Star Images

[ultramol]

I know there are allways variables to contend with but can anyone tell me what exposure times would I need to take pictures of stars. I have been trying 30 second subs but the stars seem to burn out and loose there colour. Or is it just a case of suck it and see....thanks in advance.....geoff

[Leveye]

At what focal length?

[ultramol]

I have a 200p with a Canon 350d. 1000 mm f5

[jambouk]

What ISO are you using?

How bright is the brightest star in the field of view? Are you using any filters?

Is ot star colour you are interested in? If so take the stars out of focus and the colour becomes more obvious.

Otherwise it is a case of trial and error. Take a 5, 10, 15, 20 second sub and see what works. Best to do the checking on a computer rather than on the screen of the camera.

James

[ultramol]

Thanks for your help

[wxsatuser]

You can shoot as long as you like, within reason, colour is normally teased out in processing.

For correct colour, daylight white balance for unmodded cams.

Although white balance does'nt matter if you shoot RAW.

Star colour

[ultramol]

Thanks for the link. It is just what I needed.....geoff