Telescope Objective lens or primary lens and Eyepiece or secondary lens

Description

Telescope Objective lens or primary lens and Eyepiece or secondary lens now available in Pakistan for handmade diy astronomical telescope for school and college students recommended for class 8 to 10.

These lenses are best for making a simple astronomical telescope which can be present in a science fair or classroom assignments.

Cost effective

Telescope Objective lens and Eyepiece

Specification

• Objective lenses/ Primary lenses
  •  lens focal length  45- 50 cm/ 400-550 mm
  • Diameter: 7.5cm / 75mm
  • Material: Glass
  • type: Non Achromatic lens
• Eyepiece / Secondary lens
  • Focal length  4 cm/ 40 mm
  • Diameter: 2.5cm / 25mm
  • Material: polycarbonate
  • type: Non Achromatic lens
  • lens protected with the outer black plastic ring

Refractive Double-separate Achromatic Lens Features:

•  DIY Double-separate Achromatic Lens
• Material: Full Optical glass F4+K9
• Shape: Separate with sapcer
• Real Caliber: 50mm
• Working Caliber: 50mm
• Coating: Blue film
• Use: Refractive Astronomical Telescope Objective Lens
• 50mm Caliber for astronomical telescope objective lens
• Full optical glass F4+K9 made with blue/green coating
• Double-separate convex achromatic lens
• Choose the lens base and lens hood.
• Expensive lens compare to simple lens

Pair of 45mm 25mm Biconvex Lens for DIY Google Cardboard VR Box