BRESSER AR-127S Messier 5" f/5 Achro Refractor Telescope - OTA Only

BRESSER AR-127S Messier 5" f/5 Achro Refractor Telescope - OTA Only

BRESSER AR-127S Messier 5" f/5 Achro Refractor Telescope - OTA Only

B&H # BRAR127635 MFR # BR-AR127635
No Longer Available

Product Highlights

  • 5" Aperture Achromatic Refractor
  • 635mm Focal Length, f/5 Focal Ratio
  • 2" Rack-and-Pinion Focuser
  • 26mm Eyepiece with 1.25" Adapter
  • 90° Star Diagonal & 8x50 Finderscope
  • Cradle Ring Mount with Handle
  • Vixen-Style Dovetail Mounting Plate
  • 1/4"-20 Piggyback Camera Mount
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BRESSER AR-127S overview

  • 1Description

For users who have a platform and want to add to their options of OTAs, Bresser offers the AR-127S Messier 5" f/5 Achro Refractor Telescope here without a mount or tripod. This Messier optical tube assembly (OTA) can be used for imaging or viewing near and deep-sky objects such as the Moon and planets, galaxies and nebulae, and anything in between. It features an achromatic lens system to virtually eliminate chromatic and spherical aberrations in order to create an immersive, distortion-free viewing experience with true color rendition across the entire field of view - especially at the edges. The combination of aperture, aberration-free optics and a fast f/5 focal ratio make this telescope ideally suited for astrophotography and astroimaging.

While there is no mount included, a mounting cradle-ring assembly is provided. It clamps over the optical tube and lets the user adjust the orientation and position of the scope relative to the mount to optimize viewing comfort and balancing, while avoiding interference with other equipment. A stainless steel Vixen-style dovetail plate makes it compatible with any alt-az or equatorial mount with a Vixen-style saddle, and a 1/4"-20 stud on the top of the cradle ring assembly enables a camera to be piggybacked onto the scope for wide-field photography.

The scope is equipped with a 2" rack-and-pinion focuser for over-sized eyepieces and accessories, and comes with a 1.25" reducer adapter and a 1.25" 26mm super Plossl eyepiece that yields 23x power on the OTA. The adapter also has integrated T2 mounting threads to enable the use of a user-supplied DSLR-specific T2 ring for astrophotography through the scope.

Optical Performance
  • Aperture: 5" (127mm)
  • Focal ratio: f/5
  • Focal length: 635mm
  • Refractor-style optical design
  • Anti-reflection multicoated optics
  • Achromatic lenses eliminate chromatic and spherical aberrations for true color rendition and without distortion across the entire field of view, especially at the edges
  • 8x50 non-illuminated straight-view finderscope
  • Requires user-supplied mount and tripod
  • Vixen-style dovetail mounting plate
  • Integrated 1/4"-20 piggyback camera mounting screw
  • Mounting ring cradle enables OTA orientation adjustment relative to mount
  • Carrying handle for safe set-up and break-down
Optical Accessories
  • 2" rack-and pinion focuser
  • 26mm super Plossl eyepiece, yields 24x power
  • 2"-to-1.25" eyepiece adapter with integrated T2 threads
  • 90° star diagonal
In the Box
BRESSER AR-127S Messier 5" f/5 Achro Refractor Telescope - OTA Only
  • 26mm Eyepiece
  • 90° Star Diagonal
  • 2-to-1.25" Eyepiece Adapter
  • Planetarium Software CD-Rom
  • Rotating Star Map
  • Moon Map
  • Limited Ten-Year Warranty
  • Table of Contents
    • 1Description

    BRESSER AR-127S specs

    Optical Design Refractor
    Aperture 5.0" / 12.7 cm
    Focal Length 635
    Focal Ratio f/5
    Eyepiece Barrel Diameter 2", directly into focuser
    1.25" with included adapter
    Diagonal 90° star
    Finderscope 8x50
    Tripod None
    Mount Type Vixen-style dovetail plate
    Power Source N/A
    Optical Tube Dimensions Diameter: 5.2" / 13.3 cm
    Length: 38.0" / 96.5 cm
    Weight 17.0 lb / 7.7 kg

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