82° 8.5mm LER Waterproof Eyepiece Moon All mounts have some amount

All mounts have some amount of “periodic tracking error” inherent in them caused by tiny gear imperfections

located on the top of the tripod as well as on the side of the pan head

Tackling close astrophotography targets like the sun and moon

16mm Eye Relief

82° 8.5mm LER Waterproof Eyepiece Moon All mounts have some amountFeatures With its long eye relief of 15mm, the 8. 5mm LER ocular from Explore Scientifics 82 Series of Argon Purged Waterproof Eyepieces puts the focus on a comfortable viewing experience for all observers. For eyeglass wearers, a long relief is a must because it allows them to enjoy the full field of view. This eyepieces 8. 5mm focal length can produce high magnifications that are great for observing objects like the Moon, the planets and binary