Eta Carina

[rumples riot]

Heres the Eta Carina

4 x 3minutes
iso 800
Stacked in registax
processed in photoshop
noiseware Med with sharpening

Comments most welcome

Paul

[iceman]

Good first effort there Paul. Looks like a lot of field rotation and/or star trailing though, but sorry I can't offer any advice on how to correct it :shrug:

The dark lane looks very nice though.. just like your M42 i'm sure you'll improve in no time.

[Saturn%5]

A very good shot Paul, Please keep them coming.

[rumples riot]

The field rotation should not be there, given that I have a field derotator, but if tonight is a good night I will try for Eta Carina again. Trouble is finding a good guide star with the off axis guider. YOu would think that with that amount of stars ther would be one present. Anyway will try again soon.

Paul

[rumples riot]

Did some more playing with this shot, curves colours and cropping. Comments?

[beren]

Great work Paul , i really like the neb structure thats revealed . Have you worked out the focal reducer ?

[rumples riot]

Yes focal reducer is on, and so too is the field rotator. But cannot use the zero focuser. The light train gets too long and cannot focus. So all I do it just manually focus on a nearby star. The focus on this is a bit out and should have refocused after taking the M42 shots. I think that I got a slight amount of mirror flop, just enough to make this image look a little out of focus. And this was unguided also. Could not find a guide star for the off axis guider (can you believe that with this many stars?). So there is some trailing. However, I am reasonalby happy with this first attempt on Eta Carina. Hopefully I will be able to try again tonight.

Paul