Comet question

[Rick]

Bookmark the BAA Comet Section Ephemeides that Chris S posted earlier.

C/2004 F4 Bradfield and C/2003 K4 LINEAR are both observable at present, though not necessarily at sociable times, and LINEAR is rather faint. C/2001 Q4 NEAT will become observable second week in May. Theoretically...

[ This Message was edited by: Rick on 2004-04-22 14:00 ]

[malcolm]

Is the 15 - 30 seconds exposure with a 50 mm lens an undriven exposure? I'd have a go, but it seems we'll be shooting below the horizon.

[Whitters]

Yes it is unguided on a tripod and a 50mm lens you could go for between 20 and 40 seconds, best to take several shots giving an extra five seconds each time and you should get an image.

[Rocket Pooch]

Hi,

That orion shot was taken using a 90 second exposure with a 28mm lens, I also took some photo's with 2 minute exposures and they are also fine.  

So I'd think you should be able to get about 1:30 from a 50mm lens.  

I did some reading last week about taking pictures of comets and a lot of people we're using iso400 or 800 film and 45 second exposures.