{"product_id":"stellalyra-4-5-f-4-m-lrn-d-carbon-fibre-imaging-newtonian-reflector-with-2-dual-speed-r-p-focuser","title":"StellaLyra 4.5\" f\/4 M-LRN-D Carbon Fibre Imaging Newtonian Reflector with 2\" Dual-Speed R\u0026P Focuser","description":"\u003cstyle\u003e\n.dcs-n45{max-width:1120px;margin:0 auto;color:#243445;font:inherit;line-height:1.7;text-align:left;overflow-wrap:anywhere}\n.dcs-n45 *{box-sizing:border-box}.dcs-n45 h2,.dcs-n45 h3{color:#091725;line-height:1.25;letter-spacing:normal;text-align:left}\n.dcs-n45 h2{font-size:clamp(25px,3vw,34px);margin:0 0 18px}.dcs-n45 h3{font-size:23px;margin:0 0 16px}\n.dcs-n45 p{margin:0 0 16px}.dcs-n45 figure{margin:0;background:#fff;border:1px solid #e0e5e9;border-radius:12px;overflow:hidden}\n.dcs-n45 img{display:block;width:100%;height:auto;max-width:600px;margin:auto;object-fit:contain}\n.dcs-n45 .n45-feature,.dcs-n45 .n45-intro{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:clamp(20px,4vw,40px);align-items:center;margin:0 0 38px}\n.dcs-n45 .n45-intro{padding:24px;background:#091725;border-top:4px solid #c89524;border-radius:12px}\n.dcs-n45 .n45-intro h2,.dcs-n45 .n45-intro p{color:#fff!important}\n.dcs-n45 .n45-label{font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:700}\n.dcs-n45 .n45-panel{background:#f3f5f7;border-radius:12px;padding:24px;margin:0 0 32px}\n.dcs-n45 ul{padding-left:22px;margin:0 0 16px}.dcs-n45 li{margin-bottom:8px}\n.dcs-n45 table{border-collapse:collapse;width:100%;table-layout:fixed;margin:16px 0 28px;font-size:15px}\n.dcs-n45 th,.dcs-n45 td{padding:10px 12px;border-bottom:1px solid #dce2e8;text-align:left;vertical-align:top;white-space:normal}\n.dcs-n45 th{background:#f3f5f7;color:#091725}.dcs-n45 th[scope=row]{width:42%}\n.dcs-n45 details{border-bottom:1px solid #dce2e8;padding:16px 0}.dcs-n45 summary{cursor:pointer;font-weight:700;color:#091725}.dcs-n45 details p{margin:12px 0 0}\n.dcs-n45 .n45-note{border-left:3px solid #c89524;padding:14px 18px;background:#fff8e8;margin:28px 0}\n.dcs-n45 .n45-links{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0}.dcs-n45 .n45-links a{padding:12px 18px;border-radius:6px;background:#c89524;color:#091725!important;font-weight:700;text-decoration:none!important;min-height:44px}\n.dcs-n45 .n45-links a:last-child{background:#f0f3f6}.dcs-n45 a:focus-visible,.dcs-n45 summary:focus-visible{outline:3px solid #2874aa;outline-offset:4px}\n@media(max-width:600px){.dcs-n45 .n45-intro,.dcs-n45 .n45-panel{padding:18px}.dcs-n45 th,.dcs-n45 td{padding:9px 7px;font-size:14px}}\n\u003c\/style\u003e\n\u003csection class=\"dcs-n45\"\u003e\n\u003cdiv class=\"n45-intro\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"n45-label\"\u003eStellaLyra · 4.5-inch f\/4 Imaging Newtonian\u003c\/p\u003e\n\u003ch2\u003eBuild a compact rig around a wider view.\u003c\/h2\u003e\n\u003cp\u003eThe StellaLyra M-LRN-D combines a 114mm aperture and 456mm focal length in a carbon-fibre optical tube. It is a compact starting point for a dedicated deep-sky imaging system, with a dual-speed rack-and-pinion focuser and integrated tube rotation.\u003c\/p\u003e\n\u003cp\u003ePair it with a suitable tracking mount, camera and coma corrector to build a setup around the targets you want to photograph.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/stellalyra-45-f4-mlrnd-carbon-imaging-newtonian.jpg?v=1789723067\" alt=\"StellaLyra 4.5-inch f\/4 carbon-fibre imaging Newtonian optical tube\" width=\"600\" height=\"600\" loading=\"lazy\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n45-panel\"\u003e\n\u003ch3\u003eWhy choose this imaging Newtonian?\u003c\/h3\u003e\n\u003cp\u003eYou want a short-focal-length reflector and are happy to assemble and tune your own imaging system. Its appeal lies in a compact optical tube that leaves the choice of camera, mount and control equipment to you.\u003c\/p\u003e\n\u003cp\u003eThis is an optical tube assembly, not a complete telescope-and-camera package. Budget for the full setup and check the mechanical connections before buying individual accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n45-feature\"\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/stellalyra-45-carbon-newtonian-detail-1.jpg?v=1789759508\" alt=\"StellaLyra 4.5-inch carbon-fibre imaging Newtonian side view\" width=\"600\" height=\"600\" loading=\"lazy\"\u003e\u003c\/figure\u003e\u003cdiv\u003e\n\u003ch3\u003eChoose your field before your first target.