Is a 6 inch telescope good?
6-inch Telescopes offer exceptional resolution for their size. They can resolve double stars at . 76 arcseconds and can be magnified up to 304 times the human eye. 6″ Optical tubes also make exceptional light gatherers by allowing an observer to see 14.7 magnitude stars!
What does a coma corrector do?
A coma corrector is a shallow lens used to correct disortions in the optical field caused by the mirrors (or is that the primary only?) Coma usually becomes annoying towards the edge of field, so if you stay well inside it is minimized.
Is a coma corrector necessary?
No one “needs” a telescope, no one “needs” a coma corrector.. Whether or not you could benefit from a coma corrector, whether it would be worth the investment, that’s a complicated question and there are no easy answers.
What is the difference between a field flattener and a coma corrector?
For example: flatteners meant for SCTs (desired by photographers) are most often combined with a focal reducer (also desired by photographers). A coma corrector meant for a newtonian would bring the focal plane inside the focuser, making eyepieces unuseable.
Why do I need a field flattener?
To use a telescope for photography an optical device is needed to convert your telescope from a visual instrument to a photographic camera lens. This optical device is a field flattener (or reducer/flattener). Without a field flattener stars that are not in the center will appear distorted.
What does a reducer flattener do?
Field Flatteners And Reducers Some flatteners do just that: they flatten the field removing the field curvature created by the telescope. Some flatteners are also reducers: this means that while they correct the field curvature, they also reduce the focal length of the telescope.
What can an 8 inch telescope see?
This size scope, however, is a bit small for deep-sky objects such as nebulae, star clusters, and galaxies. An 8-inch telescope (it doesn’t matter what type) will move you into a new dimension of viewing. The objects you see with an 8-inch scope will reveal more detail.