1.25" Orion Mars Observation Eyepiece Filter
Item #05599
4.5 / 5.0
Do you want more detailed views of Mars through your telescope? This 1.25" Orion Mars Observation Telescope Filter increases contrast to bring out subtle details, dramatically improving views even in smaller astronomical telescopes.
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  • More Info
    • High-performance observational eyepiece filter markedly improves views of Mars
    • Fully-coated Mars filter increases contrast to bring out subtle details on the disc of the red planet
    • When using the Mars filter on a clear, dark evening you'll see polar ice cap detail, subtle mare shadings, duststorm and cloud activity
    • Eyepiece filter dramatically improves views of Mars even in smaller astronomical telescopes
    • Designed to fit 1.25" telescope eyepieces with filter threads. Metal filter cell construction.

    The custom-designed Orion Mars Observation filter enhances contrast of virtually all surface features. Dielectric coatings transmit violet/blue (<505nm) and orange/red (>615nm) wavelengths where detail is rich, while blocking overbearing yellow/green (515nm-615nm) wavelengths. Polar icecaps appear more sharply defined, and differences in landscape shading are nicely resolved. Polar hazes and cloud cover become visible. The filter's high transmission makes it effective even in small telescopes. This custom-engineered Orion telescope filter comes with a protective plastic case.


    Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-447-1001.

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    Orders received by 1pm Eastern Standard Time for in-stock items ship the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

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