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Bresser AC 90/900 Telescope Messier OTA

 199,00

This is just the tube (OTA), without mounting and tripod. You can choose the appropriate mounting and the accessories that come with it below.

The Bresser AC 90/900 Messier OTA comes with achromatic optics, an SP 26 mm eyepiece, a 6×30 finder scope, a 90-degree star diagonal, an integrated dew shield, Vixen-style tube rings, solar filters, and a smartphone camera adapter.

Delivered within 1 to 2 weeks
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Bresser AC 90/900 Telescope Messier OTA
Bresser AC 90/900 Telescope Messier OTA
 199,00

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The classic f/10 refractor as a standalone tube, with solar filters!

The Bresser AC 90/900 Messier OTA is the classic all-around refractor for your own mount. The f/10 design keeps chromatic aberration well under control: the Moon, planets, and double stars appear calm and sharp. The included solar filters also allow for safe solar observation.

Bresser AC 90/900 optical tube with SP 26 mm Super Plössl eyepiece and 6×30 optical viewfinder
Bresser AC 90/900 close-up of focuser with 90° star diagonal

Classic f/10 achromatic

The 90 mm lens captures approximately 165 times more light than the naked eye. With the 26 mm eyepiece, you get 35x magnification; consider approximately 180x as the maximum. The integrated dew shield keeps the lens free from dew for longer. Use solar filters only if they are undamaged and never look at the sun without certified protection.

Which mount fits this?

The Bresser EXOS-1/EQ-4 mount with tripod (€379) carries this tube with ease; a sturdy azimuthal mount with a Vixen clamp also suffices visually. Via the Vixen-Style dovetail, the tube fits any mount with a standard Vixen clamp.

Included

  • Achromatic optics 90/900
  • SP 26mm eyepiece (1.25 inch)
  • 6×30 viewfinder
  • 90 degree star diagonal
  • Integrated lens hood
  • Vixen-Style Split Rings
  • Solar filters
  • Smartphone camera adapter

Featured accessories

The Bresser Plössl 10 mm eyepiece (90x, 29 euros) is the medium magnification. An Omegon Premium moon filter (19.90 euros) dims the moonlight. For transport, the Shield transport bag for refractors up to 100/900.

For whom yes, for whom no

Suitable for: anyone looking for a maintenance-free all-rounder for the Moon, planets, and Sun on an existing mount. Not suitable for: deep-sky photographers; the small aperture and f/10 are not intended for that. Compare to refractor page. Meer Bresser is on the brand page.

Specifications

Optical designAchromatic refractor (two-lens)
Opening90 mm
Focal length900 mm (f/10)
Focuser1.25 inches
ExecutionOptical Tube Assembly (OTA)
Supplied eyepieceSP 26 mm
Special featureIncluding sun filters and lens hood

Additional information

Weight3 kg
Dimensions104 × 27 × 27 cm
Weight

Lightweight (0 - 5 kg)

Observation goals

Moon and planets, Sun

Telescope series

Bresser Messier

Optics Focal length

600 - 1000 mm

Telescope Electronics

Tube only (OTA).

Optics Design

Achromat

Mounting Type

OTA (without mount)

Focal Ratio

f/10

Aperture

70 - 100 mm

Max. useful magnification

150x - 200x

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