The New filter Drawer for EOS Lens,26.5mm thickness is independently designed by ZWO and specifically made to match with ASI cooled cameras and EOS lens. You can freely use the 2”mounted filter with it.
The dovetail groove is designed for ASIAIR PLUS to connect Vixen dovetail plate. It can help achieve more convenient and flexible installation methods compared to the original dovetail plate of ASIAIR PLUS.
ASIAIR PLUS is a smart WiFi device. It is equipped with a lightweight power management module, ample USB interfaces, and multiple dovetail mounting methods. With the rich features of the ASIAIR App, the whole procedure from device integration to image capture runs particularly smooth.
ASIAIR PLUS is the third generation of ZWO that has been continuously improved and newly designed since the first generation of ASIAIR was released in July 2018.
The ZWO ADC actually does work well. It takes a bit of practice and some searches through the internet on how to use, but if planets are low in the sky the ADC will provide a better image.