Sony a9 focus issue

bnorthr

Member
Joined
Jul 4, 2020
Messages
11
Location
America
Format
Hybrid
I just bought a used Sony a9 (the 2017 "mark 1" version, with the latest firmware) and I've hit an issue with focus tracking. I'm using high-speed drive mode, "AF-C" continuous focus mode, "Tracking: Expand Flexible Spot" Focus area, and back button focus. When I hold down the focus button it begins tracking as expected, but when I press the shutter button without releasing the focus, the lens immediately de-focuses and all the photos in the burst are ruined. This only happens when the shutter is electronic. Anybody seen this issue before? Perhaps there's some setting I need to change to correct this?
 

jvo

Subscriber
Joined
Dec 6, 2008
Messages
1,751
Location
left coast of east coast
Format
Digital
ah, the nostalgia of the analogue world... remember when the advice "needs a cla" fixed 90% of the problems? in the 21st century frontier i guess it's "replace the chip"?

i hope someone has some better advice for you...

jvo
 
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