The New Mini Pocket Miniature Telescope 2.5X17.5mm Micro-type Finger Button Telescope black
Product No:Finger button telescope
Material: All-metal mirror body, strong and durable, feel good
Focusing method: rotating focus
Ling mirror information: high quality composite achromatic optical lenses
Eyepiece diameter: about 8mm
Objective lens diameter: about 17.5mm
Field of view distance: 8m / 600m
Field of view angle: 6.5 degrees
Exit pupil diameter: 16mm
Exit pupil distance: 13.5mm
Coating: blue film
Product Size: Only 35X22 mm
Packing size: 6cmX5.2cmX6cm
Product weight: 20g
Product gross weight: 28g
Form: 3 2-group type objective lens
Diameter 22 mm, 35 mm long, net weight 20 grams (not including the protection box), due to the use of 3 2 sets of objective lens, so imaging clear, bright imaging.
Small size, just set the finger on the remote object can be observed! Larger than thumb. Easily smart anywhere, anytime! May be the world's small telescope
★ Marking multiples: 2.5
★ marked specifications: 2.5X17.5
★ All high-quality composite achromatic ophthalmic lenses, high-quality transmission membrane, all metal.
★ multiple real, high-definition quality.