SK102MMMCOTA

S11510

Sky-Watcher

Similar to their Schmidt cousins, this 102mm f/13 Maksutov-Cassegrain Telescope from Sky-Watcher exchanges the conventional front corrector plate with a convex meniscus lens, which results in a smaller secondary mirror limiting obstruction and increasing contrast, while eliminating the need for periodic collimation. The Maksutov optical path results in a slower focal ratio and narrower field of view versus a similar Schmidt, but the optical benefits, when coupled with the larger aperture and fully multi-coated optics, make this an ideal scope for solar, lunar, planetary, and deep-sky observation of bright objects like stars and clusters.The scope is outfitted with a 1.25" visual back and, to get users started, Sky-Watcher includes 10 and 25mm eyepieces that produce low and moderate magnifications and a 90 star diagonal for more comfortable viewing when the optical tube assembly (OTA) is pointed at or near the celestial zenith. The OTA is offered here without a mount or tripod for users who have a platform or want to use it as part of a dual-OTA setup for star parties or observation/imaging rigs. It is outfitted with a Vixen-style dovetail plate for easy attachment onto many mounts. This OTA's compact form factor belies its observation power and resolution and is ideally suited as a grab-and-go option for quick observation sessions or heading out to remote locations.Optical Performance 102mm aperturef/13 focal ratio1300mm focal lengthFront convex meniscus lens corrects spherical and chromatic aberrations and comas (off-axis aberrations) across the entire field of viewSmaller secondary mirror versus Schmidt-Cassegrains reduces obstructions and increases contrastFully multi-coated optics maximize light transmission to improve brightness, color rendition, sharpness, and contrastResolution: 1.01 arcsecInternal primary mirror focus1.25"-diameter visual back takes 1.25 eyepieces and accessories Mounting Requires user-supplied mount and tripodVixen-style dovetail plateWeight: 4.6 pounds including OTA, dovetail plate, finder, diagonal, and eyepieceIncluded Accessories Eyepieces:1.25" barrel diameterAccept most 1.25" astronomical filters25mm eyepiece yields 52x power10mm eyepiece produces 130x magnificationDiagonal:1.25" snout and eyepiece holder90 angle places head in a comfortable viewing positionStar configuration corrects image horizontally for terrestrial useFinderscope:Unmagnified view provides a wide field of view for easier alignment and faster star-hopping navigationRed center aiming dot won't obstruct objectsVariable intensity to preserve night-adjusted vision