{"title":"TS-Optics Field Flatteners, Reducers \u0026 Coma Correctors","description":"\u003cp\u003eTS-Optics field flatteners and reducers correct the curved field of refractors so stars stay sharp to the edge of the image. The 1.0x Flattener and Field Corrector comes in 2\" versions with T2 or M48 threads, keeping the native focal length.\u003c\/p\u003e\u003cp\u003eThe 0.79x Photoline Reducer Corrector shortens focal length for a wider, faster field, while the 0.5x 1.25\" focal reducer suits small-sensor cameras.\u003c\/p\u003e","products":[{"product_id":"ts-optics-0-67x-reducer-for-rc-telescopes-2","title":"TS-Optics 0.67x Reducer for RC Telescopes - 2\"","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cb itemprop=\"description\"\u003eThe 2\" CCD compressor reduces the focal length of telescopes with the factor 0.67x, thus allowing significantly shorter exposure times.\u003c\/b\u003e\u003c\/p\u003e\u003cp\u003e♦ The focal reducer is perfectly suitable for RC telescope. It also works good with Celestron EHD or Meade ACF telescopes or with refractors up to the focal ratio F\/9\u003cbr\u003e\u003cbr\u003e♦ The image field of DSLR cameras up to APS-C format is illuminated - full illumination up to 29 mm\u003cbr\u003e\u003cbr\u003e♦ Easy connection to the telescope via 2\" barrel\u003cbr\u003e\u003cbr\u003e♦ Optimal working distance from the M48x0.75 thread to the camera sensor is 85 mm - enough space for accessories like off-axis guider or filter wheel\u003cbr\u003e\u003cbr\u003e♦ 2\" filter thread at the telescope side\u003c\/p\u003e\u003ch2\u003eTS-Optics CCD telecompressor for Ritchey-Chrétien and other F\/18 to F\/8 telescopes\u003c\/h2\u003e\u003cp\u003e\u003cspan\u003eThe TS telecompressor CCD47 was developed for reducing the focal length of RC (Ritchey-Chrétien) telescopes. Practical tests have also shown an excellent suitability for all telescopes with flat field, like apochromats with built-in corrector lens, Celestron EHD or Meade ACF telescopes, thus the most flat-field telescopes. We especially recommend the compressor for the GSO \/ TS Optics \/ AstroTec Ritchey-Chrétien telescopes.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eThe features of the CCD47 telecompressor:\u003c\/h2\u003e\u003cp\u003e\u003cbr\u003e\u003cspan\u003e♦ Barrel size is 2\" - easy connection to all focusers with 2\" receptacle\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e♦ With thread for 2\" filters at the telescope side\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e♦ Camer aconnection via M48x0.75 thread\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e♦ Optimal working distance from the connection thread: 85 mm to the camera sensor. Between 70-90 mm, the results are very good.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e♦ Reduction by 0.67x - an RC with F\/8 changes to fast f\/5.3. A telescope with F\/10 still turns into F\/6.7. The exposure time will be more than halved!\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e♦ An illuminated image field of 29 mm allows using all camera sensors up to APS-C format.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003ch2\u003eAdapter recommendations:\u003c\/h2\u003e\u003cp\u003e\u003cspan\u003eWith the long working distance, adaptation of all common cameras, no matter whether CCD or DSLR, is possible without any problems. Some examples of applications:\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e♦ DSLR camera - adaption via M48: TSVF230 and then the matching adapter from M48 to the camera, like the SKM48-EOS for connecting a Canon EOS\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e♦ CCD cameras via T2 connection: two adapters are possible for reducing the M48 thread to T2:\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eTSFA2 - adapter to T2 with 38.2 mm length. This is used for bridging optical path.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eTSM48-T2 - a short adapter with only 3.5 mm length. This is applied if accessories like off-axis guider and filter wheels should be used.\u003c\/span\u003e\u003c\/p\u003e\u003ctable cellpadding=\"4\"\u003e\u003ctbody\u003e\n\u003ctr class=\"bgltblue\"\u003e\n\u003ctd class=\"pr9\"\u003e\n\u003cb\u003eBarrel size\u003c\/b\u003e:\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"stpage-bg\"\u003e\n\u003ctd class=\"pr9\"\u003e\n\u003cb\u003eFilter thread\u003c\/b\u003e:\u003c\/td\u003e\n\u003ctd\u003e2\" filter thread at the telescope side\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"bgltblue\"\u003e\n\u003ctd class=\"pr9\"\u003e\n\u003cb\u003eCamera connector\u003c\/b\u003e:\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 thread (male, 5 mm long)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"stpage-bg\"\u003e\n\u003ctd class=\"pr9\"\u003e\n\u003cb\u003eBody length\u003c\/b\u003e:\u003c\/td\u003e\n\u003ctd\u003e29.2 mm (w\/o male thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"bgltblue\"\u003e\n\u003ctd class=\"pr9\"\u003e\n\u003cb\u003eWorking distance\u003c\/b\u003e:\u003c\/td\u003e\n\u003ctd\u003eBetween 70-90 mm - optimal results are achieved at approx. 85 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"stpage-bg\"\u003e\n\u003ctd class=\"pr9\"\u003e\n\u003cb\u003eFactor\u003c\/b\u003e:\u003c\/td\u003e\n\u003ctd\u003e0.67x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"bgltblue\"\u003e\n\u003ctd class=\"pr9\"\u003e\n\u003cb\u003eClear aperture\u003c\/b\u003e:\u003c\/td\u003e\n\u003ctd\u003e44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"stpage-bg\"\u003e\n\u003ctd class=\"pr9\"\u003e\n\u003cb\u003eCoating\u003c\/b\u003e:\u003c\/td\u003e\n\u003ctd\u003eBest possible coating - guaranteed no reflexes or ghost images\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"bgltblue\"\u003e\n\u003ctd class=\"pr9\"\u003e\n\u003cb\u003eIllumination at f\/8\u003c\/b\u003e:\u003c\/td\u003e\n\u003ctd\u003eD=29 mm fully illuminated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"TS-Optics","offers":[{"title":"Default Title","offer_id":44967988298013,"sku":"TS-CCD47","price":399.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/TS-0-67x-Reducer-RC-CCD47__64846.1645046285.1280.1280.jpg?v=1684347665"}],"url":"https:\/\/davidastro.com\/collections\/ts-optics-field-flatteners-reducers-and-coma-correctors.oembed","provider":"David Astro","version":"1.0","type":"link"}