Astromania 1.25" Mars Observing Eyepiece Filter - Prepare for July's Opposition - Designed to Ferret Out Resolution of Martian Polar Regions, Highland Mountain ranges, and expansive mare flatlands

Astromania 1.25" Mars Filter is an excellent multi-purpose filter for viewing all features of Mars. Polar caps stand out prominently. Landscape features like mare and highland mountain ranges are easily separated and resolved. Polar hazes and cloud cover become visible. Fully-coated Mars filter: An invaluable tool for any planetary viewer with an interest in the red planet, increases contrast to bring out subtle details on the disc of the red planet. It's thread into the barrels of virtually any 1.25" telescope eyepiece, the threads on both sides of the filter make it also possible to combine different filters. High-performance observational eyepiece filter helps reveal feature details of Mars easily in any telescope, you'll see polar ice cap detail, subtle mare shadings, duststorm and cloud activity when using the Mars filter on a clear, dark evening. The filter mount is precision manufactured from metal and is extremely thin to minimise shadowing and diffraction. Machined of high quality aluminum and anodized black, durable for long time use.