TS Optics 1.25" Filterset - 4 filters for telescopes from 80 - 140 mm aperture

Three color and one neutral grey filter. They can be combined with each other.

With this set of four high quality TS filters, one can improve the observation quality on Moon and Planets. Even at double stars, improvements are possible. The filters can be used for both visual observation and photography.

The neutral grey filter reduces e.g. the glare of the moon (if used alone) and can enhance the effect of the other filters if combined with them.

This set is recommended for telescopes from 80mm to 140mm aperture. All filters are made from optical glass substrate, have a metal mount with threads on both sides.

Our set includes the following filters

• Yellow #12
  Enhances contrast on the moon, reveals surface details and clouds on Mars, enhances cloud structures on Jupiter (e.g. the Great Red Spot). Can be used in double star observations with refractors, because it reduces false colour in Fraunhofer refractors
• Light Red #23A
  For very high contrast on the Moon, suitable for small aperture telescopes. This filter is used when observing the polar ice caps on Mars (100mm aperture and larger). Well suited for Venus by blocking the blue daylight. The sky appears black.
• Blue #80A
  General contrast gain on the moon, off its terminator. Enhances contrast in Jupiter's and Saturn's cloud bands. Enhances surface details on Mars. In large aperture telescopes you may see cloud details on Venus. Good comet filter, because it boosts contrast in the comet's tail.
• ND06 neutral gray
  Neutral density without color effect and 25% transmission. For reducing glare at lunar observations or in combination with a solar filter at solar observations.

General information about the filters

• Plano-parallel glass substrate and anti-reflective coated surfaces
• Metal cell with M28.5 filter threads on both side, suitable for 1.25" eyepieces and adapters
• Filters can be combined by screwing them into each other

Delivery contents

• 3 colour filters and 1 neutral grey filter each in a plastic storage case