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
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
Name Waseem Akhter (verified owner) –
good for beginners