Arcturus Variable Polarizing Filter 1.25 Inch

Article number: SP10528
Availability: In stock
Delivery time: Ships Next Day

The 1.25" Variable Polarizing Filter is the all-phase lunar filter for large telescopes. Transmittance is continuously variable from 5% to 35%. Fits 1.25" 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.

The 1.25" Variable Polarizing Filter is the all-phase lunar filter for large telescopes. Transmittance is continuously variable from 5% to 35%. Fits 1.25" 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 Variable Polarizing eyepiece filters act like a dimmer switch for your telescope, helpfully decreasing Moon glare and optimizing resolution of lunar features like craters and mountains
  • Adjustable polarized filters are capable of providing 1% light transmission all the way up to 40% providing much finer control of image brightness compared to a standard fixed-transmission eyepiece filter
  • Allows you to optimize viewing contrast on any phase of the Moon from crescent to full in any size telescope
  • Available in both 1.25" and 2" sizes for use with filter-threaded 1.25" or 2" eyepieces
  • Filters thread directly into properly sized eyepieces for use

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!

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