Explore Scientific Bresser Messier 102mm Short Refractor

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Explore Scientific Bresser Messier 102mm Short Refractor
$299.99
Item # ES-BR-02100
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  • Become closely familiar with Earth's celestial neighborhood with the Explore Scientific Bresser Messier 102mm Short Refractor or travel many light years to observe far away galaxies, nebulae, or star clusters.
  • Optics have been fully anti-reflection coated for enhanced sharpness and contrast that produces vivid images against a darkened sky background.
  • The Explore Scientific Bresser Messier 102mm Short Refractor comes with a 2" rack & pinion focuser with millimeter scale to provide consistent focusing efficiency.
  • Package includes a 2" diagonal, 25mm 70º eyepiece with 1.25" adapter, 8x50 LED-illuminated finderscope, mounting rings with carry handle, and Vixen-style dovetail rail.
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Explore Scientific Bresser Messier 102mm Short Refractor Telescope


Get to know Earth's celestial neighbors with this classic Bresser 4" achromatic refractor! Explore Saturn's famous rings or visit Jupiter, the behemoth of our solar system. You could also learn the moon's topography like the back of your hand. This 102mm Short Refractor will enable you to survey the moon's mountain peaks, valleys, craters, and ancient river beds all in a single observing session. When you get tired of viewing our solar system, you can use the Bresser 4" refractor to observe galaxies, nebulae, and star clusters that are many light years away. All of these fascinating objects are within the Bresser 102mm Short Refractor's reach.

A two-element, air-spaced crown & flint glass object is employed by the Bresser Messier 102mm Short Refractor as a light accumulation source. The optics have been fully anti-reflection coated for enhanced sharpness and contrast that produces vivid images against a darkened sky background like jewels on a black velvet cloth. When this scope is used during the daytime hours for bird-watching or other nature observations, the colors will appear bright and resplendent. To add even more contrast, this optical tube comes with a long dew shield installed. This will help prevent the lenses from becoming saturated when observing at night.

This telescope package includes a 2" rack & pinion focuser with millimeter scale to provide consistent focusing efficiency. It is constructed with brass compression rings to keep accessory barrels from becoming marred by a stray set-screw. Includes a 2" Bresser diagonal as standard plus a 25mm 70º 2" eyepiece! A 1.25" eyepiece adapter is also included with this focuser for those who want to add 1.25" eyepieces or other accessories.

Mounting your Messier 102mm refractor is a simple task thanks to a one-piece tube ring assembly that cradles the optical tube. The top of the tube ring features a built-in carrying handle that's been designed to accept a DSLR camera for piggyback astrophotography while the bottom features a stainless steel dovetail rail for attaching to Vixen-style mounts.

Users will appreciate all of the additional accessories that come standard with the Bresser Messier 102mm Short Refractor. To locate objects more efficiently, an 8x50 LED illuminated finderscope and bracket are included. The bracket can be connected and removed from the rear of the optical tube without difficulty for more convenient telescope storage. A planisphere, moon map, and Stellarium PC Software complete the package.

Explore Scientific Bresser Messier 102mm Short Refractor Specifications...


  • Focal Length: 1000mm
  • Focal Ratio: f/9.8
  • Eyepiece: 25mm Wide Angle - 2"
  • Focuser: 2" Rack & Pinion
  • Finderscope: 8x50 Illuminated
  • Highest Magnification: 200x
  • Optical Tube Diameter: 104mm
  • Optical Tube Length: 1000mm


Explore Scientific Product Number: BR-02100
Additional Information

Additional Information

SKU ES-BR-02100
Manufacturer Explore Scientific
Telescope Series Explore Bresser Messier
Optical Design Refractor - Achromatic
Mount Type None - Optical Tube Only
Warranty Lifetime Warranty
Telescope Aperture 4" (102mm)
Telescope Focal Length 1000mm
Telescope Focal Ratio f/9.8
Highest Useful Magnification 200x
Optical Coatings Fully Coated
Tube Color or Finish Gloss White
Optical Tube Outer Diameter 4.1" (104mm)
Length of Optical Tube 39.37" (1000mm)
Optical Tube Weight 8.6 lbs.
Dew Shield Included? Yes
Finder Included 8 x 50 Optical Finder
Diagonal Included? Yes - 2" Star Diagonal
Eyepiece(s) Included 25mm Wide Angle
Focuser Size 2"
Focuser Style Rack & Pinion
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Included Items

Included Items

  • Explore Scientific Bresser Messier 102mm Short Refractor
  • 6x30 Straight Through Finderscope
  • 2" Rack & Pinion Focuser
  • 1.25" Diagonal
  • 25mm Super Plossl Eyepiece
  • Mounting Rings w/ Handle & Integrated Piggyback Camera Holder
  • Vixen-style Dovetail
Questions & Answers

Product Questions

My grandson is 7 years old and is very interested in stars and planets. Is this a good telescope to get him?
Explorer scientific bresser messier 102mm short refractor
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