M42 @ 400mm f5.6 REPRO

[dugnsuz]

Hi all,
Had hoped to add more subs and perhaps some Ha too, but a look at the weather forecast suggests that I won't be imaging for the week:mad2:

Decided to repro my previous M42 taken with the new 400mm f5.6L lens.
That image was rife with satellite trails which I thought could not be removed.
H pointed me towards Sigma stacking which worked well in removing them.

So, here's a repro - pulled back on the gaudy colour scheme and tried to deal with the noise in the outer parts of the gas/dust too!

High res...
http://s327.photobucket.com/albums/k461/doug-robertson/?action=view&current=11h.jpg

Cheers for looking
Doug:thumbsup:

[leon]

Wow Doug that is awesome mate, a beautiful field of view, colour looks pretty spot on to me, IMHO.

Leon

[dugnsuz]

Cheers Mate
Doug:thumbsup:

[dugnsuz]

Re your PM about the stars in the image, here's 100% crops of middle and edges of a randomly selected sub.

Cheers
Doug:thumbsup:

Top Left...Centre...Bottom right...Left Middle

[Lester]

Those cropped images would take some beating from any lens. Thanks for the views Doug.

[CoolhandJo]

Love the dust. Great balance across the image!

[leon]

Nice tracking Doug, looks spot on mate.

Leon

[dugnsuz]

Not too bad Lester - Craig_L and I were worried about some astigmatism in the stars, posted the crops to try and work it out. Perhaps a slight 'bulge' to the top right of the brighter stars - ?focus, ?tracking, ?lens mis- aligned with focal plane...who knows? Not too bad though!


Thankyou sir - that shadows/highlights function in PS has a lot to answer for in this image!


You again!!!:lol: Thanks leon

Doug

[Paul Haese]

Looks pretty good Doug, although I reckon the dust should be that browny colour. Dropping back the red in curves with give that more balanced look.

I really like the field of view though.

[dugnsuz]

Cheers Paul - added a bit more data: grand total of 200mins worth

Smoothed things out considerably and allowed me to push the data a bit more.

Hi Res...
http://s327.photobucket.com/albums/k461/doug-robertson/?action=view&current=11i.jpg

cheers
Doug:thumbsup:

[Hagar]

Lovely image Doug, Great field of view and the colours look very good.

[iceman]

Lovely image Doug, nice work! The second repro is the goods!

[dugnsuz]

Cheers Doug



Thanks Mike - link to the "final" repro is below. Darks calibration removed some of the pesky hot pixel trails seen in the other images.

http://s327.photobucket.com/albums/k461/doug-robertson/?action=view&current=M42Final.jpg

Cheers
Doug:thumbsup:

[Craig_L]

That's a ripper Doug. Love all that dust swirling about. very 3D'ish.

[strongmanmike]

Yes I agree, the last repro is great Doug, the trap looks better too, very nice work :thumbsup:

"To repro or not to repro, that is the question...." William Reprocessor :P

[wysiwyg]

Nice image Doug, and the fact that you got it using a DSLR lens, that is amazing in itself!

[Exfso]

Doug, that repro is absolutely beautiful mate, top shot I reckon. The old 40D doesn't do a bad job hey:thumbsup:

[dugnsuz]

Aye fair Sidonio, there's the rub!:P


They ain't Taks, but the performance of some of the L series Canon lenses can be pretty nice.


Cheers Pete - it's been souped-up a fair bit though:lol:


Thanks Craig - the gamble over buying the 400mm lens seems to have paid off (so far!)

Doug:thumbsup:

[jjjnettie]

Stupendous work!