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PeterSEllis
11-05-2015, 01:21 PM
Hi Guys

I will give you a break after the these four shots.
The quality does suffer a little when you drop them down from 20M TIFs to 200K JPEGS.

Cheers
Peter

BeanerSA
11-05-2015, 01:47 PM
Nice work. Care to share any deets?

raymo
11-05-2015, 02:22 PM
Yes, good beginnings; you can always post the high res versions in Astrobin for us all to enjoy.
raymo

PeterSEllis
11-05-2015, 04:09 PM
Hi Paul,

1. All my shots are through my Celestron C11 with a Focal reducer to reduce it down from F10 to F6.3.
2. All done with a Unmodded Canon 1000D, Moon ISO400 1 sec, the rest is ISO1600 1 minute exposures.
3. Southern Pinwheel 60 x 1 minute then stacked with DSS, Keyhole Nebular 20 x 1 Minute, and Omega Centauri 10 x 1minute.
4. I take 10 Darks , 10 x Flats , 10 x Offsets.
5. One other Comment: I have just started using "dither" to help reduce the noise, and it is well worth it. I use Backyard EOS software with an orion autoquider.

After stacking in DSS, I drag the resulting Picture into Photoshop, then the fun begins:

1. I reduce the result from it to 32 Bit to 16 Bit.
2. Crop the edge to remove DSS stacking artifact:
3. Open Levels and bring the black slider up to the beginning of the histogram.
4. Select all areas other than the main object, then run gradient exterminator.
5. Do about 4 or 5 or "gentle" adjustments in Curves.
6. Then sometimes a final adjustment with levels.

As you can see I'm a beginner, nowhere in the same league as some of the more advanced members in this forum.

Cheers
Peter

PeterSEllis
11-05-2015, 04:12 PM
Hi Raymo,

I have never heard of Astrobin, I will have to investigate this one.

Cheers
Peter

guggle
11-05-2015, 08:05 PM
Lovely photo's, Peter!

raymo
11-05-2015, 08:12 PM
You post your low res version here if you want to , and copy and paste a link to your high res image in Astrobin, or Flickr. Quite a few members
do it.
raymo

Rex
11-05-2015, 09:47 PM
Nice shots Peter. Pretty good detail and great workflow.

PeterSEllis
12-05-2015, 01:00 PM
Thanks Rex, I'm getting better at it.

Cheers
Peter

PeterSEllis
12-05-2015, 01:01 PM
Thanks Michael

PeterSEllis
12-05-2015, 01:03 PM
Hi Raymo,

It's on my Job list to post a few up on Astrobin.

Cheers
Peter