With this eyepiece I've noticed a very light bluish tone in M42, the great Orion Nebula. The following tables show eyepieces data made by several makes. Expressed inside parenthesis are the figures for the Ranger. Inside brackets are the figures for the Vixen. When choosing eyepieces you must keep in mind that you must always be under 50 magnifications per inch of aperture.
Some manufacturers have different series ranging from economy eyepieces to first-class ones.
Expressed inside parenthesis are the figures for the Ranger. Inside brackets are the figures for the Vixen. Short relief eyepieces are difficult to use to glass wearers. The word says it all. This is not a very important issue in astronomy.