Celestron C4-R Advanced Refracting Telescope #21016 carefully designed for the more advanced astronomer and feature exquisite optics on a heavy-duty mount. The optics of this telescope are made to exacting standards, with high quality materials to ensure top performance. The Celestron C4R offers a 63% increase in image brightness over 80mm models, with the larger aperture delivering incredible images of the moon; Saturn and its ring structure; Jupiter and its belts; and hundreds of deep-sky objects, including galaxies, nebulae and star clusters. Celestron C4 R is mounted on the CG-4 mount. The mount features precision gears for extremely smooth motion. A counterweight, latitude scale, setting circles, and slow motion controls on both axes are standard, so you have a fully loaded telescope right from the start.

For more information on Celestron C4-R Advanced Refracting Telescope #21016 please make sure to check out the Celestron C4-R Advanced Refracting Telescope Manual in PDF format (~291KB).

Specifications for Celestron C4-R Advanced Refracting Telescope #21016:

Optical Design:		Achromatic Refractor
Optical Diameter:		4.0" (102mm)
Focal Length:		39.4" (1000mm)
Focal Ratio:		f/10
Maximum Useful Magnification:		240x
Resolving Power (arc seconds):		1.14
Optical Coatings:		Multicoated
Optical Tube Dimensions:		4.0 x 40.0" (10.2 x 101.6 cm) WxL
Mount Type:		German-type equatorial
Eyepiece Barrel Diameter:		1.25"
Finderscope:		6x30mm
Tripod:		Adjustable aluminun
Motor:		Optional
Weight:		36.00 lb (16.33 kg)

Features of Celestron C4-R Advanced Refracting Telescope #21016:

• Glass, coated optics
• German equatorial mount
• Slow-motion controls with setting circles

Package Contents:

• Celestron C4-R Advanced Refracting Telescope #21016
• 1-1/4" 20mm Eyepiece (50x)
• 6x30 Finderscope and Mounting Bracket
• CG-4 Equatorial Mount and Tripod
• Rack and Pinion Focuser - 1-1/4"
• 90° Mirror Diagonal - 1-1/4"
• The Sky Level I CD-ROM
• Accessory Tray

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