User manual ORION TELESCOPES & BINOCULARS C 5560 POLARIZER

[. . . ] Variable Polarizing Filter #5560 1. 25" Version #5562 2" Version The Orion variable polarizing filter reduces the amount of light entering your eyepiece from your telescope. You can dim the view when observing a bright object, such as the Moon or a planet. [. . . ] Thread the filter into the eyepiece until it is finger tight. You may also "stack" other filters by threading them into the bottom of the variable polarizer. Using the Polarizing Filter Insert the eyepiece with the filter attached into the telescope and focus the image. If the image is too bright or too dark, then remove the eyepiece and rotate the ring on the filter a small amount. Don't turn it too much, as the filter goes from its maximum light transmission to its minimum transmission in just a 1/4 turn of the ring. Re-insert the eyepiece and check the image again. Repeat this process until you have the desired level of brightness. Terrestrial Viewing The variable polarizing filter can be used during the day to reduce sunlight glare from lakes, oceans, or window glass. Simply unthread the lower half from the upper half of the filter and thread either half into a eyepiece. Once the eyepiece is returned to the telescope and focused, rotate it in the focuser to reduce glare. You will not be able to reduce overall brightness by using only one filter, but you will be surprised at how much control you have over reflected light. Figure 1. Assembling the 1. 25" Variable Polarizing Filter. Cleaning & Maintenance When not in use, the variable polarizing filter should be kept in its original padded case. Given proper care and storage, the filter should last a lifetime. Should the filter need cleaning for any reason, use the following directions to clean the filter without damaging it. [. . . ] Specifications Filter Material: Polarized optical glass Coatings: Coated with MgF2 to reduce reflections Maximum Transmission: 40% Minimum Transmission: 1% Housing: Anodized aluminum Customer Support (800) 676-1343 E-mail: support@telescope. com Providing Exceptional Consumer Optical Products Since 1975 Corporate Offices (831) 763-7000 P. O. Box 1815, Santa Cruz, CA 95061 IN 006 Rev. [. . . ]