Problem with constant aperture

[vrimarev]

Hello! Since April 2022 I use Sony A7 iii. I received the camera in Riga, Latvia, at the Sony Center.

Using aperture priority.  Aperture value must be constant!

For example, I set the value to 8 or 11 for shooting landscapes, after some time I observe that the camera is set to 4, - a spontaneous change in the aperture. In aperture priority mode this must not be!

Please tell me how to solve this problem.

With best regards,

Viktor Rimarev

[danardeng]

Never experienced that issue.

Which lens had you used?