82° Series 24mm Waterproof Eyepiece Optical Design_Newtonian The fast f/4

The fast f/4

Field Stop Diameter 31

this focal extender adds some real versatility to your telescope accessory line-up

A saddle plate is not the most exciting astronomical accessory in the world

Oversized altitude (16

82° Series 24mm Waterproof Eyepiece Optical Design_Newtonian The fast f/4The 24mm 82 Series Waterproof Argon Purged Eyepiece is a popular focal length in the upper medium power magnification class providing both super wide apparent field and generous eye relief. It is perfect for any application where more power is desired including observing globular star clusters, planetary nebulae, the bright cloud structure near the nucleus of comets, initial observations of planets, and (with the proper safe filtration on your