\u003c\/h3\u003e\n\u003cp\u003eWith the same camera, a shorter focal length captures a wider area of sky than a longer one. That can suit larger nebulae, clusters and star fields, depending on your sensor.\u003c\/p\u003e\n\u003cp\u003eStart by checking how a few favourite targets fit your proposed camera and this focal length. A smaller sensor crops the field; a larger one also places greater demands on correction and illumination. Neither the focal ratio nor the focuser diameter guarantees full-frame coverage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n45-feature\"\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/stellalyra-45-carbon-newtonian-detail-2.jpg?v=1789759522\" alt=\"Front of the StellaLyra 4.5-inch Newtonian and Vixen-style dovetail\" width=\"600\" height=\"480\" loading=\"lazy\"\u003e\u003c\/figure\u003e\u003cdiv\u003e\n\u003ch3\u003eA compact tube, with mounting included.\u003c\/h3\u003e\n\u003cp\u003eThe carbon-fibre tube includes an integrated rotation assembly and a full-length Vixen-style dovetail. The published telescope weight is 2.8kg.\u003c\/p\u003e\n\u003cp\u003eChoose the mount around the complete working load: telescope, camera, corrector, guiding equipment and cables. Leave practical headroom for tracking performance, and balance the finished system rather than the empty optical tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n45-feature\"\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/stellalyra-45-carbon-newtonian-detail-4.jpg?v=1789759552\" alt=\"StellaLyra 2-inch dual-speed rack-and-pinion focuser\" width=\"600\" height=\"600\" loading=\"lazy\"\u003e\u003c\/figure\u003e\u003cdiv\u003e\n\u003ch3\u003eFine control where the camera meets the telescope.\u003c\/h3\u003e\n\u003cp\u003eThe 2-inch dual-speed rack-and-pinion focuser gives you coarse and fine adjustment for finding focus.\u003c\/p\u003e\n\u003cp\u003eMake focus part of a repeatable routine: use short test exposures, examine star size and recheck after the setup has settled. Support cables so their weight does not pull on the camera as the mount moves across the sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n45-feature\"\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/stellalyra-45-carbon-newtonian-detail-5.jpg?v=1789759565\" alt=\"Underside of the rack-and-pinion focuser showing the toothed rack\" width=\"600\" height=\"600\" loading=\"lazy\"\u003e\u003c\/figure\u003e\u003cdiv\u003e\n\u003ch3\u003ePlan the complete camera connection.\u003c\/h3\u003e\n\u003cp\u003eFor imaging, include a compatible coma corrector to control star distortion away from the centre. Its required sensor spacing and the telescope’s ability to reach focus are separate checks.\u003c\/p\u003e\n\u003cp\u003eAdd up the camera connection, adapters and any filter hardware before ordering. An accessory fitting into a 2-inch opening does not establish that the whole combination will focus or give the intended correction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n45-note\"\u003e\n\u003cstrong\u003eJune 2026 tube revision\u003c\/strong\u003e\u003cp\u003eThe supplier introduced a shorter-tube version to broaden coma-corrector compatibility. Ask us to confirm the supplied revision and your camera\/corrector combination before choosing adapters. Earlier published focus distances should not be treated as universal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n45-feature\"\u003e\n\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/stellalyra-45-carbon-newtonian-detail-3.jpg?v=1789759538\" alt=\"Rear of the StellaLyra carbon-fibre tube and mounting assembly\" width=\"600\" height=\"576\" loading=\"lazy\"\u003e\u003c\/figure\u003e\u003cdiv\u003e\n\u003ch3\u003eMake alignment part of the setup.\u003c\/h3\u003e\n\u003cp\u003eCollimation aligns the two mirrors. Check it with a suitable tool before evaluating image quality, especially after transporting the telescope.\u003c\/p\u003e\n\u003cp\u003eOnce focused, inspect stars across a short test exposure. If the corners differ, check alignment, camera tilt and corrector spacing methodically. Change one thing at a time so you can see whether it improves the result.