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TPO #12 Yellow Color Filter & Case - 1.25" Round Mounted

SKU : OS-F12

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  • #12 Yellow
  • Great for Planetary and Lunar Viewing!
  • Contrasts Strongly with Blue-Colored Features.
  • Enhances and Lightens Red and Orange Features.
  • Fits into the Barrel of 1.25 inch Eyepieces

 

Product Details

  • Eyepiece filters are an invaluable aid in lunar and planetary observing. They reduce glare and light scattering, increase contrast through selective filtration, increase definition and resolution, reduce irradiation and lessen eye fatigue.


    TPO filters are made of high quality, solid plane parallel glass with excellent homogeneity. They are anti-reflection coated to prevent glaring and ghosting. All eyepiece filters are threaded to fit most 1.25 inch eyepieces and offer a full 26mm clear aperture. Comes with a hinged, plastic case to keep your filter safe and clean when not in use.

    The TPO #12 Yellow Color Filter contrasts strongly with blue-colored features on Jupiter and Saturn, while enhancing red and orange features. Lightens red-orange features on Mars, while reducing or blocking the transmission, and thereby increasing the contrast, of blue-green areas. Useful in increasing the contrast of lunar features in telescopes 6" aperture and larger.

     

    TPO Product Number: OS-F12

     

  • specifications

    Filter TypeYellow
    Size1.25"
    Warranty2 Year Warranty
    Wratten #12
  • included items

    • #12 Yellow
    • Great for Planetary and Lunar Viewing!
    • Contrasts Strongly with Blue-Colored Features.
    • Enhances and Lightens Red and Orange Features.
    • Fits into the Barrel of 1.25 inch Eyepieces

     

Product Reviews

Customer Reviews
5.0 Based on 1 Reviews
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Filter Reviews:
  • filter wallet
  • term
  • tracking information
  • field eyepieces
  • violet light
  • downside
  • ease
  • aperture
  • threads
  • issue
A
12/14/2021
Anonymous
United States United States

Great Quality Filter

This TPO (GSO) #12 Yellow filter works great to filter unfocused violet light with achromatic telescopes. It also threads onto eyepieces with ease. It's about as close to full aperture as possible for a 1.25" filter, so vignetting with widest field eyepieces won't be an issue. It arrived quickly and in perfect condition with good tracking information. The only downside is that the filter box is way too large to store it in long term. Since I have a filter wallet, that's not an issue for me, but some people like to store their filters in their original filter boxes, so I thought I should mention it.