ASI 290 dust motes

mitchellduke

The new ASI290mm I received had dust motes on the sensor. The good news is I removed them with a blower, however now they have multiplied. I have tried a lense pen, and a blower with no luck. Its like the dust is magnetized to the lense covering the sensor. Anyone have any sure fixes to this issue?

Sam@ZWO

I assume the dusts are on the protect window

so you'd better to attach the 1.25" adapter and cap to keep it instead of the all sky lens

mitchellduke

The protector lens or AR lens is bad. I could never get three spots to go away, and finally I saw the three little pits in the glass. These are the same spots I have had since the camera arrived.

Sam@ZWO

please contact us to try a new protect window

darber99

Can someone please post a pic of these? I think they may be on my 224MC as well.