TPO #58A Green Color Filter & Case - 2"

TPO #58A Green Color Filter & Case - 2"
Item # OS-F2-58A
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  • The Third Planet Optics #58A Green Color Filter works best with 8" or larger telescopes due to the low light transmission (24%).
  • This filter is helpful for observations of the polar ice caps on Mars and to increase contrast in the red and bluish regions of Jupiter's atmosphere.
  • The TPO #58A Green Color Filter fits 2" eyepieces and other accessories with threaded 2" barrels.
  • Comes with a hinged, plastic case for storage and protection.


TPO #58A Green Color Filter for 2" Eyepieces

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.

Third Planet Optics 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 it safe and clean when not in use.

#58A Green (24% transmission): Use the #58 Green Filter on telescopes 8" aperture and larger to reject blue- and red-toned structures on the surface of Jupiter and thereby increase their contrast relative to lighter parts of the disc. The TPO 58 Green Filter can also be used to enhance Saturn cloud belts and polar regions. This filter strongly increases the contrast of Mars; polar ice caps, and increases contrast of atmospheric phenomena on Venus.

TPO Product Number: OS-F2-58A

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 1 Year Warranty
Wratten # 58A
Included Items

Included Items

  • TPO #58A Green Filter in 2" metal cell
  • Plastic case
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