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Striker
30-01-2006, 04:33 PM
Guys...as most of the imaging boys at lostock were aware I was having major problems with noise on this target...I spent 2 nights just imaging this target with the same affect...I was using a UHC-2 filter which looks to have been the cause of my problem...the noise ratio was too high.

I had enough by the second night so I decided on the last night I would take an image without the filter with improved results....and considering I spent a full 2 night on this target I didn't want to waste another so I moved onto Orion.

Very dissapointed in this image but I said I will post it.

15 x 12.5 Minute guided exposure ISO800 on the ED80.

I have lost a lot of detail due to darkening and reducing all the noise and I mean noise heaps of it.....oh well next time I wont use the filter...saying this the UHC-2 filter works exceptionaly well from my light poluted skies in Brisbane...I now know not to use in dark skies...atleast I learnt something.

Robby
30-01-2006, 04:39 PM
Hi Tony, Looks ok to me mate!!!
Shoot me a copy of your stacked, calibrated RAW (before any processing) & I'll see if I can suck anything more out of it... rob(at)star-mate.com
But honestly mate it looks awesome to me! Well done...
Cheers

Striker
30-01-2006, 04:50 PM
Thanks Robby,

Do you really want me to send you a 47MB file.....Because thats the size of stacked set of raws unprocessed......lol

davidpretorius
30-01-2006, 05:02 PM
i'm not sure what to say, i know the feeling, you spent heaps of time and the result doesn's seem to equate???

still, i reckon any horsehead is a great accomplishment!

ving
30-01-2006, 05:06 PM
thats the worst looking image i have ever seen!!!
just kidding :)
aint the flame neb one of the prettiest things ever! :D

RB
30-01-2006, 05:19 PM
Don't be dissapointed Tony, it's a great image. Don't forget too that the camera is not a cooled camera, it's summer so you'd get a bit more noise.
I think it's a very good shot, just learning as we go mate.

h0ughy
30-01-2006, 05:20 PM
are you kidding, I think you swallowed too much river water, looks great to me. I tried for the same object with no real result, thats excellent

Robby
30-01-2006, 07:09 PM
47M is fine Tony. Actually if you can be bothered just upload it directly to my ftp server. I'll PM you a login.
Love to have a play! :)
Cheers

Striker
30-01-2006, 07:14 PM
Ok Robby...pm the details...thanks

acropolite
30-01-2006, 07:29 PM
Yep, Huffy's right you have swallowed too much river water, looks very nice to me. Can you post the full size image somewhere??

Astroman
30-01-2006, 07:32 PM
Very nice tony.

Striker
30-01-2006, 07:51 PM
You guys better get some glasses.

Shamefully I will give you a link to see a larger version that makes it look even worse....but only if you download my latest Orion Runningman image aswell...full jpeg version.....lol

It's 143X better as far I am concerned.

http://www.users.on.net/~striker/Flamehorsefull.jpg
http://www.users.on.net/~striker/Orion_runningmanfull.jpg

Harlequin
30-01-2006, 08:07 PM
Wonderful image of horsehead and Orion runningman. Thanks Tony.


Regards


Daniel

gaa_ian
30-01-2006, 08:09 PM
Tony, you are way to harsh on yourself mate !
What I would like to know is what can be seen visually of these DSO's with the 30" Dob at Lostock ?

Robby
30-01-2006, 08:18 PM
Yep that M42/NGC1977 combo is a stunner... I took a little poetic licence and combined it with a 1min trap shot I took some time back. Took awhile to scale & rotate to fit (and it's still not quite perfect), but maybe you'll like the result? Maybe not!
Cheers

atalas
30-01-2006, 08:34 PM
Very nice Tony ! and It was great catching up with you again . :)

meade expert
30-01-2006, 09:44 PM
Very nice indeed !

danielsun
30-01-2006, 11:05 PM
No need to be disapointed with that Tony!! I think it looks fantastic!!!

And your shot Robby truly is a stunner!!!

seeker372011
31-01-2006, 09:27 PM
nice work Tony..your HH looks fine to me BTW

tornado33
31-01-2006, 10:46 PM
Yes theers plenty of detail there in the nebula. Did you try in camera noise reduction? I wonder how much of a difference it would make, though doubling imaging time.

Robby
01-02-2006, 07:07 AM
In camera NR is just dark fram subtraction, and only a single frame so still suseptible to cosmic ray strikes & other random noise. Always better to do a seperate run of darks then stack and subtract from the lights.. IMHO anyway!
Cheers