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWhat is included—and what completes the system?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eIncluded\u003c\/th\u003e\n\u003cth scope=\"col\"\u003ePlan separately\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon-fibre optical tube\u003c\/td\u003e\n\u003ctd\u003eTracking mount and tripod or pier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2-inch dual-speed R\u0026amp;P focuser\u003c\/td\u003e\n\u003ctd\u003eImaging camera and compatible coma corrector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube mounting\/rotation assembly\u003c\/td\u003e\n\u003ctd\u003eCamera adapters and required spacing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVixen-style dovetail\u003c\/td\u003e\n\u003ctd\u003eCollimation tool, power and control equipment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eGuiding equipment may be needed for your chosen exposures and mount. Eyepieces are not included; discuss visual-use requirements separately if that is also part of your plan.\u003c\/p\u003e\n\u003ch3\u003eCore specifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOptical design\u003c\/th\u003e\n\u003ctd\u003eParabolic Newtonian reflector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAperture\u003c\/th\u003e\n\u003ctd\u003e114mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFocal length \/ ratio\u003c\/th\u003e\n\u003ctd\u003e456mm \/ f\/4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTube material\u003c\/th\u003e\n\u003ctd\u003eCarbon fibre\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFocuser\u003c\/th\u003e\n\u003ctd\u003e2-inch dual-speed rack-and-pinion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMount connection\u003c\/th\u003e\n\u003ctd\u003eVixen-style dovetail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePublished telescope weight\u003c\/th\u003e\n\u003ctd\u003e2.8kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eBefore you build the rig\u003c\/h3\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this an automatic or smart telescope?\u003c\/summary\u003e\u003cp\u003eNo. It is an optical tube for a separately assembled system. Tracking, image capture and control depend on the mount, camera and software you choose.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use my existing camera?\u003c\/summary\u003e\u003cp\u003ePossibly, but confirm the camera model, corrector and available focus travel together. Send us those details, including any filter drawer or wheel, so we can help check the proposed connection.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eDoes f\/4 mean tracking is unimportant?\u003c\/summary\u003e\u003cp\u003eNo. Tracking errors, vibration and poor alignment can still spoil an exposure. A shorter focal length can make the system more forgiving than a long-focal-length rig with the same camera, but careful setup remains worthwhile.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat should I test on the first night?\u003c\/summary\u003e\u003cp\u003eBegin with reliable focus, stable tracking and a short star-field exposure. Check the centre and corners before committing to a long sequence. Once the system is behaving consistently, build your imaging session around a well-framed target.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdiv class=\"n45-note\"\u003e\n\u003cstrong\u003eStock and delivery\u003c\/strong\u003e\u003cp\u003eAvailability reflects supplier stock and may change. Contact Dark Clear Skies to confirm dispatch timing if you need the telescope by a particular date.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n45-links\"\u003e\n\u003ca href=\"\/pages\/stellalyra\"\u003eExplore the StellaLyra range\u003c\/a\u003e\u003ca href=\"mailto:contact@darkclearskies.co.uk?subject=StellaLyra%204.5-inch%20imaging%20setup\"\u003eCheck my camera setup\u003c\/a\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"StellaLyra","offers":[{"title":"Default Title","offer_id":55665186275704,"sku":null,"price":299.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/stellalyra-45-f4-mlrnd-carbon-imaging-newtonian.jpg?v=1789723067","url":"https:\/\/www.darkclearskies.co.uk\/products\/stellalyra-4-5-f-4-m-lrn-d-carbon-fibre-imaging-newtonian-reflector-with-2-dual-speed-r-p-focuser","provider":"Dark Clear Skies ","version":"1.0","type":"link"}