Denkmeier D21 Eyepiece set (71913)

The highly rated Denkmeier D21 eyepieces are precision-matched to within 1/100th of their focal length, typically measuring 21.6mm. Featuring a 65-degree apparent field of view (AFOV) and fully multi-coated optics, these eyepieces deliver outstanding performance for a wide range of observations.

Performance and Features:

• Distortion-Free Viewing: The D21 eyepieces exhibit no pincushion distortion, ensuring sharp and accurate views.

• Versatile Use: Ideal for nighttime observations of planets, the Moon, and deep-sky objects, as well as daytime solar viewing in white light or H-Alpha. Always use an appropriate solar protection filter when observing the Sun.

• Exceptional Contrast: Fully multi-coated optics and high-index Japanese glass provide ultra-high efficiency transmission and excellent contrast for detailed views.

The D21 eyepieces combine precision engineering with premium materials, including high-index Japanese glass, to deliver exceptional optical performance. Whether used for planetary, lunar, deep-sky, or solar observations (with proper filtration), these eyepieces are an excellent choice for serious astronomers.

Specifications:

• Focal length: 21mm

• Eyepiece barrel format: 1.25"

• Apparent field of view (AFOV): 65 degrees

• Coating: Fully multi-coated on all air-to-glass surfaces

• Eye relief: 20mm

• Materials: Black anodized aluminum housings and barrels with rubber knurled grip

• Features: Rotating batwing eye guards for comfort

• Weight: 8 oz. each