ZWO ASI220MM MINI [MONO] CDK If your corrector or flattener/reducer

If your corrector or flattener/reducer requires a backfocus length other than 55mm

The Baader Hyperion 68° 8mm Modular eyepiece uses high quality Phantom group-coatings for maximum contrast and zero internal reflections

Like a Barlow lens

Standard Barlow elements often can not provide enough magnification for taking images of the planets

ZWO ASI220MM MINI [MONO] CDK If your corrector or flattener/reducerThe ZWO ASI 220MM Mini is a monochrome planetary and guiding camera containing the SC2210 CMOS backlit mono sensor which has a diagonal of 1 1. 8" and a resolution of 2. 07 MP. The 220MM Mini can be considered a successor to the popular ASI 290MM Mini, with bigger pixels and increased sensitivity in the near infrared. The sensor has a maximum QE up to 92% at 500nm. The sensor has very low readout noise, as little as 0. 6e . Its 4m pixels and high