The CEMAX Eyepiece Set from Coronado is comprised of the CEMAX 12, 18, and 25 mm eyepieces, and the CEMAX 2x Barlow lens. These are high-quality oculars for telescopes that accept 1.25" eyepieces. The Plossl-type eyepieces feature sharp optics, a compact form-factor, long eye relief, and a standard apparent field of view. The 2x Barlow lens doubles the power of the CEMAX eyepieces, and it is designed with a minimum of components to eliminate spurious light.
CEMAX is an acronym for 'Contrast Enhanced'. Designed specifically for use with Coronado's H-Alpha solar viewing systems, CEMAX oculars are fully multicoated to ensure maximum contrast enhancement for solar viewers. CEMAX oculars are not filters. When employed as part of a solar viewing system, they must be used in conjunction with a blocking filter and a SolarMax filter.
|Dimensions||12 mm Eyepiece: 1.4 x 2.0" / 3.5 x 5.0 cm 18 mm Eyepiece: 1.4 x 2.5" / 3.6 x 6.4 cm 25 mm Eyepiece: 1.3 x 2.8" / 3.4 x 7.2 cm 2x Barlow: .5 x 3.1" / 3.7 x 7.8 cm|
|Weight||12 mm Eyepiece: 2.8 oz / 80 g 18 mm Eyepiece: 3.5 oz / 100 g 25 mm Eyepiece: 3.7 oz / 105 g 2x Barlow: 3.4 oz / 95 g|