a lot to learn - The lagoon version 1

[h0ughy]

stacked in dss processed in PixInsight......i have a lot to learn - i dont like the result.

taken canon cooled 350D iso 800 127ed triplet @ astrofest 2009

[toryglen-boy]

nothing wrong with that mate, nothing at all ... sharp focus, good guiding, strong vibrant colours, i have seen alot worse!!

i take it your not much of an imager, until of late?

am more interested to see what you got with the QHY8


;)

[DavidU]

It's a good shot Dave, It seems to lack blue.

[h0ughy]

no the blue is there - just there is so much red with Ha - very hard to process

[h0ughy]

i have been trying to image - just get beaten by clouds, rain and full moon, then there is the family stuff.........

didnt have time to use the qhy8 this time;)

[DavidU]

I see what you mean.
Waiting for the experts to chime in.

[AlexN]

Data definitely seems good.. Do you have an unprocessed stacked TIFF image that you could upload or email? I've got plenty of spare time to have a play with it if you'd like...

Looks nice enough... black point seems perhaps a little clipped, and yes, the red seems to have dominated the image (as is usually the case with modded DSLRs...)

Good effort nonetheless..

[gregbradley]

Its got everything going for it but colour balance and perhaps your Ha blending technique.

Firstly with modded DSLRs you need a custom white balance. Get an 18% photographic grey card and take a photo of it at midday on a sunny day and set the image as the default custom white balance. Do it once and you are set from thereon out.

Now your images will come out of the camera without the infrared red biased images and will look more like normal RGB.

Now you can do that after the fact if you shot using RAW mode files.

Play with your custom white balance to get rid of the excessive red bias.

Or you can do it with Photoshop and curves hitting the red curves hard probably with an S shaped curve. Straighten the last 1/4 of the curve so you don't blow out the highlights.

ha blending is another subject and various ways to do it. As a layer, delete green and blue channel so its only showing in red then set it to lighten mode is one "simple" way. Control the amount using the opacity slider. Screen mode also works but will be more savage and needs to be toned down more with the opacity slider.

Greg.

[AlexN]

I've had some success adding Ha data as a layer using the luminosity mode and adjusting the opacity slider to anywhere between 50% and 75%.. although this requires more tweaking of the colour layer, generally a boost in saturation and sometimes a few tweaks to colour balance to remove the overly red bias..

Keep at it David.. You'll eventually come up with something you're happy with.

[multiweb]

Nice and crisp David. :thumbsup: If you have one RGB layer and one Ha, try this in PS. Lay the Ha as Lum on top of the RGB then duplicate the RGB on top of the Ha Lum as soft light and tweak the two layers opacity until you like it. That'll give you a point to start from. :)

[h0ughy]

the tiff is 92meg not emailable LOL

[h0ughy]

thanks for that information Greg, i will see what i can do about it in the next week or so?:thumbsup:

[[1ponders]]

Come on up Dave and I'll show you how to do it. You can pick up your scope while your at it.

Nice shot btw. ;)

[Hagar]

Not a bad image David but I think a little less red with the colour balance will allow the blue to come through and remove the apparent red wash over the entire image.

[dpastern]

Well, it's far better than my, admittedly, half attempt from Saturday :-) I like it. David, how much data (time wise)?

I'll also PM you about the 92mb tiff.

Dave

[tornado33]

Howdy, next time I see you Dave bring over the data and I will have a play and seer what I can coax out of it. Ive not had the opportunity to process DSLR images taken under very dark skies yet.
Scott

[Alchemy]

color balance is probably the main culprit.
i presume you have photoshop

use IMAGE....ADJUSTMENTS....LEVELS....t hen the centre eyedropper and click it around the image (usually in a peice of dark sky) and see the changes.

or you can duplicate the layer, select IMAGES..... ADJUSTMENTS.... AUTO COLOR and the blend as color. worth a try.

i havent had a tinker with your image, often by the time it gets here its beyond real repair and needs attention earlier to really reap the benefits.

look forward to seeing QHY8 shots.

cheers clive

[RB]

Dave how much exposure time was this one?
Seems like there's a lot of good data in there, the histogram is quite full.

:thumbsup:

[atalas]

Great effort Houghy!

[h0ughy]

only 2h15min:shrug:

[h0ughy]

thanks Louie

[h0ughy]

i do but have not processed in photoshop yet.:whistle: as for the qhy shots - october IISAC

[h0ughy]

interestingly I have processed Alan Meehan's Data just to see what the difference is, same camera type, different scopes - his is a meade Sn10".

Stacked in DeepSky Stacker, then saved into photoshop and saved as a 32 bit Tiff, then processed with PixInsight 1.56 - then resized for here in photoshop. i will note that i have calibrated my laptop monitor with Spider3Elite. So is there a difference....:rofl:

[Octane]

Dave,

You've set the Hourglass on fire, lol!

I'm not sure what's happened but to me it looks like you've process something between an 8-bit and 16-bit image!

Regards,
Humayun

[strongmanmike]

Nice going Dave, many have already given you what sounds like sound ideas so have another go at it, try Scotty too.

I like the framing

Mike

[tornado33]

Hi all
Heres my processing effort on Alan's data
Calibrated in Deep Sky Stacker with the flats darks and bias frames, finished off in Photoshop
I note the skies were very dark as the subs show so much detail. Thats why Ive pushed it so hard getting all the faint detail :)
Scott

[h0ughy]

well i put a short burn candle in there so i could see:P will have another go:whistle:

[h0ughy]

as usual scott you waste nothing:rofl: nice work. try my images again - maybe blend alans as well:whistle:

[strongmanmike]

Great Scott! you deffinitely used the Flux Capacitor here mate :eyepop:

You have revealed that faint dusty overlay around the Lagoon that Tom Davis was revealing in his image recently, way to go :thumbsup:

Mike

[jjjnettie]

Silky smooth work Scott.

[alan meehan]

One might ask whats AL doing ,thanks scott well done i think i,ll line up for some proccessing lessons LOL,or just shoot images and send them up to you.

[strongmanmike]

No harm in that Al, many a fine partnership like this have been formed before eg: Misty and Mazlin, Carbone and Parker even Pugh and Gendler did a few...so why not Meehan and Alder? Go for it :thumbsup:

Mike