Filter set for telescopes with a diameter of 1.25" Solar System F4 Levenhuk

Product description:

• Set of four telescope filters, perfect for studying outer space.
• They increase the contrast between the inhomogeneously illuminated areas of the planets, which makes it possible to observe more small details.
• All filters have an eyepiece tube diameter of 1.25" and are equipped with an internal thread for combining different filters.
• Optical filter no. 23A (light red):
  • Ideal for observing the planets of the solar system, especially Mars, Saturn and Jupiter.
  • It is also very suitable for daytime observations of Venus and twilight observations of Mercury.
  • It emphasises the brightness of dust particles in the tails of comets.
  • It has a low light transmission and is recommended for use with telescopes with an aperture of 130 mm.
• Optical filter no. 58 (green):
  • It is also recommended for use with telescopes with an aperture of 130 mm.
  • When installed on lens (refractor) telescopes, it effectively removes chromaticity and increases image resolution.
  • It is recommended for observing Mars, the polar regions of Saturn and the atmosphere of Jupiter, as well as the moon and bright comets.
• Optical filter no. 80A (blue)
  • This is one of the most popular filters for observing planets.
  • It is irreplaceable when examining Jupiter's Great Red Spot and the details of Saturn's rings.
  • It is also very suitable for studying the atmosphere and the polar caps of Mars.
  • It is useful when observing Venus and Mercury.
  • In addition, it can be used to observe binary stars, comets and the moon.
• Optical filter no. 12 (yellow)
  • It has a high light transmission, so it can be used in small aperture telescopes.
  • One of the most popular filters for observing Mars.
  • It is very suitable for observing Jupiter and Saturn, as well as for detailed studies of the rings of Neptune and Uranus.
  • It can be used for observing comet tails and the lunar surface.
• The filters are made of optical glass, and provide a sharp and clear image.
• The kit includes a plastic storage case.

Technical data:

• Optical material: optical glass.
• External thread (for eyepiece installation): yes, 1.25".
• Internal thread (for combining different filters): yes.
• Operating temperature range, °C -5...35.
• Usage: General purpose product. Can be used by children over 3 years of age.