soul in below par conditions

[Daniel-K]

after waitin 5 hours for the sky to clear it did with below par conditions but i still managed 1.1 hrs on the soul. i was surprised how big this really is but thought it would be brighter! maybe now im going have to try a mosaic im hoping it clear up for tonight so i can get right on this nebula and have a good crack at it looks promising from just 1hrs worth of data thanks for looking

scope: ED80

guiding: ST80- MAMMUT GUIDER VIA PHD

camera: MODDED CANON 550D SW LP filter

mount:NEQ6 PRO

250sec subs

all processed in CS6

[Ags]

How long were your subs, and do you use the .8 reducer?

[Daniel-K]

no reducer and the subs were 250 secs

[Ags]

Sorry, it was a dumb question - the answer was in your original post.

I like to convert sub lengths to their equivalent time at F5 to get a meaningful figure for the lights gathered. So that would mean your F7.5 subs were the equivalent of 110 second F5 subs.

I am very much a newbie at imaging, but I have noticed that if i can keep the background flatter (by controlling vignetting or shooting flats), I can stretch the data much more successfully.

[Daniel-K]

so are you saying i should reduce my subs to 110secs and just take more of them? i didnt think vignetting was affect by how long the subs were but by the corners of the sensor getting blocked off by the focus tube?

[Ags]

Sorry two different thoughts there. I was wondering why 250 seconds result in a faint nebula and I could think of two reasons. Firstly, your scope is F7.5 so you need to take longer subs to collect the same amount of signal - the F5 was only mentioned as a comparison. Secondly, I can see you have vignetting, and this must make it more difficult to stretch the data you do have.

[Daniel-K]

no flats were taken and i just have the stock single speed crayford focuser

[Ags]

I struggle with flats too. I have yet to take a successful set.

[Gina]

Nice start Another one for my list Things keep going on the bottom of the list but nothing comes off the top - I'm still waiting for a clear night after weeks of waiting I have the 0.85x FR so this one should fit in nicely

[ultranova]

You have the start of something good Daniel, keep with this one

and you should be rewarded, hope the weather plays ball

Paul

[Austin]

Nice one danny! looking good

[earth titan]

Nice one.

Heres hoping the weather improves for you (and the rest of us), so you can crack on with it.

Typed by me on my fone, using fumms... Excuse eny speling errurs.