{"product_id":"optoma-zk521st-b-5000-lumens-4k-uhd-short-throw-golf-simulator-projector","title":"Optoma ZK521ST-B 5000-Lumens 4K UHD Short Throw Golf Simulator Projector","description":"\u003cp\u003eThe Optoma ZK521ST-B is a true 4K UHD DuraCore laser projector engineered for serious golf simulators and commercial entertainment spaces. A powerful 5,000-lumen laser engine and 8.3 million pixels keep fairways, greens, and ball flight vivid and razor-sharp on screens up to 300 inches, even in rooms with significant ambient light. The black chassis is purpose-built to blend into a premium simulator setup.\u003cbr\u003e\u003cbr\u003eA 0.79:1 short-throw lens keeps the projector closer to the impact screen than a standard lens, reducing shadows and the risk of club and ball interference. Custom aspect ratio support and geometric correction let the image fill any screen exactly, while a dedicated Golf Sim color mode enhances blue skies, deep shadows, and natural grass tones. Smart Fit uses your smartphone camera to detect the screen frame and automatically align the image in seconds.\u003cbr\u003e\u003cbr\u003eThe DuraCore laser runs maintenance-free for up to 30,000 hours with instant on and off and no lamps to replace. A responsive 8.6 ms input lag at 1080p 120Hz delivers fast, true-to-swing feedback, and dual HDMI 2.0 inputs plus full network control make it equally capable for golf simulation, gaming, and big-screen entertainment.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOptoma ZK521ST-B 5000-Lumens 4K UHD Short Throw Golf Simulator Projector\u003c\/li\u003e\n\u003cli\u003eAC Power Cord\u003c\/li\u003e\n\u003cli\u003eRemote Control\u003c\/li\u003e\n\u003cli\u003e(2) AAA Batteries\u003c\/li\u003e\n\u003cli\u003eQuick Start User Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cb\u003eNative 4K UHD Clarity\u003c\/b\u003e\u003cbr\u003eTrue 4K resolution renders 8.3 million pixels for sharper fairways, clearer greens, and legible simulator data, four times the detail of Full HD.\u003cbr\u003e\u003cbr\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Optoma ZK521ST-B 5000-Lumens 4K UHD Short Throw Golf Simulator Projector 4K clarity with shot data.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0806\/2094\/5711\/files\/Optoma-ZK521ST-B-4k-clarity-with-shot-data_480x480.png?v=1781596632\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eBrilliant 5,000 Lumens\u003c\/b\u003e\u003cbr\u003eA high-output laser engine keeps the image vivid for home golf simulators and brighter commercial entertainment or training spaces.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eGolf Sim Color Mode\u003c\/b\u003e\u003cbr\u003eA dedicated picture mode tunes brighter blue skies, deeper shadows, and natural green grass tones for realistic course rendering.\u003cbr\u003e\u003cbr\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Optoma ZK521ST-B 5000-Lumens 4K UHD Short Throw Golf Simulator Projector Golf Sim color mode.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0806\/2094\/5711\/files\/Optoma-ZK521ST-B-golf-sim-color-mode_480x480.png?v=1781596635\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eShort-Throw 0.79:1 Lens\u003c\/b\u003e\u003cbr\u003eKeeps the projector closer to the impact screen than a standard lens, reducing shadows and the risk of club and ball interference.\u003cbr\u003e\u003cbr\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Optoma ZK521ST-B 5000-Lumens 4K UHD Short Throw Golf Simulator Projector in a home golf simulator.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0806\/2094\/5711\/files\/Optoma-ZK521ST-B-in-a-home-golf-simulator_480x480.png?v=1781596629\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eSmart Fit Auto-Alignment\u003c\/b\u003e\u003cbr\u003eUses your smartphone camera to detect the screen frame and automatically correct image alignment, cutting installation time.