{"product_id":"optoma-zh521st","title":"Optoma ZH521ST: 5,300-lumen Full HD short-throw laser projector","description":"\u003ch3\u003eOptoma ZH521ST – Full HD laser projector for short throw distances\u003c\/h3\u003e\n\u003cp\u003eThe Optoma ZH521ST projects a 100-inch image from a distance of just around 1.75 m: its fixed short-throw lens (TR 0.79:1) significantly shortens the throw path compared with standard projectors. This makes it the choice for classrooms, meeting and training rooms where there is no long throw path available and the projector hangs close to the wall. With 5,300 ANSI lumens from a maintenance-free light source, it delivers the brightest image in this Full HD installation class and can be integrated into building systems via LAN.\u003c\/p\u003e\n\n\u003ch3\u003eKey benefits at a glance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eShort-throw lens (TR 0.79:1, fixed): 100-inch image from around 1.75 m – short throw paths in confined rooms\u003c\/li\u003e\n\u003cli\u003e5,300 ANSI lumens laser light: brightest image in this Full HD class, clearly legible even in daylight and with ceiling lights on\u003c\/li\u003e\n\u003cli\u003eLess shadowing and glare: thanks to the short distance, presenters stand in the beam less often\u003c\/li\u003e\n\u003cli\u003eMaintenance-free light source with 30,000 hours of life: usable for over ten years at 8 hours of daily operation\u003c\/li\u003e\n\u003cli\u003e24\/7 rating and IP6X-sealed imaging unit: for continuous operation in permanent installations\u003c\/li\u003e\n\u003cli\u003e360° installation and portrait mode: portrait projection and mounting at any angle, even upside down\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the Optoma ZH521ST the right choice?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eYes,\u003c\/strong\u003e for rooms with a short throw path – classrooms, meeting and training rooms with ceiling mounting close to the wall, image widths up to around 3.3 m, LAN connection and 24\/7 continuous operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot ideal,\u003c\/strong\u003e if a long throw path with zoom reserve for flexible positioning is required. In that case, a standard-throw model from the \u003ca href=\"\/en\/collections\/installationsbeamer\"\u003einstallation projector class\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable,\u003c\/strong\u003e if 4K resolution is the priority. You will find suitable models under \u003ca href=\"\/en\/collections\/4k-beamer\"\u003e4K projectors\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNot sure whether the throw path fits your room? \u003ca href=\"\/en\/pages\/kontakt\"\u003eGet in touch →\u003c\/a\u003e We'll plan the matching screen and ceiling mount at the same time.\u003c\/p\u003e\n\n\u003ch3\u003eApplications: what the Optoma ZH521ST is ideal for\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eClassrooms and training rooms.\u003c\/strong\u003e Where the wall is only a few metres away, the short-throw lens still fills a large image area. The teacher stands close to the image without being dazzled or casting a shadow, and the 5,300 ANSI lumens remain legible in daylight.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMeeting and conference rooms.\u003c\/strong\u003e Presentations, spreadsheets and video conferences work without darkening the room. Via LAN, building services integrate the projector into network management, and the maintenance-free light source saves IT from changing lamps.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigital signage and foyers.\u003c\/strong\u003e Portrait operation allows portrait projection onto steles and narrow wall surfaces from a short distance, and 24\/7 rating covers continuous use.\u003c\/p\u003e\n\n\u003ch3\u003eShort-throw projection: close to the wall, big picture\u003c\/h3\u003e\n\u003cp\u003eThe ZH521ST works with a fixed TR of 0.79:1. For a 100-inch image (image width 2.21 m), around 1.75 m between lens and surface is enough, whereas a standard projector would need twice the distance. The benefit is practical: in rooms with little depth, the projector fits in at all, the ceiling mount sits close to the wall rather than in the middle of the room, and anyone presenting in front of the image steps into the beam less often. As the lens is fixed and has no zoom, there is exactly one placement distance per image size – which makes planning clear-cut.