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Title: M13 from Headcorn
Post by: Whitters on Feb 09, 2005, 07:50:00

5 minutes (10 x 30 sec)
800mm f5.6 and MX916 CCD
Astronomik IR Block Filter
Headcorn DSC V (7th Feb 2005)

(http://homepage.ntlworld.com/paul_whitmarsh/Astronomy/Images/MX916/Feb_07_2005/M13.jpg)

Title: M13 from Headcorn
Post by: Ian on Feb 09, 2005, 17:11:00

excellent photo Paul, but...

I notice some odd shaped flaring around the brighter stars and the general shape of the dimmer ones. Have you considered the stopping the lens down on relatively bright targets such as this and expose for longer? Lens performance is rarely best at it's most open.

Title: M13 from Headcorn
Post by: JohnP on Feb 09, 2005, 19:59:00

Hi Paul,

Great image & glad to see that there were some images from the weekend. i didn't realise M13 was still around - must have imaged very early in the morning?

Cheers, John

Title: M13 from Headcorn
Post by: Whitters on Feb 09, 2005, 22:44:00

I agree however stopping down the Canon lens is a bit of a problem, I need to make an insert to press all the required buttons to fool it into behaving like a manual lens. IN fact I need to discover which buttons need pressing.

Title: M13 from Headcorn
Post by: Ian on Feb 09, 2005, 23:48:00

Paul, have re-read my previous comment I think it looks like I'm being over critical.

Trouble is mate, it's entirely your fault the bar is really high :wink:

Title: M13 from Headcorn
Post by: Greg on Feb 11, 2005, 14:59:00

Paul,

Now those star images are definitley much smaller. Fantastic pic!!

Title: M13 from Headcorn
Post by: Rocket Pooch on Feb 12, 2005, 21:03:00

Hi all,

I think this is an excellent picture and definately one to aim for when its in the back garden so to speak. Great picture Paul, get it on the forum.

Orpington Astronomical Society

Astronomy => Astrophotography => Topic started by: Whitters on Feb 09, 2005, 07:50:00