hello mainoo

You did asked for the LV AF, but for your lens you must make a decision, if you will use them on FF or with a 1,5x crop APS-C. For example your 31mm is nearly a normal 46,5mm lens on a APS-C.

Only the K1 and K1 II are FF cameras. Their LV use CDAF and it is not so fast as cameras with PDAF/CDAF for LV. The only PDAF/CDAF for LV camera is the K70 and the new KF, but that are APS-C cameras.

The DA 55-300mm PLM is not a FF lens. I use mine with my K1 in the crop mode of the camera, or when I use FF, I crop later in PP.

I never tried out to use with my K1 the LV for a picture of a bicycle driver...I use the OVF and it's faster PDAF for that. So, sorry, I can't say much about that if that would work.

best regards. KPM2

Hello KPM2

Thanks for your helpful response. I am looking for an APS-C camera but hadn’t realised that the 55-300 PLM was an APS-C lens.

Given that the K70 has hybrid AF on the LCD, I imagine that would be much faster. If anyone has a view on how AF on the K70 LCD compares with the KP (for instance), I would be interested in hearing. One downside of the K70 is its selfie screen. As I would mainly be using the camera for AF at events, I may still consider it the AF implementation is surer.

Thanks again

mainoo

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