First ever guided widefield

leon · #1 02-09-2007, 10:12 AM

Hi Guys, as you may have read in the threads last night, i actually learnt to auto guide

last night for the first time.

And this image although a little overexposed because of a to high ISO setting was my first effort.

The image consists of only 4 Exp @ 3Min's each, through a Canon 300mm F/2.8Lens with 1.4x extender, making it 430mm focal length, this was attached to a Canon 5D and guided with a Philips Toucam on G11 mount, no flats, ans in camera darks.

Boy that is a mouth full, think i said it all.

Anyway have a look and see what you think, and please feel free to comment, good or otherwise.

Leon

mill (Martin) · #2 02-09-2007, 10:36 AM

Looking good Leon, the autoguiding works very well.

Garyh · #3 02-09-2007, 11:33 AM

Looks good Leon..nice to see you being able to do some guided shots!!
Thats next on my list!

The only thing I can pickup is that there seems some vignetting? maybe thats the x1.4 converter ?
You will have to stop down the lense a little or do a flat field image to fix that..
but well done

Ingo · #4 02-09-2007, 11:46 AM

Looks beautiful, especially with that 300 F2.8 of yours. That's some top glass.

Maybe you can upload the high quality somewhere & link us to it so we can drool?

Dr Nick (Nick) · #5 02-09-2007, 12:45 PM

Great detail!

leon · #6 02-09-2007, 01:59 PM

Thanks Guys, yes Gary i do think the 1.4x extender dose give a little vignetting, Im going to give it a try through the Tak 106 tonight if the weather stays clear.

Thanks for all your comments.

leon

Tamtarn · #7 02-09-2007, 02:42 PM

Looking forward to your Tak shots with your auto guiding Leon.

David

Ric · #8 02-09-2007, 03:04 PM

Very nice Leon. For you first attempt I think it's a beauty.

Top job.

ballaratdragons (Ken) · #9 02-09-2007, 04:41 PM

Leon, that is a beautiful image.
The colours are very very nice, and I like the scale. Shows off the area nicely.

Don't forget to put that one up on your wall

Good to see the guiding is working for you.

leon · #10 02-09-2007, 04:53 PM

Thanks Ken, Yep it turned out fairly good and i have to admit i'm happy with that one for a first try.

I didn't realise what auto guiding was all about until last night, and it certainly works magic.

It is quite funny really to see it all happening on the screen, and to see that star trying to sneak out past the cross hairs and then be pulled back in.

I am hooked.

Leon

ballaratdragons (Ken) · #11 02-09-2007, 05:24 PM

Quote:

Originally Posted by leon

It is quite funny really to see it all happening on the screen, and to see that star trying to sneak out past the cross hairs and then be pulled back in.

I am hooked.

Leon

Yep, fun watching it get dragged back. Makes a world of difference on looooooong exposures

dugnsuz (Doug) · #12 02-09-2007, 07:03 PM

Very nice leon - love it!!!
Doug

radu5er · #13 02-09-2007, 08:36 PM

Impressive...

Most impressive...

Looking forward to more beautiful pics.

avandonk · #14 02-09-2007, 09:49 PM

Forget the 1.4 extender Leon. Just use the native lens in all its optical near perfection. Flat field correction is a must with such fast optics. It is not often you hear 'sorry I over exposed the nebula'. You have the half tank of fuel and the packet of smokes......just go for it and keep going!

Bert

leon · #15 02-09-2007, 09:56 PM

Thanks Bert, advice taken.

Leon

tornado33 · #16 02-09-2007, 10:12 PM

Nice colourbalance there too, natural looking colour
Scott

Rob_K · #17 02-09-2007, 10:17 PM

Very nice Leon!

Really like the scale...

Cheers -