RedCat 51 is a lightweight and portable telescope-lens from William Optics. With 250 mm of focal length at f/4.9 it can be used for widefield deeps space imaging or during daytime as a tele-photo lens. I've paired it up with ToupTek ATR3-16000-KPA - a cooled camera with large color sensor. Here is my initial take on the setup.
Takahashi Collimation Telescope can be used to collimate RC, DK, SCT and other Cassegrain telescopes using nothing but some light. Let see how it all works out.
Astrophotography is an interesting and complex hobby. There is a lot of tutorials on the web but usually they focus on one topic and general overview is what is missing. Such complex astrophotography overview can be handled by a good book - but does books are able to keep up with the flow of new technologies and astrophotography techniques development? I've decided to check it out and ordered few more recent books about astrophotography. Here is a short review of them.
In my look at planetary imaging cameras for 2016 I nominated IMX224 as best color sensor and sensors such as IMX178, IMX265, IMX250 and IMX252 as best mono variants. We are almost half a year into 2019 and those picks are still one of the best if not the best. What did changed and what is upcoming for Solar System imaging? Let’s find out.