Everybody is posting their moon shots, so here is mine It's just one picture with a bit of contrast, saturation and sharpening in DPP. This was taken with the 1000D through the Megrez 72 telescope with a 2" 2x barlow, mounted on an astrotrac set for lunar tracking. ISO400, 1/250th second.
I've read that the magnification you get from a barlow depends on the distance between the barlow lens and, in this case, the camera sensor. It's a 2x barlow, but that's if you stick an eyepiece in it.
My moon is 1910 pixels high and 0.5 degrees apparent size. The original image is 2592 pixels high, so roughly 0.68 degrees angle of view. The sensor is 14.8mm high (Canon APS-C), so I can calculate the effective focal length
f = 14.8 / (2*tan(0.68/2))
giving a focal length of 1247mm. The Megrez 72 has focal length 430mm, so the barlow must be providing 2.9x magnification.
Is that right? A 2x barlow in front of a camera gives almost 3x magnification? That means the system was operating at f17... which is why I needed ISO400 I guess.
Anyway, I'm really pleased with my moon picture