\u003c\/p\u003e\n\n\u003ch3\u003eImage quality: 5,300 ANSI lumens, DLP engine and high contrast\u003c\/h3\u003e\n\u003cp\u003eThe DLP engine renders 1,920 × 1,080 pixels, so text, diagrams and film images look sharp with stable contours. The ZH521ST achieves its dynamic contrast of up to 3,000,000:1 via DynamicBlack laser modulation, which lowers the light depending on the scene and renders dark image areas more vividly.\u003c\/p\u003e\n\n\u003ch3\u003eNetwork connection via LAN\u003c\/h3\u003e\n\u003cp\u003eFor integration into building systems, the ZH521ST has a LAN port (RJ-45). This allows the projector to be remotely controlled over the network and its operating status monitored centrally, without a technician having to go to the unit. Picture and sound signals still run via HDMI. Control is complemented by a 12 V trigger that automatically lowers a motorised screen when the projector is switched on.\u003c\/p\u003e\n\n\u003ch3\u003eConnections\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eConnections at a glance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdl style=\"margin:1em 0;line-height:1.5;\"\u003e\n  \u003cdt style=\"font-weight:600;margin-top:0.6em;\"\u003eHDMI 2.0 (2×):\u003c\/dt\u003e\n  \u003cdd style=\"margin:0 0 0.4em 1.2em;\"\u003eTwo parallel sources such as a media player and notebook remain permanently connected; source switching is done via remote control.\u003c\/dd\u003e\n  \u003cdt style=\"font-weight:600;margin-top:0.6em;\"\u003eUSB Type A (2×):\u003c\/dt\u003e\n  \u003cdd style=\"margin:0 0 0.4em 1.2em;\"\u003ePower supply for an external casting receiver directly on the projector and port for firmware and logo uploads via USB stick.\u003c\/dd\u003e\n  \u003cdt style=\"font-weight:600;margin-top:0.6em;\"\u003eAudio out: 3.5 mm jack:\u003c\/dt\u003e\n  \u003cdd style=\"margin:0 0 0.4em 1.2em;\"\u003eConnection for active speakers or an external system. The internal 15 W mono speaker only provides basic sound for speech.\u003c\/dd\u003e\n  \u003cdt style=\"font-weight:600;margin-top:0.6em;\"\u003eLAN (RJ-45):\u003c\/dt\u003e\n  \u003cdd style=\"margin:0 0 0.4em 1.2em;\"\u003eNetwork-based remote control and status monitoring – see the section \"Network connection via LAN\" above for details. Picture and sound signals still run via HDMI.\u003c\/dd\u003e\n  \u003cdt style=\"font-weight:600;margin-top:0.6em;\"\u003e12 V trigger:\u003c\/dt\u003e\n  \u003cdd style=\"margin:0 0 0.4em 1.2em;\"\u003eSwitching output for automatically lowering a motorised screen at power-on.\u003c\/dd\u003e\n  \u003cdt style=\"font-weight:600;margin-top:0.6em;\"\u003eSecurity: Kensington + PIN:\u003c\/dt\u003e\n  \u003cdd style=\"margin:0 0 0.4em 1.2em;\"\u003eKensington lock slot and PIN lock secure the projector in publicly accessible spaces.\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch3\u003eLight source and operation\u003c\/h3\u003e\n\u003ctable class=\"table table-bordered table-sm\" style=\"border-collapse:collapse;width:100%;font-size:14px;margin:1em 0;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #c2e4c8;font-weight:600;\"\u003eLight source\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #c2e4c8;\"\u003eLaser\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #c2e4c8;font-weight:600;\"\u003eLifetime (Normal)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #c2e4c8;\"\u003e30,000 hours (over ten years at 8 hours of daily operation)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #c2e4c8;font-weight:600;\"\u003eLamp replacement\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #c2e4c8;\"\u003eMaintenance-free, no lamp replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #c2e4c8;font-weight:600;\"\u003ePower consumption\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #c2e4c8;\"\u003e210 W operation \/ 147 W Eco \/ 0.5 W standby\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #c2e4c8;font-weight:600;\"\u003eNoise level\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #c2e4c8;\"\u003e35 dB Normal \/ 29 dB Eco\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThis keeps operating costs predictable over the entire service life: no filter maintenance and constant brightness throughout.\u003c\/p\u003e\n\n\u003ch3\u003eMounting and installation\u003c\/h3\u003e\n\u003cp\u003eThe ZH521ST is compact and light and can be fixed with simple wall arms and ceiling mounts. Because the short-throw lens moves the projector close to the wall, the mount sits close to the projection surface rather than in the middle of the room. IP6X sealing protects the optical unit against dust, and high-altitude mode keeps operation stable up to an installation altitude of 2,500 m.