I guess the camera does a sensor cleaning routine before shutting off completely and retracting the lens.

With most third party lenses the aperture and focus must be set at the lens. Compatible does not necessarily mean the camera can control the lens. If the lens supports autofocus the camera might be able to control the aperture, too.

I'm trying to take my pictures ARW (RAW) format, but every time, it saves it as a JPEG. I've checked multiple times to make sure the correct format is selected, but when I run off a bunch of shots, they've all saved as jpegs. Do you have to wait an extended period of time between shots?

Hi all,  I purchased a new a6100 12 days back. It was fine until it started behaving strangely 3 days back ( which is the cause of my worry ).  Once or twice in 5 times, when I turn off the camera, the lens ( kit lens ( 16-50 mm ) which I've been using till now ) doesn't retract. After turning off the camera, a "click" sound comes,  then a shutter click sound comes. And then the lens retracts slowly.  Is the product defective? Or the lens Is defective? Is it an indication of the incoming product failure? I'm worried because this camera is not even 2 weeks old from the date of purchase.  If this is a fixable issue, then what should I do ? 

the problem is not visible while using the camera and i dont know  why is not visble on videos, only in pictures. i reseted the camera and the  problem presist ill take it to a professional authorized by sony  on monday but would like to know if someone has had this problem before i havent found a similar problem on any forum. i tryed many lenses ( even knowing that the problem should come from the camera.) my camera is an A7II  bought it in 2019 new and has a shutter count of 17,300 images.