![]() We noted that views were sharp across a good proportion, with only slight trailing off in clarity around the field of view's edge. Putting the 6x30 finderscope to the test, we noted the clear and sharp views when we used it to guide us to the very bright -1.46-magnitude star Sirius (opens in new tab) in Canis Major (the Great Dog). In fact, the chromatic aberration is so small that we quickly forgot about this minor problem in the telescope’s optical system. For the cost of the telescope, we did expect to see this through the optical system of the Omni XLT 120 but we were delighted to see that it wasn't as severe as we had feared. Sadly, we did notice a degree of false color - or chromatic aberration - which gave bright objects a blue-purple coloration. The mount’s well-made stainless steel tubular tripod legs are exquisite, providing excellent support to the telescope and a good, solid base when combined with the counterbalance: the extra weighting is useful for those wishing to try their hand at basic astrophotography. The Omni XLT 120 drinks plenty of light, so we recommend investing in a moon filter for good contrast.īright crater Aristarchus was a stunning sight, as were the craters Kepler, Copernicus and Tycho, whose rays - made when material was thrown up during their progenitor impacts - could easily be detected by the refractor.Īs we slewed across the moon’s surface, we noted the ease with which the German equatorial mount allowed the telescope tube to move. Lunar rilles and mountains were also breathtaking. The telescope’s lenses are of superb quality, the StarBright XLT coating ensured bright and crystal clear views as we toured craters and mare. Slotting the supplied 25 mm eyepiece - which provides a magnification of 40x - into the 1.25-inch star diagonal, we were soon studying the lunar surface. With its aperture and focal ratio, this telescope is more suited to views of the solar system and moon (opens in new tab), however, it offers good views of a selection of deep-sky targets. The XLT 120 is a fine example of a small to medium-sized refractor and this became evident when we turned it to a selection of objects in a clear March night sky. Optical halo visible around bright objects.Best suited to solar system and lunar views.Omni XLT 120: First light and functionality The multi-coated 25 mm eyepiece has very good eye relief and we are delighted to see that it is of excellent quality and build - just like the telescope it slots into. ![]() The skywatcher won't outgrow it for some time. But being versatile and having a useful maximum magnification of over 241x, the refractor will serve as a good instrument for years to come. Unfortunately, the Omni XLT 120 doesn’t come with a wide range of accessories apart from a star diagonal, finderscope and 25 mm eyepiece. (19.50 kilograms), making it less than portable for those looking to travel beyond their backyard - if you're a skywatcher who likes to chase the darkest of skies, then we recommend either searching for a more portable option or having a vehicle to hand for transportation. The weight of the Omni XLT 120 is 43 lbs. We recommend replacing it with a Crayford focuser for optimum performance and fine-tuning your views. While it is fashioned from high-quality metal and performs well, these focusers have a tendency to slip when holding heavy eyepieces and supporting cameras. One minor niggle is the rack-and-pinion focuser. No residue of oil or glue is evident anywhere on the components. The overall build is stable with no sign of shaking or toppling over and, peering into the objective lens, the glass is beautifully coated. Since you don’t need tools or fiddly screws and bolts to set up the telescope, it takes a mere five to ten minutes to put the Omni XLT 120 together. It's a professional mount that requires a good understanding of how to use setting circles as well as right ascension and declination coordinates. (1.81 kilograms) - are also included along with slow-motion controls for stability and accurate night-sky navigation.Ī word of warning: the German equatorial mount is not suitable for beginners without some experience of using telescopes.
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