First light of my new Tecnosky APO 90mm F6 FPL55 Owl series with a TSCFRED90 0.8x reducer/flattener. Effective focal length is 432mm at F4.8. I received the scope just a few days before a trip to dark skies, so very quickly I had to test the scope (using PixInsight WavefrontEstimator), adapt it to my camera, and build a DIY focuser for it, a bit stressing. It seems I have to try to fine tune the backfocus distance, not sure if I can improve stars shapes at the corners (hope so!). Had some issues with guiding the first night. 

This image is featured in the timelapse "Oasis de Oscuridad" available at https://www.youtube.com/watch?v=_NHOnvOT9uM .

This image has been highlighted by the European Space Agency (ESA) in its spanish Twitter account.

Dates: 12 & 18/08/2021
L: 36x 180s bin1
R,G,B: 30x 180s bin1