Swim the Lagoon...

[Peter Ward]

Again some old AP155 data salvaged with new software

http://www.atscope.com.au/BRO/gallery23.html

The images are progessive .jpgs, so resolution will increase as the file downloads. Clicking on the image will give a full-res (4meg) download....again not iphone friendly...

[strongmanmike (Michael)]

Hmmm?...that FOV looks very familiar .. oh yes, I have the same scope and chip huh?

Nice job on a perenial favourite...but that noise in the outer regions of the full frame image could be reduced a bit and IIIII know just how to do it!

Big full frame files are the norm now huh? The Sidonio legacy?...that and getting rid of ya noise before posting them too

Mike

[MrB (Simon)]

Nice.
Very Nice.

[Bassnut (Fred)]

Unzoomed, very impressive, but given the gear, and as Mike says, a bit of background colour noise there. Scuse me for asking Peter, do you bother with layer masks to reduce noise in the background/outer regions?.

[Peter Ward]

Originally Posted by strongmanmike

Big full frame files are the norm now huh? The Sidonio legacy?...that and getting rid of ya noise before posting them too

Mike

Answer one: nup
Answer two: nup
Answer three: ....a tricky field to loose noise and not loose signal...but I may tinker with the data some more....

Sadly, the raw data was plagued with pretty ordinary seeing (the star sizes are double that of my earlier Omega post) hence I suspect a re-shoot is in order.

[gregbradley]

Hey what do you mean about the iphone? My iphone would download that easily!

Nice image. Noise fanatics have taken over here, I would hardly describe the background as noisy.

What software did you use?

Greg.





quote=Peter Ward;353838]Again some old AP155 data salvaged with new software

http://www.atscope.com.au/BRO/gallery23.html

The images are progessive .jpgs, so resolution will increase as the file downloads. Clicking on the image will give a full-res (4meg) download....again not iphone friendly...[/quote]

[Peter Ward]

Originally Posted by Bassnut

Unzoomed, very impressive......................... ................ do you bother with layer masks to reduce noise in the background/outer regions?.

Thanks Fred,

Noise removal: let me count the ways, adjustment layer, adjustment layer mask, NR software (I like Noise Ninja) layer, intensity layered gaussian blur, CS3 photoshop filter etc. .....but you can't beat mega data!

[Bassnut (Fred)]

wasnt questioning whether you knew of them Sir, just if you bothered using them on this image.

[Peter Ward]

Originally Posted by gregbradley

Nice image. Noise fanatics have taken over here........

Thanks Greg, You might have a point there

What software did you use?

Almost always use CCDops for data acquisition, MaxIm for calibtation and the grunt work, and CS3 for final touch-ups.

[Peter Ward]

Originally Posted by Bassnut

wasnt questioning whether you knew of them Sir, just if you bothered using them on this image.

Understood Fred.... fact of the matter is I rarely bother. He who gathers the deepest data wins

[gregbradley]

Peter,

Do you find CS3 much of an improvement over CS2?

I was thinking about upgrading but it didn't seem the changes were too relevant for Astro work.

I really like the APO images, they are always nice, sharp, contrasty and great fine detail. The RCOS images are also great of course but much harder work. They can't be beat for galaxies.

Greg.

[strongmanmike (Michael)]

Originally Posted by gregbradley

Noise fanatics have taken over here
...

[/quote]

NOISE!!!!!!!!!! Bring back the NOISE!

Push processed 1600 ASA film ruuuules!



Mike

[Peter Ward]

Originally Posted by gregbradley

Peter,

Do you find CS3 much of an improvement over CS2?

Not really. I use CS3 'cause its there. CS2 also handles 16bit...hence from an astroimaging perspective there are few if any improvements.


And true...can't beat the heavy artillery for galaxies

[avandonk]

All of science is about signal to noise ratio. But one mans noise is another mans signal. This generally if correct leads to paradigm shifts.

As for the image not bad Peter but the blue is a bit pushed. From my suburban site this is the most difficult to get correct due to its extinction and interference from light pollution. Not to mention the gradients.

All the same though a very detailed and informative image that shows the quality and potential of the equipment used to obtain it.

Bert

[Peter Ward]

Originally Posted by avandonk

All of science is about signal to noise ratio. But one mans noise is another mans signal.

Too true!

All the same though a very detailed and informative image that shows the quality and potential of the equipment used to obtain it.
Bert

tip o' the hat noted Bert.

Also buried in the high-res data are the RGB trails of a couple of minor planets.... no doubt eagle eyed observers will find them soon enough

[jase (Jason)]

Thanks for the dip Peter. Two laps and I was exhausted. I prefer this version - http://www.atscope.com.au/BRO/gallery9.html. Get rid of the blue hyperlink border as its distracting the smaller image. Again, another good job on the repro using new tools and knowledge. Well done.

[gregbradley]

Thanks Peter.

Greg.

Originally Posted by Peter Ward

Not really. I use CS3 'cause its there. CS2 also handles 16bit...hence from an astroimaging perspective there are few if any improvements.


And true...can't beat the heavy artillery for galaxies

[Ric]

Lovely image Peter, you can really lose your self in the Hi res full image amongst the nebula itself and the stars look so sharp.

Very nice indeed