Please Measure Your Telescope Objective Diameters: The 80mm solar filter will fit a telescope with an external objective tube diameter of about 100.5mm. It can also be used on a telescope with an internal tube diameter of 105mm although it is designed for external tube fitting
Features:
Brand new and high quality
The Solar Filter is for telescopes dew tube front end diameter 80mm
Safely observing the sun without damaging your eyes
Product Type: Bard film
Applicable models: 80mm caliber Universal
Optical density: 5.0 Aperture of the telescope
Outside diameter: 104mm
Inside diameter: 101m
Material: Plastic
Main performance: observation of sunspots， solar eclipse and other astronomical scene
CAUTION:
Don't use cracked solar filter
Don't use bad quality solar filter
Don't look directly at the sun
Never look at the Sun， either directly or through a telescope， without a professionally made protective solar filter installed that completely covers the front of the instrument， or permanent eye damage could result.
