The Cassini C-900135TR telescope is mounted on Cassini's new Tracker altitude/azimuth mount. It's easy to use up and down, left and right movement allows tracking an object with unprecedented precision using both manual macro adjustments for aiming your telescope and manual micro adjustments for precise observing and tracking. The C-900135TR includes Cassini's sturdy, fully adjustable, pre-assembled metal tripod featuring an accessory tray with slots to place 4 1¼" eyepieces or lenses and retractable rubber feet.

The included Cassini Color Filter Wheel is another innovative device for telescopes from Cassini. Filtering out certain bands of light can be very useful when observing astronomical objects. Normally to use filters with your telescope you would have to thread the filters on and off your eyepieces as you are use them. With the Cassini Color Filter Wheel, you simply switch eyepieces as you normally would. To switch filters, just rotate the dial on the Cassini Color Filter Wheel. The C.F.W. has three filter settings: Nebula, Planetary and Clear. The Nebular filter is great for filtering out light pollution such as ground light. UHC (Ultra High Contrast) filters block a large fraction of light pollution and bring out the details of planetary nebulae and most of emission nebulae under a dark sky. The Planetary filter is great for viewing the moon and planets by increasing contrast - helps to bring out dark surface detail on Jupiter and Saturn, darkens the maria on Mars, and improves visual detail when viewing Neptune and Uranus. 3rd slot - Empty to use additional filter of your choice or left empty so objects can be viewed normally without having to remove the Color Filter Wheel. Additionally, the filters are universal 1.25 threaded filters so you can switch them out with other filters for more usability.

The C-900135TR optical tube assembly features an 900mm focal length. The large primary mirror is 135mm in diameter and in mounted in a heavy duty mirror cell with push / pull collimation screws. The finder is Cassini's Mars-Eye Electronic Finder which helps by getting the observer behind the telescope without losing the surrounding field of view when targeting objects. Included with the C-900135TR are a 1¼" 10mm Plössl eyepiece, a 1¼" 25mm Astroscopic Eyepiece, and a 2 element 3x Astroscopic Barlow. Lastly, the Cassini Stellarium CD ROM brings skies over your home or anywhere in the world.

• Cassini TRACKER mount w/Slow Motion
  Vertical & Horizontal Manual Controls
• 900mm x 135mm Optical Tube Assembly
• Diffraction limited Optical Tube Assembly (λ4)
• Fully Adjustable Heavy Duty, Pre-assembled Metal
  Tripod w/Accessory Tray
• Cassini Mars Eye Electronic Finderscope
• 1¼" Helical Rack & Pinion Focusing
• 1¼" 10mm Plössl Eyepiece
• 1¼" 25mm Astroscopic Eyepiece
• 1¼" 3x 2-Element Astroscopic Barlow
• Cassini Stellarium CD-ROM
• One Year Limited Warranty

The Cassini Color Filter Wheel Features and Benefits:

• 3 Filter Settings: Nebula, Planetary, and Empty/Clear
• Universal 1.25″slots for Filter Switching.
• Rotating Bezel Metal Construction