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Very nice! Good core control.

ChrisH

Many thanks Andy and Ivo, appreciate you comments

ChrisH

The longer you expose then yes, more background noise will accumulate - however, if the target is actually brighter than the background then the signal will always accumulate faster than background noise. You are only interested in signal that is above the background noise level, that is the only da...

Just stunning! :shock: The stuff you're producing is of a very high caliber Chris. :bow-yellow: Please keep it up! I'm happy ST performs to satisfaction - in particular the noise reduction. It's this feature (courtesy of the Tracking paradigm) that really puts ST ahead of the pack, as it should ind...

This is a composite of Ha, OIII and SII data (Astrodon 3nM filters) using 30min subs (total about 10hrs - can't recall for sure without checking!) I was very happy with the way StarTools revealed detail through sharpening, Deconvolution and contrast enhancements. Noise was magically reduced by the d...

Bias and flats you need, but darks are a bit of a waste of time with DSLRs because the camera is not temperature controlled and so it's very difficult to obtain a valid master dark (the camera will heat up significantly during exposures unless you get rid of the battery and use an external power su...

Bias and flats you need, but darks are a bit of a waste of time with DSLRs because the camera is not temperature controlled and so it's very difficult to obtain a valid master dark (the camera will heat up significantly during exposures unless you get rid of the battery and use an external power sup...

I'm afraid it's going to take someone smarter than me to resolve some of the problems in that image - so I'll let Ivo show how it's done :) Meanwhile my pathetic attempt is below... (hey, at least you can see the HorseHead now!) http://i970.photobucket.com/albums/ae183/ChrisLX200/AutosaveST_zps5f25e...

Hi Glenn, in case you missed it there is a PDF StarTools Manual (unofficial but still an excellent resource). Well worth a read
http://www.startools.org/download/StarT ... ficial.pdf

ChrisH

This is an Ha/SII composite of the California neb - or as much of it as I could fit on the Atik490EX's chip at one go using my NP127is+0.8x reducer. SII channel doesn't have enough subs so it's still a bit noisy, total was 14 and 8 x 20mins respectively. The noise reduction tools in StarTools really...