Took advice from IIS members and redid the NGC4545 image that I had posted and took greater care to preserve star colour etc.
Feel this is a better blend of about 4 Hr of luminance and 3 hr of colour with the QSI 583camera and 10" SCT at fl of 2500mm.
Comments welcomed
Last edited by allan gould; 07-06-2011 at 04:47 PM.
Carl
It has taken a while to get the guiding working so that Im happy with it at that focal length. I have used OAG previously but I find that I can do just as well but easier using a separate guidescope. I know thats against current wisdom but have done 30 and 40 min subs with my setup and no problems except for aircraft which make a bee line for my small spot of sky (see attached image which was the first of a set of subs.)
Fantastic image Allan, but I'm going to fly into the face of condemnation from my peers. It looks a tad too saturated on my monitor. The dust lanes look great in detail, but too orange and there are a couple of blue stars in there that you could get a fortune for if you could get them on a ring. I love the way the dust lanes seem to hang over the body of the galaxy but the colour looks a bit to intense.
Lovely Galaxy Allan. This one has always been a hard target for me but you have managed some really nice detailed data on this.
I hope you don't mind but I am unable to leave it alone. I have just lightened it, sharpened it a little and changed the colour balance a bit towards the blue with a bit of selective saturation of the stars.
Sorry but it's hard to get a nice result with a JPG file.
Carl
It has taken a while to get the guiding working so that Im happy with it at that focal length. I have used OAG previously but I find that I can do just as well but easier using a separate guidescope. I know thats against current wisdom but have done 30 and 40 min subs with my setup and no problems except for aircraft which make a bee line for my small spot of sky (see attached image which was the first of a set of subs.)
That's probably Peter Ward trying to sabotage your shots
He knew you were imaging and took a "detour" just over you at the right time
Now that's more like it Doug! That is a fantastic shot Allan. That's just lifted the dust clear of the glow. Now if you could just lighten the background up a bit
That's a big improvement Allan! Colours in the galaxy are looking much better than previous versions. Overall, a really nice image!
Cheers, Marcus
Thanks Marcus, just trying to get there. Ive gone into co-ownership with Peter_4059 for a Spyder3 to get all monitors correctly colour balanced and I think its helped. Although some may disagree (see later).
Quote:
Originally Posted by peter_4059
Nicely processed Allan. You must be happy with that.
Peter
Thanks Peter, still prefer your processing style.
Quote:
Originally Posted by [1ponders]
Fantastic image Allan, but I'm going to fly into the face of condemnation from my peers. It looks a tad too saturated on my monitor. The dust lanes look great in detail, but too orange and there are a couple of blue stars in there that you could get a fortune for if you could get them on a ring. I love the way the dust lanes seem to hang over the body of the galaxy but the colour looks a bit to intense.
Hmmm. Looks OK on my monitor but you may be right its all personal taste I suppose. Just watch your back at Astrofest - may have to adjust your laptop
Quote:
Originally Posted by Hagar
Lovely Galaxy Allan. This one has always been a hard target for me but you have managed some really nice detailed data on this.
I hope you don't mind but I am unable to leave it alone. I have just lightened it, sharpened it a little and changed the colour balance a bit towards the blue with a bit of selective saturation of the stars.
Sorry but it's hard to get a nice result with a JPG file.
Doug
Go for it. To me it looks a little washed out. I still have a lot to learn especially with processing.
That's probably Peter Ward trying to sabotage your shots
He knew you were imaging and took a "detour" just over you at the right time
Quote:
Originally Posted by [1ponders]
Now that's more like it Doug! That is a fantastic shot Allan. That's just lifted the dust clear of the glow. Now if you could just lighten the background up a bit
This is one of my favourite Galaxies and you have captured it beautifully
Doug, excellent touch up
Thanks Ken for the comments and to be honest, on comparing the two side by side I prefer Dougs rendition to mine. Brings out the dust that little better and tones down the colours a bit.
Thanks Ken for the comments and to be honest, on comparing the two side by side I prefer Dougs rendition to mine. Brings out the dust that little better and tones down the colours a bit.
![[1ponders]'s Avatar](../vbiis/customavatars/avatar45_9.gif){kind=avatar}
It looks a tad too saturated on my monitor. The dust lanes look great in detail, but too orange and there are a couple of blue stars in there that you could get a fortune for if you could get them on a ring. I love the way the dust lanes seem to hang over the body of the galaxy but the colour looks a bit to intense.
