Adjustable 60-90mm Solar Filter Sun Film Telescope Accessories
Description:
Frame Materials: Plastic
Film Materials: PET+ Aluminum foil coating
60--90mm Solar Film suit for telescope objective lens outer diameter within 60-90mm (about 2.4-3.5 inches).
Features:
1. That type film is different with Baader Film, with that type sun film,  watched the sun is reddish yellow color.
2. This solar film reduces light and harmful radiation without reducing the contrast of the subject, and using this solar film as a sun filter can achieve better image quality.
3. This solar film is not easy to break, suitable for long-term use in the natural environment, especially when photography, not afraid of wind and rain.
4.This solar film is suitable for 60-90mm telescopes to view the sun safely, such as  80MM 70MM  90MM 60MM   
5. When the film is dirty, it can also be cleaned with a clean rag or washed with water.
NOTE: 
Do not use it if the product is damaged to prevent eye damage.
Directly point the Sun film to the sun, check to see if there is light leakage, and it is strictly prohibited to use it.
After the inspection is completed, put the Sun film cover on the light inlet, check the fixation, and it is in good condition!  Metering at the eyepiece, no abnormal bright light can be operated!