M42 @ 400mm f5.6 REPRO

dugnsuz (Doug) · #1 05-02-2011, 01:12 PM

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

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/k...urrent=11h.jpg

Cheers for looking
Doug

leon · #2 05-02-2011, 02:12 PM

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

Leon

dugnsuz (Doug) · #3 05-02-2011, 08:10 PM

Quote:

Originally Posted by leon

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

Leon

Cheers Mate
Doug

dugnsuz (Doug) · #4 05-02-2011, 08:10 PM

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

Cheers
Doug

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

Lester · #5 05-02-2011, 09:09 PM

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

CoolhandJo (Paul) · #6 05-02-2011, 09:43 PM

Love the dust. Great balance across the image!

leon · #7 05-02-2011, 11:14 PM

Nice tracking Doug, looks spot on mate.

Leon

dugnsuz (Doug) · #8 06-02-2011, 12:20 AM

Quote:

Originally Posted by Lester

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

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!

Quote:

Originally Posted by CoolhandJo

Love the dust. Great balance across the image!

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

Quote:

Originally Posted by leon

Nice tracking Doug, looks spot on mate

Leon

You again!!!

Thanks leon

Doug

Paul Haese · #9 06-02-2011, 11:33 AM

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 (Doug) · #10 09-02-2011, 01:34 AM

Quote:

Originally Posted by 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.

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/k...urrent=11i.jpg

cheers
Doug

Hagar (Doug) · #11 11-02-2011, 08:52 AM

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

iceman (Mike) · #12 14-02-2011, 06:01 AM

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

dugnsuz (Doug) · #13 14-02-2011, 11:07 AM

Quote:

Originally Posted by Hagar

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

Cheers Doug

Quote:

Originally Posted by iceman

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

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/k...t=M42Final.jpg

Cheers
Doug

Craig_L · #14 14-02-2011, 12:24 PM

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

strongmanmike (Michael) · #15 14-02-2011, 12:28 PM

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

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

wysiwyg (Mark) · #16 14-02-2011, 02:58 PM

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

Exfso (Peter) · #17 14-02-2011, 04:35 PM

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

dugnsuz (Doug) · #18 14-02-2011, 08:24 PM

Quote:

Originally Posted by strongmanmike

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

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

Aye fair Sidonio, there's the rub!

Quote:

Originally Posted by wysiwyg

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

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

Quote:

Originally Posted by Exfso

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

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

Quote:

Originally Posted by Craig_L

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

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

Doug

jjjnettie (Jeanette) · #19 14-02-2011, 10:07 PM

Stupendous work!