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-   Sony NEX-EA50 (all variants) (https://www.dvinfo.net/forum/sony-nex-ea50-all-variants/)
-   -   Auto Focus With Face Detection = Very Good (https://www.dvinfo.net/forum/sony-nex-ea50-all-variants/514811-auto-focus-face-detection-very-good.html)

Joel Corral March 10th, 2013 02:16 PM

Re: Auto Focus With Face Detection = Very Good
 
It's easy. Turn off face detection buy pressing the custom button. Set iris, shutter and exposure then turn on face detection.

JC

Tom Van den Berghe March 24th, 2017 12:25 PM

Re: Auto Focus With Face Detection = Very Good
 
I thought my FS100 had also face detection and spot focus but I can't find it. So the EA50 has it and the FS100 not?

Vince Pachiano March 24th, 2017 03:49 PM

Re: Auto Focus With Face Detection = Very Good
 
Quote:

Originally Posted by Ron Evans (Post 1782982)
IThe problem comes when it has been focused at wide angle and then zoom in closer. It will almost certainly be out of focus then.Ron Evans

https://en.wikipedia.org/wiki/Varifocal_lens

Ron Evans March 24th, 2017 05:00 PM

Re: Auto Focus With Face Detection = Very Good
 
I know what parfocal means. But one has to know both if the lens is parfocal and how to use it too. Not all lenses are parfocal and even if they are it is more difficult to focus at wide angle and expect the lens to be in focus at tele. That is why the recommended procedure is the reverse of that. Focus at tele and then frame for the field of view needed. Depth of field increases as one comes back from full tele position. A lot of modern cameras have electronic control of their parfocal performance and may not always be parfocal under all camera conditions. In other words the camera is refocusing what is really NOT a parfocal lens by itself but needs the camera to make it as such. True optically parfocal lenses tend to be really expensive.

This post is from 4 years ago do you have some reason to post ?

Tom Van den Berghe March 24th, 2017 10:40 PM

Re: Auto Focus With Face Detection = Very Good
 
have to film carnival here with steadycam so I prefer The FS100 above the nex-ea50 quality wise.
About 1 month ago I filmed also a carnival with fs100 and stocklens on manual focus and peaking.

There were lots of shots not in focus. So I read about face detection about the EA50 here and thought my FS100 has it also.

I will just shoot autofocus this time because I have no face detection.

Vince Pachiano March 25th, 2017 07:26 AM

Re: Auto Focus With Face Detection = Very Good
 
Quote:

Originally Posted by Ron Evans (Post 1929542)
This post is from 4 years ago do you have some reason to post ?

Don't blame me, blame Tom Van den Berghe

Ron Evans March 25th, 2017 08:10 AM

Re: Auto Focus With Face Detection = Very Good
 
Quote:

Originally Posted by Vince Pachiano (Post 1929574)
Don't blame me, blame Tom Van den Berghe

Sorry. But if you had not quoted me I would not have replied.


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