View Full Version : lagoon nebula in H alpha with ED80/Canon 300D

2007-Jul-30, 11:17 AM
imaged over two nights-Saturday 14 July and 28 July..

20 x 10 minutes at ISO 800 and 14 x 3 minutes also at ISO 800

conditions-poorish, first quarter and near full moon, windy

Astronomik 13 nm H Alpha Filter

CG 5 mount autoguided (PHD)
scope-ED 80
camera-Canon 300D
Processed in Deep Sky Stacker/Photoshop

For a larger image -


for a crop from the same image


2007-Jul-30, 11:21 AM
Just for fun I combined this H alpha image with OIII data I acquired last year. Astronomik OIII filter and unmodded canon 300D-same mount and scope

This was only 50 minutes and of poor quality -star trailing and noisy;also I dont have Registar so the alignment was manual, and i dealt with the different star sizes as best I could-but still, here is my first colour mapped image (OIII data contributed to blue and green channels, H alpha data to red and 20 % to blue-synthetic H beta )

comments and suggestions welcome, thanks for looking

2007-Jul-30, 07:54 PM
very cool results Narayan!
i like the colored version.

2007-Jul-30, 08:47 PM
I love the Lagoon Nebula. That's a gorgeous pic.

You made out very well despite the moon and wind. :lol:

2007-Jul-30, 09:55 PM
I like both results. There is a real sense of depth and texture there.

paul f. campbell
2007-Jul-30, 10:17 PM
Hi Seeker.

Both are exquisite, the detail in both the black/white and color photo is crystal clear infact flawless. If your attempt at capturing this nebula is poor quality as you say, please show me one better, because I think they are pretty Dam#, well pretty Darn great. Your work Rules
Clerar skies Paul

2007-Jul-30, 10:25 PM
The recent Ha image went together very well with your older OIII, looks good.


2007-Jul-30, 10:30 PM
I also love seeing M8 in H-alpha. I think that it is one of those DSO that looks better in H-alpha than in color. Well done.


2007-Jul-31, 09:00 AM
thanks folks for your interest and nice comments


2007-Aug-01, 04:20 PM
Narayan you did great! both shots are beautiful and Keepers. Well done and Clear Skies

2007-Aug-03, 04:59 PM
I just got a Canon 350D modified. I think I need an Ha filter next, that should help with my light pollution troubles. Nice shot!