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Important note: Please measure the outer diameter of your astronomical telescope before purchasing, because the size marked on your astronomical telescope is the inner diameter, and our products need to be installed on the outer diameter. Please browse the details carefully to purchase a matching model.
This solar filter film could filter the sun's rays efficiently,allow you view the sun safety
Two sides high density coating without streak and blister point ensure the safety of the user's eye
High density coating also eliminate pinhole effect provide sun's true color neutral white,not blue or orange
Fit for all 70mm to 152mm Aperture Telescope.
Border Material: Aluminum
Can Be Fixed Diameter: 190-222mm
Through Aperture: 200mm
Bard Film Density: 5.0
Please measure your telescope hood outer diameter before buy Determining meet "Can Be Fixed Diameter",Can use.
The fixing is composed of screws + rubber, so it cannot be very precise. The installation size will have a deviation of (—+5MM).Please consider the problem of deviation when purchasing.
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.