Astronomy, Telescope, Astrophoto, Astrophotography, Cooled Camera, Nature, Photography, Clear Skies, PixInsight, EKOS, INDI

Tag: Method

Old flats are like old toothbrushes

Post author By Thomas Hanrath
Post date 5. March 2025
No Comments on Old flats are like old toothbrushes

Here is a cropped image where I used an incorrect or outdated flat.

Old flats: Poor correction, bad results.
Fresh flats: Proper calibration, much better image quality.

Tags Method, Software

Starting points for better Astrophotography Guiding

Post author By Thomas Hanrath
Post date 24. August 2023
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My results after "a lot of steps" for better guiding.

Some starting points for those who are still looking for better guiding (like me) for astrophotography. If you got more good ideas for better guiding, please let me know in the comments.

Tags guiding, Method

UV/IR cut filter – yes or no – a guiding example

Post author By Thomas Hanrath
Post date 9. February 2023
No Comments on UV/IR cut filter – yes or no – a guiding example

Upper left: Guiding WITHOUT UV/IR cut filter. Upper right: Guiding WITH UV/IR cut filter. Lower center: Guiding WITH UV/IR cut filter and very good balance and seeing.

Is it necessary to use an UV/IR cut filter? If yes, is this something you can really see in your results?

Tags Filter, Method, UV/IR cut

How does CANON Banding look like?

Post author By Thomas Hanrath
Post date 27. October 2022
1 Comment on How does CANON Banding look like?

Here is an example of CANON banding at the star Regulus. This picture was shot with a CANON M100 at 400 ISO and an exposure time of 10 seconds. This picture is stretched massively to show the banding effect.

Here are a few examples of the so called CANON Banding, just to show how it looks like. I had to stretch a lot to get some.