SvartSork

6 hours ago, profdann said:

If it wasn't for the fact that DSS takes 12 hours to stack the images, and that I can't use any other method than just the standard average (no Kappa-Sigma satellite trail removal for me!) because it takes too much disk space during the stacking process, 5 second exposures would actually be quite nice!

There is actually a trick to get around this problem.

Love this little scope 

Recently I have been trying out some short exposure imaging with my new ASI290MM camera (uncooled). Love it so far and can't say I miss fiddling with guiding and PHD... The seeing was cooperating for once which was nice so set my eyes/scope on M51, my favourite galaxy.

1117x8s exposures. No bias, darks or flats used in this image and didn't use any coma corrector. Stacked in DSS and processed somewhat in GIMP.

Very nice, but I think there could be a lot more detail in there if you relaxed the black point a little.

Hmm, yes you're right!

Is this one better?

And another closer one: M45

Image stacked in DSS from 33x3 min subs at ISO 1600 with Canon 500D. Post processing in StarTools and GIMP.

Some more DSOs. This time NGC891 and the Abell 347 galaxy cluster.

Image stacked in DSS from 107x3 min subs at ISO 1600 with Canon 500D. Post processing in StarTools and GIMP.

Need to spice up this thread with another galaxy image   NGC 4565

88x60s subs unguided on EQ5 Pro. Image data from two nights in March 2015.

Thats a superb image!

Thanks!

Here is another image of M81 using the same equipment.

Exposure is 202x60s.

This is M51 from Stockholm, Sweden sometimes feb/mar 2015.

183x60s subs using a Canon 500D unguided on EQ5 mount and of course the 130 PDS

Used Drizzle 2x in DSS, then some processing in StarTools and then final adjustments in GIMP.