Chris, >>> but the azimunthal would use a plumb line set its line up.<<< Never heard of a plumb line being used. Typically we use small line levels and compasses. Positioning the camera/scope on either an alt-az or eq mount is pretty straight forward as long as your declination circles are accurate. That's typically the first step, ensuring there accuracy on the mount. Take care, Gregory david Stempel FIREFRAMEi m a g i n g www.americanphotojournalist.com "The brave ones were shooting the enemy, the crazy ones got it on digital"
