Zoom in/out while shooting video

f22 · 11-25-2016, 04:02 PM

I may be missing something in the manual, but when I am in video mode and I'm slowly zooming in or out on the subjects, the autofocus doesn't seem to be readjusting and the subjects become unfocused & blurry. Should I have the K-50 focus mode switch in the AF.C mode when I'm doing this, versus AF.S? Is there anything else I need to set when I am zooming during a video to keep it continually reacquiring focus? All i see in the manual refers to stills.
Thanks

**lithedreamer** · 11-25-2016, 05:45 PM

Originally posted by f22

I may be missing something in the manual, but when I am in video mode and I'm slowly zooming in or out on the subjects, the autofocus doesn't seem to be readjusting and the subjects become unfocused & blurry. Should I have the K-50 focus mode switch in the AF.C mode when I'm doing this, versus AF.S? Is there anything else I need to set when I am zooming during a video to keep it continually reacquiring focus? All i see in the manual refers to stills.
Thanks

You either need to hold down the AF button when you want the camera to autofocus, or pull your focus manually as you zoom. I recommend the latter. It comes naturally with practice, and works silently and smoothly with any lens.

Adam · 11-25-2016, 10:30 PM

Yup, that's right. There is no continuous AF

f22 · 11-26-2016, 08:56 AM

Originally posted by Adam

Yup, that's right. There is no continuous AF

Thank you Adam. Do you know if the K-70 or K-1, or any other Pentax models do support continuous autofocus of subject's during movie mode when performing a push-in or push-out (zooming)?

I don't shoot a lot of video, but that seems like a valuable feature; zoom in in/out adds to the "interest factor" in video's.

Thanks

Adam · 12-01-2016, 12:03 PM

Originally posted by f22

Thank you Adam. Do you know if the K-70 or K-1, or any other Pentax models do support continuous autofocus of subject's during movie mode when performing a push-in or push-out (zooming)?

I don't shoot a lot of video, but that seems like a valuable feature; zoom in in/out adds to the "interest factor" in video's.

Thanks

The K-70 does, when paired with a DC or PLM lens. The implementation is far from impressive, though

11-25-2016, 04:02 PM	#1
f22 Senior Member Join Date: Dec 2015 Photos: Gallery \| Albums Posts: 117	Zoom in/out while shooting video I may be missing something in the manual, but when I am in video mode and I'm slowly zooming in or out on the subjects, the autofocus doesn't seem to be readjusting and the subjects become unfocused & blurry. Should I have the K-50 focus mode switch in the AF.C mode when I'm doing this, versus AF.S? Is there anything else I need to set when I am zooming during a video to keep it continually reacquiring focus? All i see in the manual refers to stills. Thanks

11-25-2016, 10:30 PM	#3
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	Yup, that's right. There is no continuous AF Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

12-01-2016, 12:03 PM	#5
Adam Administrator Site Webmaster Join Date: Sep 2006 Location: Arizona Photos: Gallery \| Albums Posts: 51,595	Originally posted by f22 Thank you Adam. Do you know if the K-70 or K-1, or any other Pentax models do support continuous autofocus of subject's during movie mode when performing a push-in or push-out (zooming)? I don't shoot a lot of video, but that seems like a valuable feature; zoom in in/out adds to the "interest factor" in video's. Thanks The K-70 does, when paired with a DC or PLM lens. The implementation is far from impressive, though Adam PentaxForums.com Webmaster (Site Usage Guide \| Site Help \| My Photography) PentaxForums.com server and development costs are user-supported. You can help cover these costs by donating or purchasing one of our Pentax eBooks. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, KEH, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

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11-25-2016, 05:45 PM	#2
lithedreamer Site Supporter Join Date: Sep 2013 Photos: Gallery \| Albums Posts: 1,799	Originally posted by f22 I may be missing something in the manual, but when I am in video mode and I'm slowly zooming in or out on the subjects, the autofocus doesn't seem to be readjusting and the subjects become unfocused & blurry. Should I have the K-50 focus mode switch in the AF.C mode when I'm doing this, versus AF.S? Is there anything else I need to set when I am zooming during a video to keep it continually reacquiring focus? All i see in the manual refers to stills. Thanks You either need to hold down the AF button when you want the camera to autofocus, or pull your focus manually as you zoom. I recommend the latter. It comes naturally with practice, and works silently and smoothly with any lens.

11-26-2016, 08:56 AM	#4
f22 Senior Member Join Date: Dec 2015 Photos: Gallery \| Albums Posts: 117 Original Poster	Originally posted by Adam Yup, that's right. There is no continuous AF Thank you Adam. Do you know if the K-70 or K-1, or any other Pentax models do support continuous autofocus of subject's during movie mode when performing a push-in or push-out (zooming)? I don't shoot a lot of video, but that seems like a valuable feature; zoom in in/out adds to the "interest factor" in video's. Thanks