-
Posts
1,288 -
Joined
-
Last visited
Content Type
Profiles
Forums
Gallery
Events
Blogs
Image Comments posted by shaunster
-
-
Looks like your cliiping the black point or very near to it and probably losing some detail because of it. The very dark black backgrounds looks quite unnatural.
Dark halos around stars indicate over sharpening of the image.
-
-
Great shot, sets the scene nicely!
-
Very nice, you captured a lot on 20 mins :)
-
Theres a less contrasty version here http://stargazerslounge.com/imaging-deep-sky/149895-nan-pelican-mosaic.html
Cant decide which I prefer
-
Very kind words david :)
-
Thanks Russ, I love how this came out as well!
For some reason uploading the image to SGL makes its colour change a bit, this looks a little orange. Look here http://stargazerslounge.com/imaging-deep-sky/148572-ngc-7000-ha-oiii.html and its how I meant it :)
-
Now with O3
7x1200s Ha
8x1200s OIII
-
Nice one, guiding sorted then stars look very nice.
-
Thanks all :)
Heres the details since some are interested
Scope = Zenithstar 70 + skywatcher flattener
Camera = Atik 383l+
1.25" baader 7nm Ha filter
Guided with QHY5 + ST80 all on a HEQ5
7x20min subs
-
Looks very noisy yes, but this is why you need loads of subs to overcome this. Also with the DSLR being uncooled and this the middle of summer your images will be additionally noisy
-
Yes guided :) Baader 7nm Ha filter + atik 383l+
-
The nebulosity comes with time, 2 minute exposures on a DSLR and I presume its unmodded wont capture much if any, if you shot at a particulary bright target such as orion M42 then you will see the nebulosity apear, but generally to capture the fainter type backgroun nebulosity ( like that around deneb) then long exposures are needed. If polar allignment is off the image will appear to rotate around its centre, the stars in the centre stay round and the outer ones rotate around it, a bit like star trails
There is a lot of nebulosity around the star Sadr which is near deneb, if you shot for this and took longer and more exposures then you should see something and the more exposures you get will help smooth the image out. Aim for at least 20 subs at the longest exposure you can get without trailing and then stack and process and see what you get. The more subs you get the easier it is to create a better final image.
-
This was 7 x 1200s
-
This is the best one you have posted martyn, clean field with minimal gradients. Looking at this it seems you are suffering from some field rotation of the stars, I presume this was unguided but anyway this points to polar allignment being off
-
This is NGC 6888 also known as the crescent nebula, its an emission nebula in Cygnus
-
Thanks Russ. This was processed in 5 mins just to see what was there as I plan for colour and will process properly once I have all data
-
Mainly due to LP but also I only have a 5 position filter wheel so when I have the narrowband filters in place I cant have all the LRGB in there as well..
-
Just a little ring while I was waiting for other targets to clear the rooftops
-
These are my fav galaxies for visual because you can see real shape and structure to them
-
came out very well mate
Is there 2 other fuzzies in there as well?
-
Looks very clean :)
-
Nice shot, I love butser hill
Another place you could go is the forest of bere nr fareham, nice walks around there
-
Yeh I will keep adding to it, think it needs a bit more blue like you said and will get some more luminence, hopefully with more I can make the background nicer.
To deal with the stars I used the 'reduce blue halos' tool, one of noels actions, it works but the star colour goes all plain
M33 single ISO 800 300 secs
in Member's Album
Posted
Really good for 1 sub, shows real promise. Hardly any background skyglow in that either!