RCC - I can't figure out how to progress

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Craig Dixon avatar

Hi All.

I feel like I’m imaging and processing at an intermediate level but I’m always looking to improve and I feel like I’ve hit a bit of a wall. I have two setups:

Skywatcher 190MN with 533MC Pro - I use Ha/Oiii and Oiii/Sii DNB filters here.

ZWO FF65 with 183MM Pro & 7nm SHO + LRGB

(I’m planning on swapping the cameras around when I reach the end of my next projects).

Here’s my profile:

https://app.astrobin.com/u/craigdixon1986

I’m mostly happy with my images but there are two things that I’d like to improve:

1) I feel that my image sometimes look a little forced or “blocky”. I’m looking for a smooth, natural but colourful result. Here’s a great example of what I mean:

https://app.astrobin.com/i/a281jf

2) I often see images on Astrobin of popular targets that seem to have a lot more signal than most. Here’s a good example:

https://app.astrobin.com/i/rjsn2m

The nebulosity around and extending out from the heart is simply brilliant and I’d like to achieve this kind of result. Here’s my image of the Heart but you can see that I haven’t got nearly as much signal in the outer regions:

https://app.astrobin.com/u/craigdixon1986?i=r9f386

If I try and “push” the data a bit more in the stretch I just end up with a result that looks forced and blocky. If anyone can offer any criticism or advice on either of the above points (or anything else for that matter), I’d very much appreciate it.

On a side note, I’m considering having a go with some of Adam Block’s tutorials. I’ve tried a few in the past and didn’t really take to the teaching style but Adam is a world class processor so it stands to reason that’s a good place to look for some advanced instruction. is anyone able to offer advice here?

Thanks for taking time out of your day to read this!

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andrea tasselli avatar
Craig Dixon:
he nebulosity around and extending out from the heart is simply brilliant and I’d like to achieve this kind of result. Here’s my image of the Heart but you can see that I haven’t got nearly as much signal in the outer regions:


You haven't exposed for as long, say by a factor of 10 or thereabout, so little surprise there. Besides, I found the thing rather unimpressive. If you want all your background to look red just raise the red in your background ;)
Drew Hackney avatar

I think you’re selling yourself short by saying you’re processing at an intermediate level.

I think Andrea is right - what you’re missing compared to Jeffrey’s image is time. 128+ hours across two panels in a mosaic is an incredible commitment and I think that shows in your final image. But I’m assuming that time is split more or less 50/50 across the two panels. Jeffrey’s image has almost 4 times that on a single panel with his FMA180. You’ve collected about 1/8th of the signal he did on each pixel in your mosaic. I think your image is fantastic nonetheless.

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wsg avatar

Integration time for sure and having just looked at your gallery you might try NOT processing in the

Hubble Palette, especially if you want deep reds and colors other than green and yellow.

scott