Telescopes & Astronomy

Adding the ZWO O-III Narrowband filter to your imaging collection will help you go beyond RGB imaging and capture your favorite nebulae in a totally new light, no matter how polluted your skies may be!

• Instantly transform your normal Celestron 6” Schmidt-Cassegrain telescopes(6" SCT) into a yellow-light solar telescope (complete list of 6" SCT look in description section)
• ISO compliant solar safe film protects your eyes when viewing the sun, unlike some other filters on the market
• Solar film produced in the USA by American Paper Optics, one of the suppliers recommended by NASA for safe solar viewing
• Designed from the telescope’s lens cap for a snug fit, each filter includes two safety Velcro straps and four self-adhesive Velcro pads for safely securing your solar filter in place

• This Celestron 2” Eyepiece and Filter Kit includes all the accessories you need to start using 2” eyepieces on your Schmidt-Cassegrain or refractor telescope
• You’ll get a 2” Mirror Diagonal, three E-Lux 2” eyepieces, a 2” 2X Barlow Lens, five colored filters to improve observations of the planets, and a foam-fitted aluminum carry case
• The 2” 90° Mirror Diagonal accepts 2” eyepieces, and attaches to the rear cell of SCT’s.  An adapter is included for use with refractor telescopes.
• Celestron E-Lux eyepieces are a 3-element, fully multi-coated design.  You’ll get a 26 mm, a 32 mm, and a 40 mm, for a great choice of magnification and field of view.  Multiply your options by 2X when you use your 2” eyepieces with the included 2X Barlow.
• The most popular planetary filters are included in this kit.  They are threaded to attach to most any 2” eyepiece or accessory.   

• High-performance observational eyepiece filter markedly improves views of Mars
• Fully-coated Mars filter increases contrast to bring out subtle details on the disc of the red planet
• When using the Mars filter on a clear, dark evening you'll see polar ice cap detail, subtle mare shadings, duststorm and cloud activity
• Eyepiece filter dramatically improves views of Mars even in smaller astronomical telescopes
• Designed to fit 1.25" telescope eyepieces with filter threads. Metal filter cell construction.

• This 1.25” Eyepiece & Filter Kit includes 14 accessories that will add new life to your telescope and your observing!
• You’ll get five quality Plossl eyepieces, a 2X Barlow Lens, six colored filters to improve observations of the planets, a Moon filter, and a foam-fitted aluminum carry case with extra room to grow
• Five eyepieces and a Barlow lens equals 10 different magnifications to choose from, including the equivalent of a 3 mm, 4 mm, 6 mm, 6.5 mm, 8 mm, 8.5 mm, 13 mm, 16 mm, 17 mm and 32 mm.  And that doesn’t include eyepieces you may already have in your collection, which will now achieve double the magnification with the addition of the Barlow.
• A Moon filter will increase your enjoyment of lunar observations by dimming the brightness and increasing contrast
• The most popular planetary filters are included in this kit.  Have fun seeing what a blue filter will reveal about Jupiter, or unveil the polar ice caps on Mars with a red or orange filter.  

The Sirius 2 inch UHC Skyglow Broadband CLS Filter effectively reduces light pollution, enhancing contrast and detail when observing or imaging deep-sky objects from urban and suburban locations. Designed to fit standard 2-inch eyepieces and accessories, this broadband filter selectively blocks artificial light while transmitting key nebula and star wavelengths for clearer, more vibrant views of the night sky.

The Sirius Optics No. 11 Yellow-Green Filter enhances planetary views by boosting contrast on Jupiter's belt details, darkening the Maria on Mars, and accentuating Saturn's Cassini Division. Crafted from dyed-in-the-mass optical glass for premium clarity, this 1.25-inch filter threads easily into standard eyepiece barrels and can be stacked with other filters for selective color filtration.

The Sirius Optics 1.25-inch UHC Skyglow Broadband CLS Filter is designed for visual deep-sky observation, allowing nearly 100% transmission of critical O-III, H-beta, and H-alpha emission lines while filtering out unwanted light pollution. By dramatically reducing sky background glow, this filter reveals gas and planetary nebulae with stunning detail, making it an excellent choice even for smaller telescopes.

• Fits 1.25" eyepieces

Enhances:

• Clouds and atmospheric features of Venus
• Atmospheric clouds and polar ice caps on Mars
• Cloud belts and moon transits of Jupiter
• Cloud belts on Saturn