BRESSER Messier 4" f/5.9 Achro Refractor Telescope with Exos-2 GoTo Mount and Tripod

BRESSER Messier 4" f/5.9 Achro Refractor Telescope with Exos-2 GoTo Mount and Tripod

BRESSER Messier 4" f/5.9 Achro Refractor Telescope with Exos-2 GoTo Mount and Tripod

B&H # BRAR102EXOGT MFR # BR-AR102EXOS2GT
Discontinued

Product Highlights

  • 4" Aperture Achromatic Refractor
  • 600mm Focal Length, f/5.9 Focal Ratio
  • 2" Rack-and-Pinion Focuser
  • 26mm Eyepiece with 1.25" Adapter
  • 90° Star Diagonal & 6x30 Finderscope
  • Exos-2 GoTo Motorized Equatorial Mount
  • 100,000-Object StarTracker GoTo Computer
  • Dual Axis DC Servo Motors with Encoders
  • Illuminated Polar Finder Scope
  • Adjustable Tripod, 2" Leg-Diameter
Show moreShow less
  • 1Description

Bresser provides beginner and advanced astronomers a complete observation kit, with Go-To capabilities, with this version of their Messier 4" f/5.9 Achro Refractor Telescope. It comes with the apochromatic refractor optical tube, the motorized and computer controlled Exos-2 Go To mount with a 100,000+ database guidance system, dual-axis motors, a sturdy tripod, an illuminated pole finder scope, and an array of optical accessories.. This Messier optical tube assembly (OTA) features an achromatic lens system to virtually eliminate chromatic and spherical aberrations which translates to 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/5.9 focal ratio make this telescope ideally suited for astrophotography and astroimaging. This OTA is ideally suited for imaging or viewing near and deep-sky objects such as the Moon, planets, galaxies, and nebulae.

This iteration of the Messier is equipped with the Exos-2 Go To motorized equatorial mount and helps to take the guess-work out of astronomy and gets you observing faster by combining an EQ mount with a 100,000+ database computer guidance system and dual-axis motors. To make set-up and alignment faster and easier, Bresser includes an illuminated polar finder scope for use in the Northern Hemisphere. The included tripod is built with large 2" diameter stainless steel legs and tight tolerances to reduce vibration for clearer viewing. A center stabilizer bar pulls the accessory tray up to lock the legs in place adding further rigidity and vibration reduction. It is adjustable from 29 to 49" to accommodate a wide range of users. The mounting cradle-ring assembly 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, 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 SkyTracker kit includes the hand controller unit, and right ascension and declination motors. Its hand controller has more than 100,000 objects with the ability for users to input custom coordinates and favorites. With a slew speed of 2°/second and nine tracking speeds the SkyTracker can accurately keep near and deep sky objects such as the Moon, planets, galaxies and nebulae centered in your eyepiece for long exposure imaging and astrophotography or prolonged observation sessions.

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: 102mm
  • Focal ratio: f/5.9
  • Focal length: 600mm
  • Refractor-style optical design
  • Achromatic lenses eliminate chromatic and spherical aberrations for true color rendition and without distortion across the entire field of view, especially at the edges
  • 6x30 non-illuminated straight-view finderscope
StarTracker Go-To System
  • Dual-axis DC servo motors with digital encoders
  • Database includes over 100,000 astronomical objects
  • Add user-defined objects and favorites
  • Controls dual axis motors for precision tracking
  • ST-4 autoguiding port
  • Slewing speed: 2° per second
  • Nine tracking rates for near and deep-sky objects
  • 2.5x1.4" (6.3x3.6cm) LCD screen, eight-rows with 21 digits per row
Mount
  • Cast aluminum with white powder-coat
  • Ball bearings on both axes reduce vibrations and minimize backlash
  • Integrated bubble level on mount base
  • 9.9lb (4.5kg) counterweight with 20mm diameter bar
  • Latitude, Right Ascension, and Declination scales
  • Right ascension axis release lever allows for fast adjustment
  • Illuminated polar finder scope to increase alignment precision
Optical Accessories
  • 2" rack-and pinion focuser
  • 26mm super Plossl eyepiece, yields 23x power
  • 2"-to-1.25" eyepiece adapter with integrated T2 threads
  • 90° star diagonal
Tripod
  • Three-section adjustable-height
  • 29lb payload capacity
  • 2.0" stainless steel legs
  • 29 to 49" height range
  • Center stabilizer bar locks legs in place to reduce vibrations
  • Accessory tray with holes for 1.25" eyepieces
  • Spiked feet for use in ground and grass for increased stability, especially on rough or uneven area
UPC: 812257016440
In the Box
BRESSER Messier 4" f/5.9 Achro Refractor Telescope with Exos-2 GoTo Mount and Tripod
  • 6x30 Finderscope
  • 26mm Eyepiece
  • 1.25" Star Diagonal
  • 2" to 1.25" Focuser Adapter
  • Mounting Rings with Dovetail Plate
  • Exos-2GT Computerized German Equatorial Mount with Tripod
  • Limited Five-Year Warranty
  • Table of Contents
    • 1Description
    Optical Design Achromatic refractor
    Aperture 4" / 10.2 cm
    Focal Length 600mm
    Focal Ratio f/5.9
    Eyepiece Barrel Diameter 2", or 1.25" with adapter
    Diagonal 90° star
    Finderscope 6 x 30, straight-view
    GO-TO Capability Yes, 100,000+ object SkyTracker database
    Tripod Stainless steel adjustable height
    2" / 5.1 cm diameter legs
    Mount Type Motorized German equatorial
    Power Source Rechargeable battery pack
    Optical Tube Dimensions 24.2 x 4.1" / 61.5 x 10.4 cm
    Weight 8.9 lb / 3.9 kg

    BRESSER Messier 4" f/5.9 Achro Refractor Telescope with Exos-2 GoTo Mount and Tripod Review

    Be the first to review this item
    See any errors on this page? Let us know.