Features
Using PET + aluminum foil coating, strong and durable, not easy to break, long service life.
Protect your eyes and safely observe sun, dark spots, solar eclipse and planetary passage.
High density coating gives the true color of daylight white under sunlight.
Do not look directly at the sun without solar filter.
Suitable for 60/70mm/80mm/90mm A telescope, a must have item to safely observe the sun.
Specifications
Item Type: Solar Filter
Material: PET + aluminum foil coating + ABS
Color: As shown in pictures
Interface Size: Approx. 60mm/2.4", 70mm/2.8", 80mm/3.1", 90mm/3.5"
Film Diameter: Approx. 100mm/3.9"
Objective lens cover diameter: approx. 120mm/4.7"
Weight: approx. 75.0g/2.6oz
Fits 60/70mm/80mm/90mm Telescopes
How to use:
1. Use the film toward the sun, check if there is light leakage, and if there is light leakage, it is strictly prohibited
2. After detection, place the film cover in the light inlet and check the fixation and measure the light with the eyepiece in normal conditions, it can perform operation without any abnormal light.
3. Please do not move the membrane cover by nearby people during the observation process.