[jase (Jason)]

Originally Posted by Octane

Jase,

As always, <insert superlative here>.

I really, really adore the mottled look to the top half of the frame.

Nothing to dislike, everything to like, and, those diffraction spikes are way cool!

H

Thanks Humayun. The image continues to grow on me. I suspect I've spent too much time looking and processing, so its good to get a fresh eyes perspective here on IIS. Thanks for your feedback.

Originally Posted by Peter Ward

Isn't that the truth.

I think it was Fred V who made the observation, stars are in focus or "eggy" or they are not, the image is noisy or not.

I'd go further to say: there is shadow detail or not, structure within the highlights or not, accurate (or at least pleasing) colour or not

These are the technical "givens", when nailed, that make a great image.

Framing the subject is the artistic bit, but teeny Galaxies at 600mm you'd have to question....

In this case, all good.http://www.iceinspace.com.au/forum/....s/thumbsup.gif

Fully agree Peter. We all look for difference aspects (or should I say defects) mostly due to our experiences. The "anything goes" approach to narrowband imaging is perhaps a not my usual style. RGB is rigid and defined. Variety is the spice of life! Thanks again.

Originally Posted by Bassnut

Sublime image Jase, teeny stars, expert NB processing without the crayon effect, extreme detail, no noise. Looks like you spent time getting it right and it shows. The U16 is a sweet cam, to die for, but ABG. What was the band width of the filters and the sub exposure times?.

Cheers Fred. Thought this may bring you out for critique. Probably spent too much time but it was warranted. The Ha data set was awesome to work with. Indeed, the Apogee U16M is a solid performer (no complaints with mine). This set up has the Astrodon Series II 5nm Ha, SII and OIII filters installed. All subs were 600s in duration...as you'd expect operating at F/3.6! Plenty of signal to deal with even with the notoriously dim SII emission line. Of course 16" of aperture helps! Thanks for your comments.

Originally Posted by marc4darkskies

I may not know much about NB but I can spot an image that's had a lot of effort put into it!! A very beautiful image Jase! http://www.iceinspace.com.au/forum/....s/thumbsup.gifhttp://www.iceinspace.com.au/forum/....s/thumbsup.gif

Cheers, Marcus

Thanks for your feedback Marcus. Hey, that makes both of us! If you've ever played around with clipping masks in photoshop, producing narrowband images is simplified. Even more so with adjustment layers. Tweak to your heart's content, just watch your histogram for clipping. Thanks for checking it out and making comment.

Originally Posted by strongmanmike

Processed very nicely with pleasing colours. Not the most spectacular subject as far as nebs go really but the subtle features here and there make for an interesting view none the less, very nice.

Don't worry about the diffraction spikes and the shape of the bright stars either, some optical effects inherent in the system are ok in images as far as I am concerned and considering their removal is probably being juuuust a little paranoid http://www.iceinspace.com.au/forum/..../rolleye09.gif http://www.iceinspace.com.au/forum/..../winking70.gif

That ASA looks to be the goods, is this the one that was for sale recently?

Top job http://www.iceinspace.com.au/forum/....s/thumbsup.gif

Cheers Mike. Interesting you say that its not the most spectacular nebula. The lack of overall features draw the viewer into the selected few details. The is not overly busy and is different none the less. The diffraction spikes have grown on me, but they're not your usual RCOS variety. On the 1:1 image the diffraction spikes look dis-contiguous i.e. not connected - undoubtedly as you suggest, due to optical design.

No the ASA was not the one up for sale based out at RDO. This instrument is located in Texas, US. Thanks for the feedback - appreciated.

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Thanks all.