A7s Object Focus Tracking at DVinfo.net

Peter Rush · July 5th, 2015, 10:51 AM

Has anyone figured this out?

I've found an article here by Gary Fong but it doesn't translate for video - seems to be just for stills

Configure your Sony Mirrorless camera for autofocus object tracking | Gary Fong Photography Tutorials

You can set the focus mode to 'Lock On AF' which works for stills but seems not to work for video?

Pete

Roger Martin · July 6th, 2015, 06:22 PM

For A7s Video
By closing the Aperture (increasing the f-stop number) you can increase the DOF.
This makes tracking a moving object easier.
You can also raise the shutter speed.

Peter Rush · July 7th, 2015, 12:51 AM

Thanks - I get that Roger but what I want is proper object tracking - something my EA50 does and my Sony CX Handycams - If you look at the Gary Fong video it seems possible with the A7 but maybe just for stills and not while filming.

Roger Martin · July 7th, 2015, 08:10 AM

My GH4 is much better at FullTime AutoFocus and Tracking.
Afraid we will have to wait for the next version on the A7s.
The A7II and especially the A7R II are supposed to be much improved.

In the mean time the A7s is "good enough" for my work and far better in poor low light.

July 5th, 2015, 10:51 AM	#1
Peter Rush Inner Circle Join Date: Nov 2008 Location: UK/Yorkshire Posts: 2,069	A7s Object Focus Tracking Has anyone figured this out? I've found an article here by Gary Fong but it doesn't translate for video - seems to be just for stills Configure your Sony Mirrorless camera for autofocus object tracking \| Gary Fong Photography Tutorials You can set the focus mode to 'Lock On AF' which works for stills but seems not to work for video? Pete

July 6th, 2015, 06:22 PM	#2
Roger Martin Regular Crew Join Date: Oct 2010 Location: Prunedale California Posts: 108	Re: A7s Object Focus Tracking For A7s Video By closing the Aperture (increasing the f-stop number) you can increase the DOF. This makes tracking a moving object easier. You can also raise the shutter speed.

July 7th, 2015, 12:51 AM	#3
Peter Rush Inner Circle Join Date: Nov 2008 Location: UK/Yorkshire Posts: 2,069	Re: A7s Object Focus Tracking Thanks - I get that Roger but what I want is proper object tracking - something my EA50 does and my Sony CX Handycams - If you look at the Gary Fong video it seems possible with the A7 but maybe just for stills and not while filming.

July 7th, 2015, 08:10 AM	#4
Roger Martin Regular Crew Join Date: Oct 2010 Location: Prunedale California Posts: 108	Re: A7s Object Focus Tracking My GH4 is much better at FullTime AutoFocus and Tracking. Afraid we will have to wait for the next version on the A7s. The A7II and especially the A7R II are supposed to be much improved. In the mean time the A7s is "good enough" for my work and far better in poor low light.