how long .....

[hemihaggis]

hi there , just wondering what be the maximum lenght of subs i could get with my setup , im just using the goto on the ldx 75 mount , any thoughts much apprecitated

[Dann]

It really depends on the focal length you are using, are you shooting through your scope or a camera lens? When I imaged unguided I used trial and error increasing until the stars start to become egg shaped and then drop it back down.

If you plan on taking wide field shots of the night sky you will find you can get away with longer subs than with a higher focal length lens or scope without trailing.

[hemihaggis]

i would be using the f4 meade with my nikon

[JohnnyD333]

If your mount is polar aligned as perfect as possible, about a minute or two without startrails. I could never go beyond a minute with just GoTo tracking but with very good polar alignment people have gone beyond that.