Bresser MC 90/1250 Messier Maksutov OTA

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BRESSER-MESSIER901250

As an independent optical tube, the Bresser MC 90/1250 Messier Maksutov OTA provides a 90mm Maksutov-Cassegrain system with 1250mm focal length and compact Vixen-style mounting.

  • Standalone 90mm Maksutov optical tube
  • 1250mm focal length uses f/13.9 optics
  • 26mm image circle supports listed coverage
  • Internal mirror focuser provides optical adjustment
  • 26mm eyepiece and Vixen dovetail included
  • 1.4kg tube weight is specified
$167.00

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SKU: BRESSER-MESSIER901250 Category: Brand:

Description

Packing serious portability, the Bresser MC 90/1250 Messier Maksutov OTA is the most travel-friendly tube in Bresser’s Maksutov line at just 1.4kg — sealed against dust, no collimation needed, and small enough to fit in a carry-on alongside other gear. This version ships as a bare optical tube, no mount included.

An f/13.9 ratio like this one trades field width for planetary detail, and at this weight, almost any lightweight travel tripod or camera-style head can carry it via the Vixen-style dovetail plate. The internal primary mirror focusing system also means there’s nothing external to snag or misalign during transport, a real advantage for a tube that’s meant to travel often.

Key Features of Bresser MC 90/1250 Messier Maksutov OTA

A 90mm Maksutov-Cassegrain design resolves down to 1.28 arcseconds at f/13.9, reaching a limiting magnitude of 11.6 for sharp planetary contrast in a genuinely compact package.

  • At just 1.4kg, this is the lightest Maksutov tube in this catalog
  • Sealed catadioptric design needs zero collimation, ever
  • Internal primary mirror focusing system leaves no external moving parts to misalign
  • LED red dot finder locates bright targets fast without an optical eyepiece to align
  • Included 26mm Super Plossl eyepiece delivers 48x magnification right out of the box
  • Magnification range from 13x to 180x reaches genuine planetary detail
  • Carry-on-friendly size suits an observer who travels with their telescope often

What Sets the MC-90/1250 OTA Apart

Against the larger 100mm, 127mm, and 152mm Maksutovs in this catalog, this 90mm tube trades some resolving power for genuine travel portability — the lightest option if packing space and weight matter more than maximum aperture.

Applications & Use Cases

Built as an ultra-compact travel optical tube, this telescope suits clean planetary tracking, high-contrast lunar inspection, and space-saving quick visual checks for a frequent traveler.

  • Travelers wanting the lightest possible Maksutov in this catalog
  • Observers who already own a lightweight compatible mount
  • Anyone prioritizing pack size over maximum aperture

Bresser Warranty & Support

The MC-90/1250 OTA carries a 2-Year Factory Warranty covering manufacturing defects, handled directly through Bresser’s support channel.

Bresser MC 90/1250 Messier Maksutov OTA Specs

BrandBresser
Full Model CodeBresser Messier MC-90/1250 OTA
Country of OriginGermany
Optical DesignMaksutov-Cassegrain
Aperture90 mm (3.54 inches)
Focal Length1250 mm
Focal Ratiof/13.9
Optical CoatingsMulti-Coated Optics
Secondary Mirror Obstruction29 mm
Secondary Mirror Obstruction by Area10.4%
Backfocus Distance90 mm
Image Circle Diameter26 mm
Resolving Power1.28 Arcseconds
Limiting Visual Magnitude11.6
Highest Useful Magnification180x
Lowest Useful Magnification13x
Optical Tube MaterialAluminum
Focuser Style & MechanismInternal Primary Mirror Moving Focuser System
Mirror Lock MechanismNo
Optical Tube Dimensions100 mm x 280 mm
Optical Tube Weight1.4 kg (3.09 lbs)
Mount Attachment TypeUniversal Vixen-Style Dovetail Bar with Stainless Steel Rail Protection
Finder Scope SpecificationLED Red Dot Finder
Included Accessories26mm Super Plossl Eyepiece (48x), 1.25-inch Zenith Mirror (90-degree), Vixen-Style Dovetail Plate
Power Requirements3V CR2032 Lithium battery for Red Dot Finder
Standard Warranty2-Year Factory Warranty
ApplicationUltra-compact standalone travel optical tube optimized for clean planetary tracking, high-contrast moon inspections, and space-saving quick visual verification setups.

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