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Advanced Coma-Free OTA. Objective lens diameter: 305mm. Focal length: 2438mm

Catadioptric
Optical design
304
Aperture – the diameter of the light-collecting lens (refractors and catadioptric) or mirror (reflectors) that the telescope uses to collect light
2438
Focal length – the distance from the primary lens or mirror to the point at which the light is focused
Availability

Product ID 71722
Brand Meade Instruments Corp.
Warranty 2 years
EAN 0643824209275
Package size (LxWxH) 60x59x98 cm
Shipping Weight 19.98 kg
Description

Meade 12" f/8 ACF Optical Tube Assembly with the Losmandy-style dovetail. The bare essentials for an unbeatable price. We're proud to offer the f/8 OTA without the accessories for an ultra-low cost.

Building on Meade’s award-winning Advanced Coma-Free (ACF) optics, the 12" OTA employs a fast f/8 optical system with high-contrast baffling that insures crisp, pinpoint imaging to the very edge of the field. Features an internal zero image shift Crayford-style focusing system with a two-speed 7:1 reduction control that provides smooth, precise focusing at any magnification. Also features Meade's Ultra-High Transmission Coatings (UHTC) for maximum brightness and contrast, an oversized low-expansion primary mirror for extra aperture and to prevent thermal expansion of the mirror, and diffraction-limited optics.

Includes precision machined Losmandy-style dovetail rail mated to the tube with wide-stance radius blocks for rock-steady mounting, and front and rear dust covers. Focal length is 2438mm. OTA weight is 18.5kg.

Features:

  • 12" f/8 Advanced Coma Free optics – 2438mm focal length
  • Meade Ultra-High Transmission Coatings (UHTC)
  • Oversized low-expansion borosilicate primary mirror
  • Losmandy-style mounting rail
Specifications
Product ID 71722
Brand Meade Instruments Corp.
Warranty 2 years
EAN 0643824209275
Package size (LxWxH) 60x59x98 cm
Shipping Weight 19.98 kg
Optical design catadioptric
Optical scheme coma-free Schmidt–Cassegrain
Optics material borosililate glass with a low coefficient of thermal expansion
Optics coating UHTC
Objective lens diameter (aperture), mm 304
Focal length, mm 2438
Lowest practical power, x 51
Highest practical power, x 750
Aperture ratio f/8
Resolution threshold, arcseconds 0.38
Limiting stellar magnitude 14.8
Focuser internal, Crayford, backlash-free, dual speed (7:1)
Optical tube mounting mode dovetail plate (Losmandy standard)
Dovetail mount
Optical tube weight, kg 25.5
User level professionals
Observed object planets of the Solar System and deep-sky objects
Video