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Use Mr. Star Guy's 66-94mm Adjustable Objective Solar Filter to adapt your nighttime refractor telescope for viewing the Sun. Outfitted with three thumbscrews for a secure and centered fit, this filter is designed to fit over the entire objective bell so for the correct fit simply measure the outside diameter of the bell - including hardware like retaining rings and screw heads - and choose the size that matches the measurement with some extra room. This model is made to fit objective bells measuring 66-94mm (2.598-3.7").
The filter housing is made of a lightweight and durable aluminum alloy with a scratch-resistant anodized finish. The filter is a durable and rip-resistant film that delivers high-contrast images of the Sun with a neutral color balance revealing the Sun in white, as opposed to the more common red or blue seen when viewing through other solar filters, which restricts bands of the visual spectrum and inhibits clear viewing. A coating is applied to each side of the film to prevent rips and pinholes to ensure safe solar viewing.
In the Box
MrStarGuy Adjustable Objective Solar Filter (66-94mm OD)