Player One Artemis-C Pro

player-one-astronomy.com/.../artemis-c-pro-imx294-usb3-0-color-cooled-camera

Type	Dedicated deep-sky camera
Cooled	Yes
Max. cooling	40 °C
Back focus	55 mm
Sensor	Sony IMX294 (color)
Users	17
Images	177
Most often used with	Askar 65PHQ

Community notes

The backfocus of the camera alone is 17.5mm. The camera comes with the required adapter rings to meet the 'standard' 55mm backfocus requirement, and player one also sells filter wheels, OAG's and filter drawers that maintain this same 55mm backfocus. but the camera alone should have the backfocus property set as 17.5mm