Live view autofocus on Pentax cameras

KPM2 wrote:

Hello JeremieB

JeremieB wrote:

KPM2 wrote:

Hello JeremieB

JeremieB wrote:

My understanding is that the K3III would have the best LV AF. The K70/KF should normally be the best as it shares something with MILCs (phase detect AF points on the sensor supposed to help CDAF in LV), but in the end not really - I'd say K3III is better.

You don't get zebras but red highlight alerts. You can't change the color.

On K3III you have 2 focus peaking modes: one that emphasizes contours, the other shows only contours. Both can be useful.

Even with K3III, AF in LV is rather slow. With K3III you have less risk of having it focusing all the way from close to infinity and back (which can take ages on K70). So it's delicate, and AF C of joggers or other moving things can be frustrating honestly. With patience and precision it's usable not much more. On static subjects it's ok.

You get face detection and AF tracking, but not both at the same time: it detects the faces correctly but won't AF-C on detected face(s).

Personally 99% of the time when I use LV, I use it in manual focusing with focus peaking (landscape, macro). Whenever fast AF matters, I use OVF.

I did read that the Catch In focus works very fast with the K3 III. Maybe that would be a good solution for the OP, when he use his manual focus lens, to use the OVF and Catch In focus for moving subjects ?

Did you try out already the Catch In focus with your K3 III ? ... do it react really very fast ?

Best regards. KPM2

I tried catch in focus but only through OVF.

The catch In focus works only with the OVF. Was it fast and accurate with your K3 III ?

best regards. KPM2

Oh ok I misunderstood,

Yes it works very well, I used it with the old M* 300mm lens and I had good success rate with seagulls in flight so not bad Not as good as with AF lens but clearly much better than in pure MF.