Caldwell catalog +1.
Author: Thomas Hanrath
A new object in my collection – the galaxy Caldwell 7.
3000 frames at the 1m telescope at Hoher List – my best planet shot yet.
More contrast under suburban skies — my real-world experience with the Baader UHC-L Booster Filter (50.4 mm).
Three projects, challenging conditions, and an honest technical conclusion from my backyard in Koblenz.
I photographed the Rosette Nebula again after five years. Several attempts, incorrect framing, discarded color channels, and unfavorable lighting conditions turned the project into an adventure.
I’m increasingly considering capturing RGB data with a one-shot color camera instead of continuing with mono and separate filters. While mono remains efficient, the RGB workflow is time-consuming, and early tests with two cameras have shown that it can significantly reduce routine overhead. As a result, my focus has shifted less toward pure image quality and more toward handling and workflow efficiency.
My final project of 2025.
I also used an exciting combination of technologies here.
A successful test for the future?
Finally, the full-frame Andromeda photo I set out to capture this year.
A next-level photo of Earth’s Moon! I tested several new techniques, and I’m really happy with the result.
Made optimal use of two nights. Quickly refreshed the collimation of the Cassegrain and completed the imaging session without any notable problems.