Omegon Advanced X N 254/1250 Dobson

10-inch light output: deep-sky gets serious!

The Omegon Advanced X 254/1250 is the step at which deep-sky truly begins. The 10-inch mirror collects about 1300 times more light than the naked eye: globular clusters break apart into stars, and spiral structure in bright galaxies comes within reach. A Dobsonian consists of two parts: tube and rockerbox. Set up, point, observe. No alignment, no electronics, maximum mirror for your money.

10-inch optics with fan

With the 25mm Plössl eyepiece, you get a 50x magnification with a wide field of view. The theoretical maximum is above 500x; in practice, the atmosphere limits it to around 300x to 350x. The f/4.9 optics require precise collimation; the built-in fan quickly brings the mirror up to temperature.

Smooth turning, fine focusing

The Teflon bearings with tension springs rotate smoothly in any direction, right up to the zenith. The parabolic primary mirror with 94% enhanced coating extracts merkbar more light from the same aperture than standard coatings. The 2-inch Crayford tube accommodates heavy wide-angle eyepieces, which this aperture requires.

Included

• Newtonian optics 254/1250 with parabolic primary mirror
• Built-in mirror fan
• Dobson rocker box with accessory tray
• 2 inch Crayford focuser with 1.25 inch adapter
• 25 mm Plössl eyepiece
• 8x50 finder scope

Featured accessories

The Omegon laser collimator (44.90 euros) is indispensable at f/4.9. An Omegon UWA 6 mm eyepiece (208x, 59 euros) provides high-detail magnification, and the Omegon Pro UHC 2-inch (89 euros) brings nebulae into sharp focus. An Omegon 13% 2-inch lunar filter (34.90 euros) reduces the glare from the very bright Moon. For transport, the Newton 250/1250 carrying case (99 euros).

For whom yes, for whom no

Suitable for those serious about deep-sky observation and willing to handle a 12 kg tube. Not for those who have doubts about size; the 203/1200 is more manageable and remains our beginner's choice. Compare on the Dobson page via Buying guide. Meer Omegon stands on the merk page.

Specifications