They are okay for simple moon shots, but the general answer is no, Dobsonians are not ideal for astrophotography because their alt-azimuth type of mount means you can't track the object you're wishing to shoot as it moves in the sky with the rotation of the Earth. If you are into astrophotography, this is a disadvantage with these types of mounts. They do not follow the celestial object in the sky as the Earth rotates and the alt-azimuth mount requires manual adjustment with the two axes requiring different rates of rotation.