Masuyama Eyepiece 45mm 2"

Masuyama eyepieces are renowned for their exceptional clarity, high contrast imaging, and deep, velvety black backgrounds. Achieving superior contrast, these premium eyepieces boast meticulous grinding, internal baffles, and optimal internal blackening. Despite their sophistication, they feature a streamlined design with only 5 elements, ensuring excellent correction.

Ideal for deep-sky observation, these eyepieces offer impressive overviews, particularly with their long focal lengths, making them well-suited for locating and observing expansive celestial objects.

Developed by esteemed optician Dr. Masuyama, these eyepieces inherit a legacy of excellence. Dr. Masuyama's contributions include designing a 100 mm focal length eyepiece utilized on the historic 60-inch telescope at Mount Wilson Observatory in California. Now, these legendary eyepieces are available with state-of-the-art glass and coating technology.

SPECIFICATIONS

Focal length (mm): 45

Connection (to the telescope): 2"

Apparent field of view (°): 53

Eye relief (mm): 32

Coating of optical system: Multiple

Number of lenses: 5

Number of groups: 3

Field stop (mm): 40

Special features: Adjustable eyepiece cup (folding), Filter thread

General

Type: Eyepiece

Build: Plössl

Length (mm): 128

Diameter (mm): 71

Weight (g): 508