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.

Telescope Objective lens and Eyepiece

Specification

• Objective lens/ Primary lens
  • Focal length  50 cm/ 500 mm
  • Diameter: 7.5cm / 75mm
  • Material: Glass
  • type: Non Achromatic lens
• EyePiece / Secondary lens
  • Focal length  3 cm/ 30 mm
  • Diameter: 2.5cm / 25mm
  • Material: polycarbonate
  • type: Non Achromatic lens
  • lens protected with the outer black plastic ring