Can I use my 40 mm Plossl eyepiece for a low magnification eyepiece on my 6″ Newtonian?
It is not recommended to use any eyepiece lower than 32mm on telescopes with aperture of smaller than 8″. If 40mm is used as a low magnification eyepiece for a 6″ telescope, you are risking seeing the secondary mirror. So for a good low magnification view on a 6″ Newtonian you should use a 32mm eyepiece. • I do not have much time to spend viewing. Should I buy a computerized telescope? Computerized telescopes make it much easier to find objects with the telescope. However, you still need a certain knowledge of the sky in order to orient yourself between the guide stars (required input for operation of the computer). We feel that learning the sky to a point is the first step towards appreciation of astronomy. • What role does focal ratio play in observing at different magnifications? Telescopes with high focal ratios produce great planetary images as they “maximize” magnification of even the most powerful eyepieces. However, you need to be careful not to magnify the object beyond the re
