Celestron C6 - C8 Deluxe Flexible Dew Shield - 94018 150 mm Telescopes It also offers negative achromat

It also offers negative achromat compensation

2") Apparent Field of View: 70° Optical Design: Proprietary - Ultima Edge Number of Lens Elements: 9 Number of Lens Groups: 5 Optical Coatings: Fully Multi Coated Eye Relief: 22 mm (0

4" Focuser

Imagine the exhilaration of opening a clam and discovering your first pearl

Celestron C6 - C8 Deluxe Flexible Dew Shield - 94018 150 mm Telescopes It also offers negative achromatCelestron C6 C8 Deluxe Flexible Dew Shield Prevents dew from forming on your Schmidt Cassegrain or EdgeHD corrector lens Fits 6 and 8 optical tubes Cutout accommodates telescope dovetail rails Felt lined interior surface captures moisture and reduces stray light Rolls up for easy transport The Celestron Dew Shield DX is an essential accessory that protects your optical tube in the field. It prevents excess moisture in the air from forming condensation