TPO #12 Yellow Color Filter & Case - 2"

TPO #12 Yellow Color Filter & Case - 2"
Item # OS-F2-12
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  • This TPO #12 Yellow Filter will attach to eyepieces & other accessories with 2" barrels.
  • #12 Yellow (74% transmission) enhances red/orange features on Saturn & Jupiter.
  • Increases contrast of blue/green features on Mars.
  • The TPO #12 Yellow Filter comes with a hinged, plastic storage case.


TPO #12 Yellow Filter - 2"

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. This eyepiece filter is threaded to fit most 2" eyepieces, and comes with a hinged, plastic case to keep your filter safe and clean when not in use.

#12 Yellow (74% transmission) 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-F2-12
Additional Information

Additional Information

SKU OS-F2-12
Manufacturer TPO
Type of Filter Color
Filter Usage Imaging, Visual
Single or Set? Single Filter
Filter Size 2"
Filter Shape Round
Filter Mounted? Mounted
Warranty 90 Day Warranty
Wratten # 12
Included Items

Included Items

  • TPO #12 Yellow Filter - 2"
  • Case
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