Marvellous images GWARmachine and Dr_who; almost too good because it is more or less impossible to follow suit with one's more humble achievments. Well, anyway, I haven't had a decent sky since early October 2012 but last Saturday nigth skies cleared intermittently and enough to get a few shots from my balcony in the city.
K-5 image with Tamron SP 350mm f/5.6 (Model 06B) and Pentax GPS Unit O-GPS1:
Orion Nebula: Stack of 12 exposures; 15 seconds at ISO 1250. Click on image to see an approximately 50% crop.
Considering the strong light pollution, I am actually quite happy with the results. More so, as the Astrotracer worked very well with this long focal length and produced nearly no trailing:
100% non-resized crop from the above.
But, as said, skies have been depressingly overcast for months by now. So in desperation, I did an expedition back in my arhives to find some unprocessed images to play with. Amongst others a series of Lyra taken in July 2011 with my K200D, a Tamron SP 300mm f/5.6 lens (Model 54B - not the mirror lens used above) and a 2X SP F Series TC on a Meade LXD75 mount:
The Ring Nebula, M57 in Lyra: Stack of 9 images of 30s and 10 images of 15s exposure time at ISO 1600. Click to see a larger version.
This was also shot under my bright city sky, and it is quite fun to try to squeeze out the last excess photons shining just a bit more than the sky glow:
100% non-resized crop of the above.
And the weatherforecast for the next weeks? Well, fortunately I found out that I actually have many more unprocessed images from 2011 that would deserve a closer look.........
Last edited by Stone G.; 02-07-2013 at 03:54 AM.