Sevunscope Advanced 200/1200

The rigid, scalable modular telescope designed to go further

The Sevunscope Advanced 200 f/6 is designed for astronomers seeking an instrument oriented toward longer focal lengths, offering excellent comfort at high magnifications while maintaining genuine versatility for deep-sky observation. This configuration fully aligns with the Advanced philosophy, leveraging the telescopic platform to reach extended focal lengths without the bulk of a traditional tube.

The idea behind the Advanced platform

Instead of enclosing the optics in a sheet-metal tube, we developed an open platform made of aeronautical-grade aluminum incorporating a telescopic mechanism. This architecture makes it possible to extend the platform to accommodate longer focal lengths, while ensuring a high level of mechanical rigidity. The platform provides the structure, while the modules carry the optics.

What this changes in the field

Controlled transport : The telescope remains fully dismountable and transportable, while accommodating a more substantial structure linked to the telescopic mechanism. This deliberate compromise makes it possible to access long focal lengths without the constraints of traditional tubes.

Thermal equilibrium : The open structure allows the mirrors to reach thermal equilibrium naturally and quickly, limiting internal turbulence and promoting stable images at high magnifications.

Durable design : The use of aluminum combined with high-performance Nylon components (SLS 3D printing) guarantees a rigid and long-lasting instrument. Each unit is assembled and inspected by hand in our workshop. The mechanical structure is guaranteed for life.

A reliable optical system (GSO)

The 200 f/6 is a configuration recognized for its balance between resolution, contrast, and ease of use. Its 1200 mm focal length facilitates access to high magnifications for planetary and lunar observation while maintaining excellent readability on deep-sky objects. Equipped with a 46 mm secondary mirror and a 2" rack-and-pinion focuser (with 1.25" adapter), it provides moderate obstruction and very good field quality.

An investment for your lifetime as an astronomer

The key strength of the Sevun system lies in its modularity. As your practice evolves, so does your instrument. With the Advanced platform, you retain your mechanical base and can evolve your optical configuration toward other focal lengths or apertures, without calling your initial investment into question.

Technical Specifications

Magnification capabilities

Useful minimum : 28×
Resolving : 200×
Recommended maximum : 400×

Package contents

The instrument is delivered complete, ready for use on your mount :

Advanced platform : Aluminum structure with integrated telescopic mechanism (6.8 kg).
200 / 1200 optical kit : Primary and secondary modules.
Light protection : Shroud and six pultruded carbon support rods.
Focusing system : 2" rack-and-pinion focuser (with 1.25" reducer).
Included accessories : 6×30 illuminated finder, collimation laser.
UWA 68° eyepiece pair : 9 mm and 20 mm for full immersion from the first night.

System scalability

The Advanced platform is designed to accompany your progression. The chassis remains the same; only the optics evolve. For reference, here is the total weight (ready to use) if you later choose to evolve in aperture :

150 mm configuration : 10.5 kg
200 mm configuration : 12.1 kg
250 mm configuration : 15.1 kg