| Article number: | SP10539 |
| Availability: | In stock |
| Delivery time: | Ships Next Day |
This 2" Variable Polarizing Filter, is the all-phase lunar filter for large telescopes. Transmittance is continuously variable from about 5% to 35%. Fits 2" eyepieces. These Polarizing Filters are made from renowned Schott- Hoya optical glass and allow for maximum contrast of lunar detail. Individually precision ground, highly polished with maximum light transmission coatings on both sides, these filters are 100% guaranteed for life.
This 2" Variable Polarizing Filter, is the all-phase lunar filter for large telescopes. Transmittance is continuously variable from about 5% to 35%. Fits 2" eyepieces. These Polarizing Filters are made from renowned Schott- Hoya optical glass and allow for maximum contrast of lunar detail. Individually precision ground, highly polished with maximum light transmission coatings on both sides, these filters are 100% guaranteed for life.
These versatile filters work like a dimmer switch for your telescope! Variable Polarizing Filters let you adjust the brightness of visual images to an optimal level. They are ideal for toning down luanr glare to a comfortable brightness, depending on the phase of the Moon and the magnification used. You will see more detail in bright views of the Moon or a planet, or in the Airy disk of a bright star, while barely altering the color of the object.
Each Variable Polarizing Filter consists of two polarizing layers mounted in a special cell, which when rotated varies the light transmission from 1% to 40%. The filters thread into like-sized telescope eyepiece or threaded diagonals. Available in 1.25" and 2" sizes.
Essential for regular observers of the Moon!