M101 - ED80 (Reworked)

[brendant]

Nice clear night in Glasgow last night, captured a couple of new targets but everything was soaking in the dew.

M101 imaged with unmodded Canon 400D + ED80 on EQ5 unguided. 1Hr-38 mins total comprising :-

1 @ 120 secs @ ISO800 = 2 mins

7 @ 180 secs @ ISO800 = 21 mins

25 @ 180 secs @ ISO1600 = 75 mins

Brendan

[Psychobilly]

Nicee one Brendan...

Nice tight stars for 180s unguided

Billy...

[RobH]

A good tight capture Brendan, good stars and fine focus.

It looks to me like you've pushed the black point up a little high in the processing, I'm sure there's a lot more faint detail in this image.

Cheers

Rob

[jgs001]

Lovely image Brendan

[brendant]

Thanks for the feedback guys.

Don't know if the rework is any better Rob, difficult getting the gradients out but gave it a go, the original was black clipped.

Brendan

[RobH]

Hi Brendan.

Were your subs black clipped?

Although you've brought the blackpoint up in the rework, the original information is isn't there.

What's the software you're using, and in what form are you saving the original data?

Cheers

Rob

[brendant]

Hi Rob,

The subs were stacked in Deep Sky Stacker and the post processing was in Photoshop CS2. I will have another go at processing from the start again and not be as aggressive getting rid of the LP. Have a long way to go in learning my processing skills, very difficult to get rid of the LP and not get left with horrible gradients etc..

Attached is a reduced copy of the output file from DSS, just reduced in size for posting.

Brendan

[RobH]

Wow....I see what you mean about light pollution Brendan....well done for getting it so good considering

Cheers

Rob

[DeanWatson]

Hi Brendan, why not try in curves to leave just a touch more red in the image - there are always ways to remove any heat noise left- I've been having similar problems with my own 101 and its a real pain trying not to over process it yet bring out the detail isn't it.

[brendant]

Had another go at reprocessing, definitely don't think I can get any more out of it with my limited processing skills, image is a crop of the central portion reprocesses.

Brendan

[RobH]

That's a much smoother transition now from the stars and fuzzies to the background, far more natural now.

Well done

Cheers

Rob

[brendant]

Thanks Rob for the feedback, just have to keep trying, its inspirational looking at the images you and the rest of the guys are posting, just gives you someting to aim for some day, (maybe even year ).

Brendan