Bresser Messier NT203s/800 OTA

Newtonian telescope. Primary mirror diameter: 203mm. Focal length: 800mm

Reflector

Optical design

203

Aperture – the diameter of the light-collecting lens (refractors and catadioptric) or mirror (reflectors) that the telescope uses to collect light

800

Focal length – the distance from the primary lens or mirror to the point at which the light is focused

Availability

Product ID	72885
Brand	Bresser GmbH, Germany
Warranty	2
EAN	4007922152035
Package size (LxWxH)	100x41x38
Shipping Weight	15

Description

Bresser Messier NT203s/800 OTA features a fast parabolic main mirror and a Hexafoc focuser. It is an excellent tool for astrophotography. This is an aluminum tube with a classical design. The large primary mirror of 203 mm diameter allows for delivering deeper images and a faster optical system. The 85 mm secondary mirror prevents vignetting. The excellent 2.5" Hexafoc focuser makes focusing easy due to its large diameter and smoothness and shifting-free operation. You will love astrophotography with this optical tube. It is easy to take pictures due to the tube rings with a 44 mm universal standard dovetail and a high-end finderscope with a crosshair and laser-engraved scale.

Features:

Aperture: 203 mm
Focal length: 800 mm
Focal ratio: f/3.9
Backfocus fully inward focused: 60 mm
85 mm secondary mirror for optimal illumination
Diffraction limited optics with parabolic main mirror
Large knobs for primary and secondary mirror adjustment

The kit includes:

Aluminum tube with optics
Tube rings with a handle and camera mounting feature
8x50 finderscope with a reticle
26 mm Super Plössl

Specifications

Product ID	72885
Brand	Bresser GmbH, Germany
Warranty	2
EAN	4007922152035
Package size (LxWxH)	100x41x38
Shipping Weight	15
Optical design	reflector
Optical scheme	Newtonian
Primary mirror diameter (aperture), mm	203
Secondary mirror diameter, mm	85
Focal length, mm	800
Magnification, x	20 — 400
Aperture ratio	f/3.9
Eyepieces	26mm
Finderscope	optical, 8x50