Product Features
【Fully Coated Optical Lens】This 4mm telescope eye piece is made of high quality optical glass lens, perfect for observation of lunar craters details, planetary , and more；
【Fit For 1.25" Telescope Focuser】Standard 1.25inch barrel size, can be used with 1.25inch telescope focuser. Internal threads of the barrel enable eyepiece to be used with astronomy filters；
【Metal Construction】The 1.25inch telescope eyepiece is made of all metal construction for durable usage, also blackened for reducing glare as well as improving light transmission and contrast；
【Foldable Rubber Eye-cup】There're 2 ways to use eye-cup, fold up and fold down for your choice；
【Anti-lost design】Eyepiece interface recess portion can prevent the loss;
【1 Plastic storage box】Our telescope eyepieces are packaged with one Plastic storage box to protect your eyepiece from dust and moisture, which is easy to carry and storage；
Specification
Brand: Datyson
Product No.: 5P9853A
Origin: China
Focal length: 4mm
Lens size: 1.25 inches (31.7 mm)
Lens material: metal aluminum
Optical Lens material: optical glass
Lens coating: Fully Coated Green
Thread specification: M28.6X0.6mm
Eye mask type: flip back type
Product volume: 33.5 * 33.5 * 42mm
Net weight: 35g
Gross weight: 57g