Spectrum Telescope Glass Solar Filter ST500G
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Model os ST500G. This is a 5 inch filter with a clear apertute of 4 inches.
I am rating as very good conditions because of a few minor marks on the
aluminum portion but the actual glass is excellent. Only used a few times.
Sells new for $116.00 so $75.00 including shipping to conus is a good deal.
This full aperture glass solar filter allows only a safe amount of light to pass through your telescope, spotting scope, etc. for solar viewing or imaging. It is an ND 5 filter and therefore blocks 99.999% of the Sun's visible light. It is made from hand-selected glass that is of high quality and coated with a thoroughly inspected reflective coating. The image of the sun viewed through this glass solar filter has a yellowish-orange natural look when directly viewed through a telescope or if photographed.
The glass filter is mounted in an aluminum cell that can be securely attached to the telescope tube with the included nylon thumb screw(s). This filter comes packaged in a foam-lined shipping/storage box. Instructions for storage and care are also included.
Funding Member
