LMC what do you think

leon · #1 10-10-2007, 05:06 PM

Hi Guys.

Last night there was much discussion about my image of the Silver Coin Galaxy, and rightfully so if it had problems.

It appears that i was doing something wrong in the processing side of things, and that is quite possible as I'm still a novice at this.

Anyway to cut a long story short, i spent the entire night on the LMC, and found this image to be the best result, after many different ISO's and times.

10 images @ 2 Min's each, at 400 ISO, through Tak 106, and Canon 5D, Guided on G11, with Toucam 840K, Flat Fielded, and ICNR.

So now i would like your opinion, this image is aligned and combined in Image Plus, nothing has been done to it other than a slight brightness and contrast, it is not cropped.

The question is this, although i did it following the advice suggested last night, is it noisy...
Cheers Leon

Geoff45 (Geoff) · #2 10-10-2007, 06:29 PM

Nice one Leon. I think you've brought out all the detail. I had a go in PS and there doesn't seem to be any hidden detail.
Hard to judge noise on a low res pic, but there doessn't seem to be anything worth worrying about.
It may have been better to off-centre the Tarantula, so that more of the cloud was visible.

2020BC (Bill Christie) · #3 10-10-2007, 06:47 PM

I like it. The Tarantula is well centred and the off-centre LMC is contrasted nicely by the sparser areas at left. Nice. Looks sharp and not at all noisey at that size.

I don't think noise would be a problem at 10xISO400 with ICNR if you haven't adjusted the levels much. If you want us to see the noise you'll have to stretch it more and give us a closer look.

I reckon you're ready for a deeper shot with that excellent kit that you've got, say one where you go for 60 mins total exposure, oh, and a closer crop on the nebula.

Maybe frame the next one so that the LMC runs horizontal and you can get more stars in pic.

Just suggestions.

Attached Thumbnails

mill (Martin) · #4 10-10-2007, 07:01 PM

Not noisy at all Leon, looking very good to me.

leon · #5 10-10-2007, 07:31 PM

Bill, sixty minutes

......... OK I will think about it.

Cheers.

Leon

davidpretorius · #6 10-10-2007, 07:34 PM

leon, from my eyes, that looks great.

Ric · #7 10-10-2007, 09:15 PM

Very nice Leon, the Tarantula looks great.

Cheers

jjjnettie (Jeanette) · #8 10-10-2007, 10:38 PM

Originally the Tarantula was called The Looped Nebula. A more appropriate name in my opinion.
I think you've done a great job Leon.

ballaratdragons (Ken) · #9 11-10-2007, 12:49 AM

It looks fine on my monitor, Leon.

That is a nice sharp image. Your guiding is working perfectly too

leon · #10 11-10-2007, 07:35 AM

Well many thanks to you good people, it seems that i need to back off a bit with some of the processing, and leave more original data in the image.

Thanks Again, all your suggestions and comments greatly appreciated.

Leon

tornado33 · #11 11-10-2007, 11:10 PM

I cant fault it, and the sky background looks even, so the flatfielding is correct.