Omegon Colour Filter #11 Yellowgreen 2″

Omegon colour filter #11 yellowgreen 2″

If you want to get the most out of visual observation of planets, the Moon or double stars, a correctly chosen colour filter can make a real difference. The Omegon colour filter #11 yellowgreen in 2″ format is a classic representative of the yellowgreen filter group - one of the most versatile choices in planetary astronomy. Thanks to its characteristic transmission band, it suppresses part of the red and blue light while passing primarily yellowgreen wavelengths, which significantly increases the contrast of fine surface details.

What can you observe with filter #11?

Filter #11 is particularly popular for observing Jupiter and Saturn. It enhances the belts and zones of Jupiter, helps to better distinguish structures in its atmosphere, and improves the visibility of details in Saturn's clouds. On Mars it contributes to the contrast of surface formations and polar caps. When observing the Moon, the filter pleasantly reduces brightness while preserving relief details.

This makes it an ideal choice for anyone who wants to get more out of planetary observation without having to invest in more complex equipment. The filter is intended exclusively for visual use - it is not primarily designed for photographic purposes.

Key benefits at a glance

• Enhanced contrast of atmospheric belts and zones on Jupiter
• Better visibility of cloud details on Saturn
• Improved surface and polar cap contrast on Mars
• Comfortable Moon observation with reduced glare
• Natural yellowgreen transmission - easy on the eye during long sessions

Construction and compatibility

The filter body is made of aluminium, which ensures durability, low weight and precise threaded mounting. The filter screws into the standard 2″ eyepiece thread, making it fully compatible with the vast majority of modern eyepieces and diagonals of this format. Installation is quick and secure - simply screw the filter into the bottom of the eyepiece and you are ready to observe.

Omegon Basic series

The Omegon Basic range offers solid optical quality at an accessible price, making this filter a sensible choice for both beginners and more experienced observers looking for a reliable addition to their accessories. The yellowgreen colour of the filter is among the most natural for the human eye, so observation remains comfortable even during longer sessions at the eyepiece.

Omegon is a brand with a long-standing tradition in astronomical equipment, developing products in collaboration with practising astronomers. Its philosophy is built on the belief that quality astronomical accessories should be accessible to every enthusiast - from a beginner who has just acquired their first telescope to an experienced observer with demanding requirements. The Basic range is not a compromise at any cost, but a well-considered choice for those seeking reliable and functional equipment without unnecessary surcharges.

Omegon also offers one of the widest ranges of astronomical accessories on the market, so the #11 yellowgreen filter can be your first step towards gradually building a colour filter set for systematic planetary observation.

Technical specifications