Portable thumb ultra-miniature telescope

All-metal mirror body, strong and durable, feel good! Anti-reflection objective lens is coated with blue film, light transmittance and high definition.

[Size]: Only 35x22mm

[Form]: 3 pieces of 2-group objective lens

【Magnification】：2.5x17.5----

[Exit pupil]: 13.5 mm

[Accessories]: Plastic box

[Lens]: All use high-quality composite fully achromatic optical lenses, high-quality anti-reflection film, all metal.

  17.5 mm in diameter, 30 mm in length, net weight 20 grams