Q about moon shots

I have 20D, Canon 70-200 f2.8 and Sigma 2x.
will i get huge picture of the moon?
I any good tips for shooting the stars ?

i do have the remote (with timer and exposure settings) if that is needed for anything.

i'm not in the middle of no where, i'm just getting on the roof to shoot the clear sky (though the surrounding is bright.)

When I grab a picture I normally use a 400mm and 1.4x tele and it isn't to bad. With a 200 and 2x it won't be to big, but you can crop it. Don't expect to get a lot of detail on a full moon, a 1/2 to 2/3 moon will give better detail. Also, the speed is something that gets most people. I shoot at F8 and about 1/250 and then adjust. If you leave it to the camera you will end up with a white dot. When shooting the moon, or any other night shot use mirror lockup and a tripod.

Now, one last thing... the moon on its own is not that great a thing to shoot. It is a matter of equipment and the better the equipment the better the shot, but in the end it's just the moon. Try and add something into the shot, clouds, tree lines, a lake, structors, mountains... something.

Bear

well, this might sound silly,

but i just tried taking some shots of the moon, the moon looked blurry. so i assumed that the ball head is moving. i had to run and change the head. it took me like 20 seconds to do so. when i came back the moon was gone.

so i'm just looking at the pictures, everything around the moon looks okay. only the moon has motion blur. any explenation? and how can I fix this?
i'm uploading pictures in few seconds.

iso 100
400mm
15 secs
f10



iso 100
400mm
10 secs
f10



iso100
400mm
8 secs
f5.6

You need to keep in mind that the moon is in sunlight so your 15 sec and 8 sec exposures are much too long. If you're shooting iso 100, set the camera in manual mode, lens at manual focus, tripod mount, mirror lockup, and use your remote release. Start at 1/100 or 1/125 sec at f8 and adjust from there.

Here's one I took last night at iso200, f6.3, 1/160 sec



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****
http://www.pbase.com/lowthian

Are you sure about the exposure info? I'd expect the moon to be totally over-exposed at these settings. My own experience is more in line with what the others posted.

For stars, search the forums for a thread titled "Got Milk?" where there are a few spectacular shots of the milky way, and discussions on how to minimize star trails. And if it star trails you're after, take multiple exposures and combine them in Photoshop instead of one long exposure.

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I agree with **** (DLowthian) your exposure settings are not correct to capture the moon as you should. THe camera does not return the correct metering for the moon so the settings are out of wack. you just have to set it manually.

the moon does not move very fast to the un-aided eye, but once you point a telephoto lens at the moon it will move out of view fairly quicky. your field of view is much smaller through the camera with a telephoto so the object moves out of sight quckly.

James