elongated stars in the corners...

[Gonzo]

I took this 60 sec exposure picture last night of Canis Minor.

stars in the middle of the picture are nice and round, however in the corners.... oh dear

taken with:

Lumix GF1

Minolta 50 mm F1.7

A mode

60"

Is there anything I can do?

[Demonperformer]

Looks like your tracking is alt-az rather than eq?

The only thing you can do is get a proper EQ mount to eliminate this field rotation.

[rfdesigner]

That's coma

stop the lens down by about 1.5 notches

see: Canon 50 mm review

clear skys!

Derek

[Gonzo]

Looks like your tracking is alt-az rather than eq?

The only thing you can do is get a proper EQ mount to eliminate this field rotation.

LOL, it's on an EQ1 ....

[Demonperformer]

My mistake ... it looks just like the results I get piggybacking on my SE mount.

[Psychobilly]

DP seeing as the gave no info on how the camera was "mounted" when the pic was taken how were you to know...

Most of the Canon 50mm lenses need stopping down to f3.5-f4 to sort out the coma... but that means longer exposures and all the extra effort tthat that entails so its swings and round abouts...

Peter...