Lagoon Trifid Quick Widefield

[avandonk]

Last night was quite clear but had intermittant cloud patches. So I set the system to collect thirty images at 400ISO at 4 min and f/5. This was all done unguided so when cloud interfered the autoguiding would not run away chasing a star that was just noise. I managed to get 11 usable out of these images before the cloud really came in.

Details
Canon 5DH, Canon 300mm F2.8L at f/5. Hutech LPR filter.
11X4min at 400 ISO unguided.

full res image 6MB
http://d1355990.i49.quadrahosting.com.au/2009_03/lagtrif.jpg

As you can see f/5 using the aperture in front of the lens is the way to go to get perfect stars from corner to corner.

Bert

[mexhunter]

Hello Bert:
Very nice field for this M8 and M20.
Many greetings
Cesar

[gregbradley]

Nice image Bert. So many stars, like sand.

Greg.

[multiweb]

So Cool! :thumbsup: Love to browse your widefield shots to look for other potential targets. Better than a star chart :lol: There's an interesting little globular custer on the right next to a dark nebulosity.

[avandonk]

There is a planetary nebula in this field centered on this image. Should be an interesting target for a longer focal length.

Bert

[atalas]

Beautiful Field Bert....surfing It is a real treat!