The Sony Focusing Flaw
Mar 14, 2021 11:28:14 #
wireloose wrote:
It sounds like you have lock on AF turned on. For the A7Riii go to menu 1- page 5- focus area and then the last setting is lock-on AF. Make sure that is off. There is also a center lock AF on page 6 you want off. I can highly recommend the Friedman books on each of these Sony’s, the menu is so complex I find myself going back periodically even after 2 years with this camera and 6 or so with earlier models.
Thanks for trying. I have Friedman for A7R4.
Mar 14, 2021 11:38:39 #
Cameralark
Loc: Torrington, CT
If I were to suggest a new answer it would be exactly what was said re lock-On AF. Turn it off.
Mar 14, 2021 12:15:47 #
BurghByrd
Loc: Pittsburgh
joer wrote:
You are focused on a subject and you shift the focus to another area, then focus back on the subject and it won't focus...it stays locked on the last focus until you shift the focus to another area...then it will focus back on the original subject.
You are focused on a subject and you shift the focus to another area, then focus back on the subject and it won't focus...it stays locked on the last focus until you shift the focus to another area...then it will focus back on the original subject.
Could it be because the camera is set on some kind of focus tracking algorithm?
Mar 14, 2021 12:39:20 #
Mar 14, 2021 13:38:14 #
joer wrote:
This is something nobody seems to talk about. I be... (show quote)
I have an A7S, A7 III, A6000, A6100 (and previously an A7R, A7R II, A7 II and RX10 III) and RX10 IV. Never encountered the problem, maybe because I use either Center or Flexible Spot focus on all the cameras?
bwa
Mar 14, 2021 13:41:30 #
billnikon wrote:
NO. It has never happened. I believe it is an oper... (show quote)
You did read my post closely.
Mar 14, 2021 13:42:46 #
BurghByrd wrote:
Could it be because the camera is set on some kind of focus tracking algorithm?
Yes it is. You have given me an idea...thanks.
Mar 14, 2021 14:46:42 #
I have had a similar problem with my a7R4. It was operator error. I had the touch screen turned on and my nose would hit the screen and move the focus point when I would look throught the viewfinder. I'm glad i'm not Pinocchio otherwise I would never be focused....
Mar 14, 2021 15:18:49 #
wireloose wrote:
It sounds like you have lock on AF turned on. For the A7Riii go to menu 1- page 5- focus area and then the last setting is lock-on AF. Make sure that is off. There is also a center lock AF on page 6 you want off. I can highly recommend the Friedman books on each of these Sony’s, the menu is so complex I find myself going back periodically even after 2 years with this camera and 6 or so with earlier models.
I don't have these menu items. I don't use the AF On button...its reprogramed. My priority settings are in AF...tried release and balanced to no avail. I turned off tracking...same results. I'm in electronic shutter, sound turned off.
I'm astounded that nobody has encountered it.
To be more specific, focus lock on fails when the subject is very small, or consists of mostly horizontal line. When focusing on a pattern such as a chain link fence or an Arborvitae bush then going to a subject that is small and doesn't have vertical lines it won't focus. It happens in all focusing modes, tracking on or off on both my best lenses. Its a design flaw. Try it for yourself.
I have been using Sony for over 2 year, 5 models. It doesn't prevent me from acquiring focus since I know how to quickly get around this...it just annoys the hell out of me and sometime causes me to obsess. At the cost of these cameras they should be flawless.
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