Yellow Colour 1.25" Telescope Filter - (74% transmission) Enhances Red/Orange Features On Saturn & Jupiter - Increases Contrast Of Blue/Green Features On Mars - Includes Plastic Protection Hard Case

• 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.
• These filters are made of high quality, solid plane parallel glass with excellent homogeneity.
• They are anti-reflection coated to prevent glaring and ghosting.
• All eyepiece filters are threaded to fit most 1.25" eyepieces and offer a full 26mm clear aperture. Comes with a hinged, plastic case to keep your filter safe and clean when not in use.

The #12 Yellow Color Filter contrasts strongly with blue-colored features on Jupiter and Saturn, while enhancing red and orange features. Lightens red-orange features on Mars, while reducing the transmission, and thereby increasing the contrast, of blue-green areas.