Front-Mount PET Solar Filter Film for Optics

Match the outside diameter of your telescope, spotting scope or camera hood when comparing this front-mount PET-coated filter. It is for optics users checking accessory fit. Its suitability for direct solar viewing has not been independently verified.

• ✅ Start with your own equipment — Measure the outside diameter where the filter would sit.
• ✅ Compare the fit before ordering — Use the size range shown for each option.
• ✅ Account for the hood — Measure the fitted hood if that is where the accessory would mount.
• ✅ Check your setup by dimensions — Use the measured diameter across telescope, scope and camera fittings.

Measure the outside of your optics hood

The size options refer to the outside mounting diameter rather than the clear aperture. A telescope model number alone cannot establish fit.

Do not use this product for direct solar viewing or aim optics at the Sun with it unless a qualified expert has verified the filter for your exact setup. See NASA’s Eclipse Viewing Safety guidance.

Technical details

• Material: PET-coated film
• Finish: double-sided silver coating
• Mount position: front of the optics hood
• Fit: by outside diameter
• Available fit ranges: 47–73 mm to 217–243 mm

Measure your hood and compare its outside diameter with the available sizes.

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