Bright areas on ASI2600MM Pro 300s Master Dark

CingStars

I just received my ASI2600MM Pro two days ago and as I was generating a darks library (since the weather is too crappy to do anything else), I noticed a couple of bright areas on the upper right and lower right of a bias-subtracted 300s master dark. I have the 2600MM bolted directly to a filter wheel, taped everything up to see if there were light leaks, generated a dark in a completely dark room, and changed the power supply. Nothing seemed to eliminate the bright areas. These areas become noticeable when the exposure of the dark is >= 300s and gets worse as the exposure time increases.

This is the first mono camera I've used (I've been using an ASI2600MC Pro for about a year) and don't know if this is normal or not. To be honest (although it seems crazy since this camera is advertised as not having any) it looks like amp glow to me. (You'll have to zoom in on the jpeg (https://drive.google.com/file/d/1ExQMQ2Cp_1_741uaq-QQt7px1dLJoOlZ/view?usp=drive_link) to see the bright areas.)

Any advice or input would be greatly appreciated! Thanks.

Prismokay

Amp glow it seems, which is really wierd considering IMX571-M is a BSI chip, so it shouldn't have amp glow. Potential manufacturing defect is likely.

CingStars

Prismokay Thanks. Yes, I think it's very odd since the camera is advertised as having zero amp glow, yet I'm at a loss to explain what else it could be. I'm also waiting to hear back from ZWO and Agena Astro to see what they think.