TPO #80A Medium Blue Filter & Case - 2"

TPO #80A Medium Blue Filter & Case - 2"
Item # OS-F2-80A
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  • Threads into barrels of 2" eyepieces and other accessories.
  • The TPO #80A Blue Color Filter (30% transmission) enhances contrast of Jupiters cloud belts, as well as details of the Red Spot.
  • Also brings out details in Saturns belts and polar area.
  • Use on the Moon to enhance contrast.
  • The TPO #80A Blue Color Filter comes with a hinged, plastic storage case.
  • For terms and conditions please examine the TPO Warranty page here.



TPO #80A Medium Blue 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. These eyepiece filters are threaded to fit most 2" eyepieces and other accessories with a 2" barrel. Comes with a hinged, plastic case to keep your filter safe and clean when not in use.

The TPO #80A Blue (30% transmission) is a popular filter for the study of Jupiter and Saturn. Enhances contrast of rilles and festoons in Jupiter’s cloud belts, as well as details of the Red Spot. Brings out detail in Saturn’s belts and polar phenomena. Very useful as a contrast-enhancing lunar filter.

TPO Product Number: OS-F2-80A

Additional Information

Additional Information

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 2 Year Warranty
Wratten # 80A
Included Items

Included Items

  • TPO #80A Medium Blue Filter - 2"
  • Case
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