The photos in the attached pages were taken with my 8 Dobsonian reflector telescope. Its a short system with a lot of light gathering power, but has lousy optics and modest resolution. Planetary viewing is best with an aperture stop over the objective, stopping down to a 3 diameter.

For photography, the normal alt-azimuth mount has been replaced with an old equtorial mount Ive had around, originally intended for a 4.25 light way telescope. This 8 badly overpowers it. Note the added counterweight, a scrap stator clip from a generator armature stator. The right ascension axis had too much friction for the motor and I had to add a homemade thrust bearing. The tracking isnt great.

Our Olympus C2040 digital camera is simply mounted with a makeshift connection. Photos are taken with a 10 sec exposure timer delay to limit dampening. Not fancy, but seems to work. Dark sky photographs are mostly 16 sec (the camera maximum), though the tracking is only really good enough for 4 sec. Image noise increases greatly with consecutive long images as the CCD chip heats up.

Camera noise is reduced by generally taking 8 to 16 photos and averaging them with the astronomy shareware astrostack. Easy enough to find and use. Since the noise is random and the signal is not, averaging images improves the signal to noise ratio.