M51 1st capture - Standard vs 2x Drizzle DSS stack comparision

[M00NMonkey]

Hi Guys,

Here's my attempt at M51. Not amazing, but I am pleased considering how much there is to learn. I feel I am progressing.

200p/eq5 - SW CC/1100D - BYE/Mac

unguided:

13x80s ISO 800

27 darks

21 flats

30 bias

Image 1: standard stack in DSS and basic level stretch in PS

Image 2: 2x Drizzle, kappa sigma dark, flat and bias stack in DSS and basic level stretch in PS

I think Drizzle has definitely improved the image, though it would not work without kappa sigma clipping on the darks flats and bias. I am at a loss as to why this is?? But I really dont know much about any of the software. As i mentioned, much to learn . Are there any detailed books on the software side of things? or is a case of learning off the net, with these things?

Thanks for looking

Clear skies

Jez

[nytecam]

Very nice start - well done - could perhaps do with a contrast boost [its dark on my monitor] and it needs 'flipping' as it's laterally reversed

[Gina]

Yes, nice little image The 2nd looks better but it's lighter which is better the 1st one is dark on my monitor too.

[sologuitarist61]

Looking good!

[andyo]

Good capture the second is a definate improvement

[M00NMonkey]

Thanks for looking and the comments everyone.

Yes agreed the 1st image is darker. In the 2nd image, the data seemed easier to stretch. IDK if I did exactly the same for each image, but I was more impressed with how drizzle handle the data, than using a standard stack.

Like I said, I am fairly new to all the software (and AP for that matter), so I am slowly feeling my way around.

As mentioned in my OP, if there are any software related books worth a read Id appreciate a heads up.

I am also interested in the technique of converting a DSLR image to a (false) LRGB image by using the grayscale option and combining with the RGB. I read about this on here somewhere, but I cant for the life of me find the post with how to go about doing it. (can't afford a CCD atm so it would be nice to play with LRGB, even if not quite the same, until the pennies make the pounds ) (NEQ6 = same problem......come on pennies!!)

Jez