I'm trying to take a picture of the moon, I'm using a 500mm fixed F8 lens with a 1.6x tele-converter on a D100 which has a lens factor of 1.5. So I think the focal length becomes: 1.5 * 500 * 1.5 = 1200mm (i hope this is the right way to calculate!). Anyhow, as you can imagine its very hard to keep the camera steady on a tripod with such a long lens, I've tried using a timer with no luck. There are still slight vibrations. The lens is "Non-CPU" so I have to expose and focus manually. The focusing is easy, I just set the lens to "Infinity". As for exposure, I've found that I get the best results with a shutter speed of 1/30 with a fixed F8 aperture. But this is resulting in a slight blur of the image. I don't think that the image is out of focus because I shot one at 1/125 and that was quite sharp but yes, underexposed. So I'm confused here... should I increase the ISO? But I'm afraid that will add digital grain. I don't have a remote or cable release for the camera either. What do you guys suggest?