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Thousand Oaks Type 2+ Glass Solar Filter 150mm/6”

 

ID:  154mm

Clear Aperture:  127mTo fit 150mm/6” telescopes tubes.

The filter is supplied with a generous amount of thick felt that provide a very snug fit. 

Made by Thousand Oaks Optical, these full-aperture glass solar filters fit tightly over the end the front aperture of the telescope tube. These white-light solar filters are the gold standard of eclipse chasers around the world.

Genuine Thousand Oaks Optical Type 2+ Glass solar filters start with hand selection of high quality glass substrate and are then coated with Thousand Oaks' proprietary Type 2+ coating that produces a natural warm yellow solar image.

The hard coating is the most durable in the solar filter industry. Guaranteed to last for at least fifteen years, if properly cared for filters could easily last a lifetime.

Quality is paramount, independently tested for safety, these solar filters transmit only 1/1000th of 1.0% of the light.

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These filters are made with deposits on the glass. Note that there are often pinholes in this process. 

Thousand Oaks put a dab of black paint to cover any pinholes.  2nd high-contrast image shows 4 such black dots.

This of course has absolutely no effect on the image, and is common on these glass filters.

Filed under: Eyepieces & Accessories