A database, two motors, and an alignment that has to be honest · review
A 90/500 wide-field refractor on the EXOS II computerised GoTo mount, with the maker’s recommended maximum magnification published as 180x.
The bottom line A modest wide-field tube on more mount than it needs, with a magnification figure that is honest for once.
Ninety millimetres, five hundred millimetres, f/5.5. Bresser prints all three rather than leaving the division to the reader — and then prints a recommended maximum magnification of 180x, which is roughly twice the aperture in millimetres and therefore a genuinely sensible number.
An EXOS II is built for tubes considerably heavier than a 90 mm refractor. A mount working well below its capacity damps quickly and tracks smoothly, and it leaves room for a camera, a guide scope or a heavier tube later.
At f/5.5 and 500 mm, the low-power view is wide. Large open clusters, the Milky Way, comets and wide double stars all suit it. The same geometry makes it a reasonable imaging platform for wide targets.
Supplied eyepieces are mentioned only as “accessories”. No payload figure, no weight, no tripod description. Five short lines is the entire specification.
German, French, Italian and Spanish Amazon stores sat at about 636 € on the day of the survey.
British Amazon store lists it in local currency, which the euro range above sets aside.
American Amazon store gave no result whatever, so the buy button there opens a search rather than an empty page.
Figures as Keepa reported them on the day this page was last updated. Stock and pricing shift without warning.
Prices quoted in this text were read on 17 September 2026. The live price is at the top of the page.
| Pointing accuracy | 180x, as the maker publishes it |
|---|---|
| Alignment routine | Not published by the maker. |
| Database and lists | Not published by the maker. |
| Controller and app support | EXOS II with GoTo |
| Power draw and socket | Not published by the maker. |
| Payload rating | Absent from this listing |
| Amazon reference | B06XCW7SRB (same reference on 5 Amazon marketplaces) |
| EAN | 4007922049892 |
Because it is close to twice the aperture in millimetres, which is the conventional optical ceiling. Most listings on this shelf quote a figure several times higher. A maker that publishes a sensible number is telling you something about the rest of its claims.
Tracking, once aligned, and capacity. The EXOS II under a 90 mm tube is carrying far less than it could, which is exactly the situation in which a mount behaves well.
114 mm mirror · 900 mm focal length · alt-azimuth mount
A 114/900 Newtonian on a simple alt-azimuth mount, supplied with three eyepieces, a 6x30 finder and a 1.5x erecting lens, recommended by the maker from age eight.
Best for: A family telescope where nobody wants to learn polar alignment
≈ £150 / €142
10x magnification · 50 mm objectives · 360 g
A waterproof 10x50 with BAK4 prisms, fully multi-coated optics and 25 mm eyecups, published at 360 g.
Best for: Long hand-held sessions where weight is the deciding factor
≈ €50
76 mm · 700 mm focal length · AZ-1 mount
A compact 76/700 telescope on an AZ-1 alt-azimuth mount, supplied with three eyepieces, a 2x Barlow and a red dot finder.
Best for: A light, simple second telescope or a first one for a teenager
≈ €139
