SVBONY MK105 105mm Maksutov-Cassegrain Telescope OTA

Maksutov-Cassegrain Optics: A 1365mm Focal Length for High-Power Views

The MK105's design prioritizes high-magnification clarity. Its 1365mm focal length and slow f/13 focal ratio are ideal for pushing magnification on bright targets like Jupiter's cloud bands, Saturn's rings, and lunar craters. The Maksutov corrector lens and multi-coated primary mirror work together to produce sharp, high-contrast images with minimal chromatic aberration, a common issue in refractors at this price point.

This long focal length makes it easy to achieve high power with common Plössl eyepieces. While its narrow field of view is a trade-off for deep-sky objects, its optical design excels at splitting close double stars and resolving fine detail on solar system targets down to its 12.1 limiting magnitude.

Compact Portability: Just 4.83 lbs and 377mm Long

At only 4.83 lbs (2193g) and 377mm in length, the MK105 is a true "grab-and-go" instrument. This compact form factor is a direct benefit of the folded light path of the Maksutov-Cassegrain design, achieving a long focal length in a tube less than half the size of an equivalent refractor. The internal focusing mechanism further reduces its footprint by eliminating the need for an external drawtube.

The metal optical tube ensures the internal components remain collimated during transport, making it a reliable choice for trips to dark-sky sites or for quick backyard sessions. It mounts securely via its attached 160mm Vixen-style dovetail bar, compatible with a wide range of popular astronomical mounts.

Dual Finder Shoe Design: Mount 2 Accessories without Drilling

A standout feature of the MK105 is its inclusion of two separate finder mounting bases. This allows you to mount both a zero-magnification red-dot finder for initial aiming and a magnified finderscope or small guidescope simultaneously. This dual-mount capability provides flexibility for both visual observers and aspiring imagers without requiring any modification to the optical tube.

For astrophotography, the rear of the telescope features a standard M42x0.75 T-thread. This allows for direct, secure attachment of a DSLR or dedicated astronomy camera with the appropriate T-ring, providing a solid connection for capturing high-resolution images of the Moon and planets.

Svbony MK105 vs. an 80mm Refractor: Focal Length and Portability

When choosing a portable telescope, a common comparison is between a Maksutov like the MK105 and a short-tube 80mm refractor.

• 80mm Refractor Advantage: A typical 80mm f/7 refractor offers a much wider field of view and a faster focal ratio. This makes it better suited for observing large deep-sky objects like the Andromeda Galaxy (M31) or the Pleiades (M45).
• Svbony MK105 Advantage: The MK105's 1365mm focal length is more than double that of a typical 80mm refractor's 560mm. This provides significantly higher magnification for the same eyepiece, making it far superior for planetary and lunar detail. The MK105 is also dramatically more compact and often lighter than a refractor with a similar aperture.