52° 6.5mm Waterproof Eyepiece Diagonal The hand controller can also

The hand controller can also connect to a computer using the supplied RS232 cable (USB adapter available)

or setting it up quickly in your backyard

16 Twilight Factor 32

Although it is not the shortest focal length in the 82° Series

52° 6.5mm Waterproof Eyepiece Diagonal The hand controller can alsoFeatures Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings, Explore Scientific 52 Series Argon Purged Waterproof eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. The 52 Series eyepieces are par focal (meaning they focus at near the same point regardless of the focal length you select) and come