Astrophotography

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!

• Flat field free of optical aberrations like field curvature, coma, astigmatism and chromatic aberration across an entire APS-C sensor.
• Unlike the larger RASAs that work with DSLR and large CCD cameras, the 8” model was designed with color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras in mind. The telescope does not work with standard DSLR cameras.
• NEW Ultra-Stable Focus System – six precision sealed ball bearings virtually eliminate image shift.
• Integrated air cooling system –12V DC MagLev fan reduces cooldown time and provides optimal air flow while filtering out dust.
• Internal filter mount – seamlessly accommodates a Light Pollution Imaging Filter into the optical path.
• CGE dovetail mounting rail.
• Performs over a wider spectral range than most telescopes, from 390-800 nm, so more of the light passing through the astrograph is in sharp focus.

• Increased 75 lb load capacity. Exceptional load capacity to weight ratio
• Additional Aux accessory ports and autoguider port on the Dec axis for better cable management
• Larger 144 mm diameter worm wheels to better and more accurately drive heavier loads
• Longer 270 mm dovetail saddle to better support larger optical tubes
• Massive 70 mm stainless steel tripod legs with a wider stance for improved stability under heavy loads
• New accessory tray holds three 1.25” and two 2” eyepieces with an upright stand for your smartphone or tablet
• Heavy duty, 31.5 mm stainless steel counterweight shaft to support additional counterweights
• Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh
• Internal cabling for worry-free remote operation. Power input and lower accessory ports remain stationary while the mount slews to avoid snags
• Includes Celestron's new PWI telescope control software, co-developed by PlaneWave Instruments. Software features multi-point mount modeling for extremely precise pointing accuracy
• Adjustable EQ head position to optimize center of gravity over the tripod and fully utilize the increased 3°-65° latitude range
• Integrated handles for easy transport and portability
• All-new ergonomically designed dovetail clamping knobs

• Custom made for CGX and CGX-L Mounts
• Adjustable bracket angle for best accessibility
• 6x magnification
• Simple reticle map easily locates the celestial pole without the need to reference an app or location & time
• Scope tilt is adjustable to allow for accurate polar alignment

• 11" HD Optical Tube Assembly
• CGX EQ Mount and Tripod
• Celestron’s premium StarBright XLT coatings provide maximum light transmission
• A 9x50 finderscope, 2” mirror diagonal for more comfortable viewing, and wide-angle 23 mm Luminos 2" eyepiece are all included

• 9.25" HD Optical Tube Assembly
• CGX EQ Mount and Tripod
• Celestron’s premium StarBright XLT coatings provide maximum light transmission
• A 9x50 finderscope, 2” mirror diagonal for more comfortable viewing, and wide-angle 23 mm Luminos 2" eyepiece are all included

For customers wishing to fit solar filters, the outside OTA diameter is 272 mm.

NOTE: For solar viewing the Astrozap Glass Solar filter (Product No. 124446) is recommended.

2" with M48 thread extension/spacer ring male and female threads on each side with 10mm spacing/extension.

2" with M48 thread extension/spacer ring male and female threads on each side with 15mm spacing/extension.

2" with M48 thread extension/spacer ring male and female threads on each side with 20mm spacing/extension.