TPO #12 Yellow Color Filter & Case - 2"


TPO #12 Yellow (74% transmission) Filter Features:

  • 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-inch aperture and larger.


  • Reduce Irradiation.
  • Strong Contrasts on Blue-colored Features.
  • 74% Transmission.
  • Filter Size: 2 inches.
  • Mounted Filter.
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  • Regular price $18.95

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TPO #12 Yellow Color Filter & Case - 2"

Eyepiece filters are an invaluable aid in lunar and planetary observation.

Benefits of Using The TPO #12 Yellow Filter

  • Reduces glare and light scattering.
  • Increases contrast through selective filtration.
  • Increases definition and resolution.
  • Reduces irradiation.
  • Lessens eye fatigue.

TPO filters are made of premium, solid-plane parallel glass with excellent homogeneity. They are AR coated to prevent glaring and ghosting. This eyepiece filter is threaded to fit most 2-inch eyepieces and comes with a hinged plastic case to keep your filter safe and clean when not in use.

TPO Product Number: OS-F2-12


Filter TypeYellow
Free ShippingYes
Warranty2 Year Warranty
Wratten #12