Originally posted by house I always assumed Pentax slow video autofocus, like when using back button af during video with K-1, was intentional. Video vill be unusable if it instantly refocuses during video. With flawless tracking it would work perhaps, but even then it doesn't know your intentions.
Even so, it wouldn't be hard to provide the option in the AF settings. The HDDA*16-50 PLM is capable of fast AF. AFS is only useful for fixed focus though.
Originally posted by repaap Thanks for update an explaining. I did have a look at to my eye it does nice job, not the fastest, but it is smooth. And this is important. Althou some more advanced hybrid cameras have adjustment, and all that, this is pretty nice, and what it more important...it does work.I agree. I have looked at several videos from youtube and they have used cameras like C70 and A7SIII. Sure, focus is fast, but when it does jump around, it does make it confusing. Fast, yes, but all over the screen.
This is big improvement all in all for pentax
I agree, it's really good! The problem with fast AFC in video on other cameras is that the AF tends to "stutter" if something confuses the AF system (rapidly jumping in and out). This sort of setup is perhaps less likely to do that. Even so, given that the lens can focus fast, I'd like to have the option to change the speed of AF in AFC. However, another option would just be to switch between AFC and AFS depending on the circumstances. AFS is only useful for fixed focus - after starting the recording, AFS is disabled. I just tested the touch AF in AFC though and it did work, so I'm not sure what happened when I tried it before.
The money I spent on my camcorder isn't wasted, because for video with a long zoom, it's still going to be easier to use.