DV Info Net

DV Info Net (https://www.dvinfo.net/forum/)
-   Sony HVR-Z1 / HDR-FX1 (https://www.dvinfo.net/forum/sony-hvr-z1-hdr-fx1/)
-   -   Auto Focus on Z1 (https://www.dvinfo.net/forum/sony-hvr-z1-hdr-fx1/111812-auto-focus-z1.html)

Dennis Cummins January 7th, 2008 09:17 AM

Auto Focus on Z1
 
Wondering if anyone can help me. Recently my Z1ís auto focus has been acting erratic. Every so often it goes out of focus for a few seconds. I was filming an interview the other day. The camera was locked down on a MCU of a person. About a minute in it started to go out of focus? The person wasnít moving so im not sure whats wrong. Has anyone else had this problem?? Should I just reset it to the factory settings?? Cheers.

Bill Busby January 7th, 2008 10:16 AM

I don't own a Z1 but I was just curious why you would be on auto focus & not manually focused for such a static shot to begin with.

Bill

Vito DeFilippo January 7th, 2008 01:35 PM

Hi Dennis,

I would simply do a quick test of your autofocus on something else. I find the autofocus of my Z1 is not as good as a PD150, for example, and sometimes will hunt a bit. It's especially bad on low contrast, low light, or backlit subjects.

That aside, you would be better off using manual focus, anyway. For sure in an interview setting as Bill notes.

Dennis Cummins January 7th, 2008 05:49 PM

well it was a short interview at a wedding, we normally leave it on autofocus as your always on the move when shooting weddings...

I did a test on it after the wedding and i think something is wrong as it keeps happening??

Vito DeFilippo January 7th, 2008 07:05 PM

Hi Dennis,

If you actually think there is something wrong, I guess you would have to have it looked at. Hopefully it's under warranty...

Good luck.

Gabriel Chiefetz January 7th, 2008 11:49 PM

The Z1 (FX1 in my case) autofocus lets me down all the time. As another poster has mentioned, low light can can cause it to hunt like crazy. Bright backgrounds are also often a problem. If your subject has dark skin, and the background is even somewhat bright, you're in big trouble. I only use the autofocus on this camera in a real emergency.

Bob Hart January 8th, 2008 06:32 AM

If you are a lazy near-sighted wretch like me whose close-up vision is now also shot due to ageing, camcorder autofocus is a godsend when used sparingly and sensibly.

My personal preference is to compose my shot, then go in close with the zoom to frame only the subject, set autofocus on the nose whiskers or sneering top lip or cute top lip whichever is present, switch back to manual to lock it off, then back off the zoom to the original framing.

Ervin Farkas January 11th, 2008 02:03 PM

Unfortunately autofocus can be fooled by many things - some camcorders handle it better than others. I find that autofocus only works for me in the manner described by Bob above, in emergency situations, when filming an event. In all other situations manual focus gives much better results.


All times are GMT -6. The time now is 05:32 PM.

DV Info Net -- Real Names, Real People, Real Info!
1998-2020 The Digital Video Information Network