{"product_id":"sky-watcher-bkmak180-otaw-180-2700mm-maksutov-cassegrain-large-aperture-compound-style-reflector-telescope-ota","title":"Sky-Watcher BKMAK180 OTAW 180\/2700MM Maksutov-Cassegrain Large Aperture Compound-Style Reflector Telescope OTA","description":"\u003cdiv\u003e\u003cspan\u003e\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e      \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSky-Watcher S11540 Overview\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e      With the largest aperture in the series, the Sky-Watcher 180mm f\/15 Maksutov-Cassegrain Telescope is a powerful astronomical tool that remains manageable and portable. The Maksutov design exchanges the conventional front corrector plate of a Schmidt with a convex meniscus lens, resulting in a smaller secondary mirror that limits obstruction and increases contrast, while eliminating the need for periodic collimation. This modified 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 making detailed solar, lunar, and planetary observations, while being able to resolve deep-sky objects like stars, clusters, galaxies, and nebulae.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e   The scope is outfitted with a large 2\" visual back. To get users started, Sky-Watcher includes a 28mm long eye relief eyepiece that produces 96x magnification and a 90° star diagonal for viewing with the optical tube assembly (OTA) pointed at or near the celestial zenith. The OTA is offered here without a mount or tripod for users who have a reliable support system 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 use with compatible 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e               Optical Performance\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e    \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e                      180mm aperture\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       f\/15 focal ratio\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       2700mm focal length\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       Front convex meniscus lens corrects spherical and chromatic aberrations as well as comas (off-axis aberrations) across the entire field of view\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       Smaller secondary mirror versus Schmidt-Cassegrains reduces obstructions and increases contrast\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       Fully multi-coated optics maximize light transmission to improve brightness, color rendition, sharpness, and contrast\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       Resolution: 0.64 arcsec\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       Internal primary mirror focus\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       2\"-diameter visual back accepts larger eyepieces and accessories\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e      \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e     \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e    \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e   \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e              Mounting\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e    \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e                      Requires mount and tripod for proper use\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       Vixen-style dovetail plate\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       Weight: 19 pounds including OTA, dovetail plate, finder, diagonal, and eyepiece\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e      \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e     \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e    \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e   \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e              Included Accessories\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e    \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e                      Eyepiece:      \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e             \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e      \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e             2\" barrel diameter\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       Accepts most 2\" astronomical filters\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       28mm eyepiece yields 96x power\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       Comfortable long eye relief\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e      \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e      Diagonal:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e             2\" snout and eyepiece holder\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       90° angle places head in a comfortable viewing position\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       Star configuration corrects image horizontally for terrestrial use\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e      \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e      Finderscope:\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e             Relatively low 8x magnification provides a wide field of view for easier alignment and faster star-hopping navigation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e       50mm aperture helps resolve dimmer objects that dot finders cannot\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e      \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e     \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e    \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e   \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e   \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e               \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/span\u003e\u003c\/div\u003e","brand":"mickcara","offers":[{"title":"000","offer_id":41341873520777,"sku":"01646-1","price":5222.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0365\/2131\/2393\/files\/aca732011f4ff70101986f079bdd8491.png?v=1691311659","url":"https:\/\/mickcara.com\/products\/sky-watcher-bkmak180-otaw-180-2700mm-maksutov-cassegrain-large-aperture-compound-style-reflector-telescope-ota","provider":"mickcara","version":"1.0","type":"link"}