Svbony Variable Polarizing Filters for Eyepieces - F9147

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The VPL Filter has premium quality metal rim and optics glass lens . Reduce glare and increase contrast of the Moon with the Svbony 1.25"/2'' VPL Filters. Also useful for extra bri ght planets as well as terrestrial viewing over sand or snow. We provide you with two sizes to choose from, 1.25" and 2". Adjust the amount of light transmission from 1% to 40% by rotating the filter housing. Finer control of the image brightness compared to a standard fixed-transmission telescope filter for optimal performance. The Svbony VPL Filter simply screws onto the insert barrel of most 1.25"/2" eyepieces. A VPL Filter is also helpful when observing Venus or bright terrestrial scenes. This filter is not suitable for viewing the Sun. This VPL affects metering and autofocus, and is generally not suitable for digital cameras with a high degree of automation Specifications Model F9147A F9147B Type Variable Polarizing Filter Material Optical glass lens + Aluminum Frame Barrel diameter 1.25'' 2'' Thread Standard M28.5*0.6 M48*0.75 Show more