Official StarTools support forum

How much did you have to crop it by, Chris?

Even a fairly hefty 100 px per side crop doesn't get rid of the effect and the owner (who is a pretty experienced astro imager) has already cropped it (according to post 20 in the linked thread).

On another forum an experienced imager has posted an LRGB image that he is not satisfied with. He has put the individual stacks on dropbox and invited others to process them to see if they can improve on his work. While I wait to get some worthwhile data of my own, I thought I would try his, but whe...

Many thanks for that, Ivo.

Will have a play this coming (cloudy) weekend and see how it goes.

In the article about colour balancing, Ivo mentions: “Correct colouring may be achieved by shooting deep luminance data with light pollution filter in place, while shooting colour data without filter in place, after which both are processed separately and finally combined.” Does anyone have a workfl...

I am no expert but once you lower the ISO below the unity gain point (which is different for different cameras) in the words of Steve Richards 'you are wasting photons'. Having said that, every set and circumstances are different and what works for one doesn't always work for another. But if sky glo...

Bear in mind I don't know what scope, camera or mount you are using, but when I imaged it this time last year, I used 180 second subs at ISO1600. This was with the Astronomik CLS-CCD clip filter on a Canon 700d attached to my 8" Skywatcher. These produced a histogram that was barely 25%. A 300 secon...

M33 is quite a spread-out target and quite faint as a result. 60 secs at ISO 400 is going to be a challenge to get the signal out of the noise. Can you get to a less light polluted site for imaging, or if not and your light pollution is mainly caused by Sodium street lamps, consider a light pollutio...

Ivo Sorry to report but 1.4.324 Win 7 64 bit crashes if, after binning, one alters the % slider and then clicks the 'keep' button. While the spinner is running the button isn't grayed out. (Pretty silly behavior by the user, I know, but I managed it.) The Win 7 crash report reads: Problem signature:...

I don't think your set up is so bad, I got this from your tiff file and it's a lot better than my first efforts, so well done: M31 quick.jpg but there are some things you can do to improve matters. Take some flats, they will help with the dust bunnies and any vignetting. If you can orient your camer...

I rushed this so didn't do HDR and contrast and probably over cooked the the noise reduction. Also, have a look at Ivo's tutorial on background extraction here: http://forum.startools.org/viewtopic.php?f=7&t=244 I think working separately on the stars could yield dividends. Another thought is that i...