{"product_id":"askar-fra500-90-apo-quintuplet","title":"Askar FRA500 - 90 APO (Quintuplet)","description":"\u003cp\u003e\u003cstrong\u003eAskar is the new line of specialised telescopes for astrophotography with particular emphasis on optical and also mechanical quality.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Anotation 'FRA' represents refractor telescopes with an integrated corrector element for a flat and corrected field of view. The FRA series is mainly used for astrophotography.\u003cbr data-mce-fragment=\"1\"\u003eThe ASKAR FRA500 is a Petzval 5-element Apochromat with 500mm focal length, f\/5.6 focal ratio and 90mm aperture. 2 ED glasses are installed in the front lens for improved colour correction. This APO is also suitable for cameras up to full frame sized sensors.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe dew cap also provides good protection against stray light and is retractable. The large focuser also holds heavy cameras and allows for precise focusing thanks to the microfocus adjustment wheel. The focuser offers a range of connections for all common astro thread sizes. Also included is an adapter to M48 x 0.75, which is ideal for all cameras with a 55mm working distance. This adapter also has a space to screw in 2\" filters.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpec:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAperture: 90mm\u003c\/li\u003e\n\u003cli\u003eFocal length: 500mm\u003c\/li\u003e\n\u003cli\u003eAperture ratio: f\/5.6\u003c\/li\u003e\n\u003cli\u003eTelescopic type: 5-element quintuplet APO with 3-element ED lens\u003c\/li\u003e\n\u003cli\u003eTransport length: 410mm\u003c\/li\u003e\n\u003cli\u003eWeight: 4.1 kg\u003c\/li\u003e\n\u003cli\u003eConnection camera side: M68x1, M54x0.75, M52x0.75 indoor and M48x0.75\u003c\/li\u003e\n\u003cli\u003eFilter thread: A 2\" filter thread (M48x0.75) is integrated into the camera adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5-element quintuplet design with corrector in tube Two ED glasses in a triplet lens for very good correction of the color.\u003c\/li\u003e\n\u003cli\u003e55mm image circle with full illumination and correction.\u003c\/li\u003e\n\u003cli\u003eStable 3.5\" RAP focuser with micro reduction gear and 360° rotation.\u003c\/li\u003e\n\u003cli\u003eAdapters to M68x1, M54x0.75, M52x0.75 and M48x0.75 are all included.\u003c\/li\u003e\n\u003cli\u003eFrom the M48 thread you have a comfortable working distance for all common astro cameras and DSLR Cameras.\u003c\/li\u003e\n\u003cli\u003eFlexible Losmandy Level dovetail bar with photo tripod connection and carrying handle with flexible slotted hole.\u003c\/li\u003e\n\u003cli\u003eFinder shoe for standard viewfinder holder.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cem\u003eWhats included:\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003col\u003e\n\u003cli\u003eCNC Tube Clamps\u003c\/li\u003e\n\u003cli\u003eLosmandy Level Dovetail Bar\u003c\/li\u003e\n\u003cli\u003eCarry Handle\u003c\/li\u003e\n\u003cli\u003ePhoto Adapter\u003c\/li\u003e\n\u003cli\u003eFinder Shoe (Assembled)\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Askar Sharpstar","offers":[{"title":"Default Title","offer_id":43634026086643,"sku":"FRA500","price":2572.48,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0596\/1924\/6275\/products\/Askar-FRA500-APO-Telescope_2.jpg?v=1675800572","url":"https:\/\/www.horizonastronomy.ie\/en-dk\/products\/askar-fra500-90-apo-quintuplet","provider":"Horizon Astronomy • Telescope Center","version":"1.0","type":"link"}