\u003c\/p\u003e\n\u003cp\u003eWe recommend placing the ceiling mount on the screen's centre axis and factoring the fixed 106 % offset into the mount height. Any remaining deviations are compensated by ±15° keystone correction in the vertical and horizontal directions.\u003c\/p\u003e\n\n\u003ch4\u003eThrow distance by image size\u003c\/h4\u003e\n\u003ctable class=\"table table-bordered table-sm\" style=\"border-collapse:collapse;width:100%;font-size:14px;margin:1em 0;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background:#A5EEA8;\"\u003e\n      \u003cth style=\"padding:8px 12px;border:1px solid #068E52;text-align:left;color:#112C27;font-weight:600;background:#A5EEA8;\"\u003eImage size (diagonal)\u003c\/th\u003e\n      \u003cth style=\"padding:8px 12px;border:1px solid #068E52;text-align:left;color:#112C27;font-weight:600;background:#A5EEA8;\"\u003eImage width (16:9)\u003c\/th\u003e\n      \u003cth style=\"padding:8px 12px;border:1px solid #068E52;text-align:left;color:#112C27;font-weight:600;background:#A5EEA8;\"\u003eThrow distance (fixed)\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background:#ffffff;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e80 inches\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e1.77 m\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e1.40 m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#E6FFE9;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e100 inches\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e2.21 m\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e1.75 m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#ffffff;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e120 inches\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e2.66 m\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e2.10 m\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr style=\"background:#E6FFE9;\"\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e150 inches\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e3.32 m\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e2.63 m\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFor the common 100-inch screen, allow a throw distance of around 1.75 m.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions \u0026amp; weight:\u003c\/strong\u003e 274 × 108 × 216 mm (W × H × D), 3.1 kg.\u003c\/p\u003e\n\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOptoma ZH521ST (projector with fixed short-throw lens)\u003c\/li\u003e\n\u003cli\u003ePower cable\u003c\/li\u003e\n\u003cli\u003eRemote control incl. 2× AAA batteries\u003c\/li\u003e\n\u003cli\u003eQuick guide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOptoma ZH521ST vs. BenQ LH835ST vs. BenQ LH860ST – which short-throw laser projector suits you?\u003c\/h3\u003e\n\n\u003cdiv class=\"table-responsive\"\u003e\n  \u003ctable class=\"table table-bordered table-sm\" style=\"border-collapse:collapse;width:100%;font-size:14px;margin:1em 0;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"background:#A5EEA8;\"\u003e\n        \u003cth style=\"padding:8px 12px;border:1px solid #068E52;text-align:left;color:#112C27;font-weight:600;background:#A5EEA8;\"\u003e\u003c\/th\u003e\n        \u003cth style=\"padding:8px 12px;border:1px solid #068E52;text-align:left;color:#ffffff;font-weight:600;background:#068E52;\"\u003e▶ You are here\u003cbr\u003e\u003cstrong\u003eOptoma ZH521ST\u003c\/strong\u003e\n\u003c\/th\u003e\n        \u003cth style=\"padding:8px 12px;border:1px solid #068E52;text-align:left;color:#112C27;font-weight:600;background:#A5EEA8;\"\u003e\u003ca href=\"\/en\/products\/benq-lh835st-4-000-lumen-fullhd-kurzdistanz-laserbeamer-fuer-golf-sim-und-konferenzraum\" style=\"color:#112C27;\"\u003eBenQ LH835ST\u003c\/a\u003e\u003c\/th\u003e\n        \u003cth style=\"padding:8px 12px;border:1px solid #068E52;text-align:left;color:#112C27;font-weight:600;background:#A5EEA8;\"\u003e\u003ca href=\"\/en\/products\/benq-lh860st-5000-ansi-lumen-1080p-laser-simulationsprojektor\" style=\"color:#112C27;\"\u003eBenQ LH860ST\u003c\/a\u003e\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"background:#ffffff;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003eTechnology\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#A5EEA8;\"\u003eDLP\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003eDLP\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003eDLP\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#E6FFE9;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003eResolution\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#A5EEA8;\"\u003e1,920 × 1,080 (Full HD)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e1,920 × 1,080 (Full HD)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e1,920 × 1,080 (Full HD)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#ffffff;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003eBrightness\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#A5EEA8;\"\u003e5,300 ANSI lumens\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e4,000 ANSI lumens\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e5,000 ANSI lumens\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#E6FFE9;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003eContrast (dyn.)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#A5EEA8;\"\u003e3.000.000:1\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e3.000.000:1\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e3.000.000:1\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#ffffff;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003eThrow ratio\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#A5EEA8;\"\u003e0.79:1 (fixed)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e0.69–0.83:1 (zoom)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e0.50:1 (fixed)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#E6FFE9;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003eOffset\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#A5EEA8;\"\u003e106 %\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e102,5 %\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e105 %\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#ffffff;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003eLifetime (Normal)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#A5EEA8;\"\u003e30,000 h\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e20,000 h\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e20,000 h\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#E6FFE9;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003eNoise level (Normal)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#A5EEA8;\"\u003e35 dB\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e32 dB\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e36 dB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#ffffff;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003ePower consumption (operation \/ Eco)\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#A5EEA8;\"\u003e210 \/ 147 W\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e– \/ 136 W\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e347 \/ 202 W\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#E6FFE9;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e24\/7 rating\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#A5EEA8;\"\u003eYes\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e–\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e–\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#ffffff;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003eIP rating\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#A5EEA8;\"\u003eIP6X\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e–\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003eIP6X\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#E6FFE9;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003ePortrait mode \/ 360°\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#A5EEA8;\"\u003ePortrait + 360°\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e–\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e–\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#ffffff;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003eDimensions \u0026amp; weight\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#A5EEA8;\"\u003e274 × 108 × 216 mm, 3.1 kg\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e303 × 112 × 235 mm, 3.3 kg\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;\"\u003e344 × 136 × 266 mm, 5.2 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"background:#E6FFE9;\"\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#E6FFE9;\"\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#E6FFE9;text-align:center;color:#068E52;font-weight:600;\"\u003eYou are here\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#E6FFE9;text-align:center;\"\u003e\u003ca href=\"\/en\/products\/benq-lh835st-4-000-lumen-fullhd-kurzdistanz-laserbeamer-fuer-golf-sim-und-konferenzraum\" style=\"font-weight:600;color:#068E52;\"\u003eGo to BenQ LH835ST →\u003c\/a\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding:8px 12px;border:1px solid #c2e4c8;background:#E6FFE9;text-align:center;\"\u003e\u003ca href=\"\/en\/products\/benq-lh860st-5000-ansi-lumen-1080p-laser-simulationsprojektor\" style=\"font-weight:600;color:#068E52;\"\u003eGo to BenQ LH860ST →\u003c\/a\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe Optoma ZH521ST is the one to pick if the brightest image at 5,300 ANSI lumens, the longest maintenance-free period with 30,000 hours of laser running time, plus 24\/7 rating and portrait\/360° mounting in the most compact housing matter most. The BenQ LH835ST is the only one with a zoom lens (0.69–0.83:1) for more flexible placement and the quietest operation; the BenQ LH860ST moves even closer to the wall with TR 0.50 and is also IP6X-sealed, but is considerably heavier and more power-hungry.\u003c\/p\u003e\n\n\u003ch3\u003eHave you thought of everything?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreen:\u003c\/strong\u003e for a 100-inch diagonal (throw distance 1.75 m), a matte white \u003ca href=\"\/en\/collections\/leinwaende\"\u003escreen\u003c\/a\u003e with gain 1.0; for bright rooms with ambient light, a \u003ca href=\"\/en\/collections\/tageslicht-und-kontrast\"\u003edaylight or contrast screen\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eceiling mount\u003c\/strong\u003e for short-throw mounting close to the wall: see \u003ca href=\"\/en\/collections\/beamer-deckenhalterungen\"\u003eprojector ceiling mounts\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHDMI cable\u003c\/strong\u003e in High Speed quality is sufficient for Full HD, even with ceiling mounting. Only from around 15 m does an active or optical HDMI cable make sense: \u003ca href=\"\/en\/collections\/hdmi-kabel\"\u003eHDMI cables category\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal speakers\u003c\/strong\u003e for intelligible speech: the \u003ca href=\"\/en\/products\/celexon-aktivlautsprecher-set-525-b-2x30w-2-wege-aktivboxen-weiss\"\u003ecelexon active speaker set\u003c\/a\u003e; for higher-quality conference audio systems, the Kindermann FleX Series can be added\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWireless presentation\u003c\/strong\u003e for BYOD: a receiver from the category \u003ca href=\"\/en\/collections\/kabellose-praesentation\"\u003eWireless presentation\u003c\/a\u003e adds AirPlay and Miracast at the HDMI input\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently asked questions about the Optoma ZH521ST\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow close to the projection surface does the ZH521ST need to be?\u003c\/strong\u003e\u003cbr\u003eThanks to the fixed short-throw lens (TR 0.79:1), around 1.75 m is enough for a 100-inch image, and about 2.10 m for 120 inches.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the ZH521ST suitable for ceiling mounting close to the wall?\u003c\/strong\u003e\u003cbr\u003eYes. Thanks to the fixed offset and portrait\/360° operation, it can be mounted close to the wall in any orientation; minor deviations are corrected by keystone correction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I mirror my laptop or smartphone wirelessly?\u003c\/strong\u003e\u003cbr\u003ePicture and control signals run via HDMI and LAN; Wi-Fi is not built in as standard. For wireless mirroring, add a system for \u003ca href=\"\/en\/collections\/kabellose-praesentation\"\u003ewireless presentation\u003c\/a\u003e AirPlay and Miracast.\u003c\/p\u003e\n\n\u003ch3\u003eConclusion\u003c\/h3\u003e\n\u003cp\u003eFor installations with a short throw path, the ZH521ST is the right choice: it fills a large image area from a mounting position close to the wall, delivers the brightest image in its Full HD class and runs with low maintenance in continuous operation thanks to IP6X sealing, 24\/7 rating and 30,000 h laser running time. For a tailor-made configuration of projector, screen, mount and control, our specialist advisers are happy to help by phone, WhatsApp or email: \u003ca href=\"\/en\/pages\/kontakt\"\u003eRequest a complete solution →\u003c\/a\u003e.\u003c\/p\u003e","brand":"Optoma","offers":[{"title":"Default Title","offer_id":47748599218307,"sku":"1000039955","price":1609.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0721\/2639\/8595\/files\/Optoma-ZH521ST-Kurzdistanz-Beamer-mit-Full-HD-Aufloesung-und-5300-Lumen-fuer-helle-Raeume.jpg?v=1793720391","url":"https:\/\/www.beamer-discount.de\/en\/products\/optoma-zh521st","provider":"Beamer-Discount","version":"1.0","type":"link"}