Perseus from Kelling Heath

[omega3]

Hi,

Just got a Canon 1000D with nifty fifty and on a steep learning curve. Single frame taken at f2.8, ISO800, 15 secs on a tripod, without mirror lock-up. Some processing in paint.net. I hope someone can help me with a few questions:

1. are the elongated stars due to mirror vibration or star trailing.

2. DSS would only use one image in stack, whilst over 300 stars are detected and scores for the images are over 1000

Your help would be much appreciated.

Alan

[Doc]

Very nice widefield. You even caught M34 well done.

[SteveL]

The elongation is radial rather than in one direction, so I would hazard a guess that its the lens itself. Stop it down one click and that should help with the slight distortion (it certainly did with my 28mm Nikon images)

[Beyond_Vision]

Very nice for a single frame Alan.

The lens will distort unless stopped down to F3 or 4. not sure why DSS wouldn't stack the images. Did you click on check all to make sure all the images were selected. Also set quality to 100% so all images are used.

Regards

Kevin

[omega3]

Thank you for your comments.

Kevin, setting quality to 100% did the trick. Many thanks.

Alan:hello2:

[Taff]

Hi Alan' thats a very nice capture of the constellation.Mark

[Bambi]

I have found the hardest part of taking shots like this with my 1000d is getting the focus spot on. Everything appears great in the live view, zoomed in to x10 but the actual pics always seem to have blobs for stars rather than nice points. I will have to try stopping the lens down to f5.6 or 6.3. I have always assumed the lowest f stop to get the most light in and gone for f3.5, but obviously not.