\u003cbr\u003e\u003cbr\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" alt=\"Optoma ZK521ST-B 5000-Lumens 4K UHD Short Throw Golf Simulator Projector Smart Fit auto alignment.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0806\/2094\/5711\/files\/Optoma-ZK521ST-B-smart-fit-auto-alignment_480x480.png?v=1781596639\"\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eCustom Aspect Ratio Support\u003c\/b\u003e\u003cbr\u003eGeometric correction and flexible aspect ratios let the image fill any impact screen exactly, from 30 to 300 inches diagonal.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLow-Latency 120Hz Response\u003c\/b\u003e\u003cbr\u003eResponsive 8.6 ms input lag at 1080p 120Hz delivers fast, true-to-swing feedback for simulation and gaming.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eMaintenance-Free DuraCore Laser\u003c\/b\u003e\u003cbr\u003eThe laser light source holds consistent brightness for up to 30,000 hours with instant on and off and no lamps to replace.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFlexible Connectivity and Control\u003c\/b\u003e\u003cbr\u003eDual HDMI 2.0 inputs, USB-A, RJ45 LAN, RS232, and a 12V trigger support gaming consoles, media players, and integrated installs.\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eIncluded with your purchase:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOptoma ZK521ST-B 5000-Lumens 4K UHD Short Throw Golf Simulator Projector\u003c\/li\u003e\n\u003cli\u003eAC Power Cord\u003c\/li\u003e\n\u003cli\u003eRemote Control\u003c\/li\u003e\n\u003cli\u003e(2) AAA Batteries\u003c\/li\u003e\n\u003cli\u003eQuick Start User Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDisplay Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDisplay Technology: DLP\u003c\/li\u003e\n\u003cli\u003eNative Resolution: 4K UHD (3840 x 2160)\u003c\/li\u003e\n\u003cli\u003eBrightness: 5,000 lumens\u003c\/li\u003e\n\u003cli\u003eContrast Ratio: 300,000:1\u003c\/li\u003e\n\u003cli\u003eDynamic Contrast: 2,000,000:1\u003c\/li\u003e\n\u003cli\u003eNative Aspect Ratio: 16:9\u003c\/li\u003e\n\u003cli\u003eCompatible Aspect Ratios: 4:3, 16:9, 16:10, plus custom via geometric correction\u003c\/li\u003e\n\u003cli\u003eKeystone Correction Horizontal: +\/-15°\u003c\/li\u003e\n\u003cli\u003eKeystone Correction Vertical: +\/-15°\u003c\/li\u003e\n\u003cli\u003eFour-Corner Correction: Yes\u003c\/li\u003e\n\u003cli\u003eUniformity: 75%\u003c\/li\u003e\n\u003cli\u003eScreen Size: 30\" - 300\" diagonal\u003c\/li\u003e\n\u003cli\u003eHorizontal Scan Rate: 15 - 150 kHz\u003c\/li\u003e\n\u003cli\u003eVertical Scan Rate: 24 - 240 Hz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eLight Source:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLight Source Type: Laser (DuraCore)\u003c\/li\u003e\n\u003cli\u003eLaser Life: 30,000 hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eProjection Optics:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThrow Ratio: 0.79:1\u003c\/li\u003e\n\u003cli\u003eFocal Length: 11.6 mm\u003c\/li\u003e\n\u003cli\u003eZoom Type: Fixed\u003c\/li\u003e\n\u003cli\u003eLens Shift: Vertical 104% - 125%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eConnectivity:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInputs: (2) HDMI 2.0, (1) VGA In\u003c\/li\u003e\n\u003cli\u003eOutputs: (2) USB-A 2.0, (1) 3D Sync Out, (1) Audio 3.5mm\u003c\/li\u003e\n\u003cli\u003eControl: (1) RJ45, (1) RS232, (1) 12V Trigger\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eGeneral:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpeaker: 1 x 15W\u003c\/li\u003e\n\u003cli\u003eNoise Level: 29 dB(A)\u003c\/li\u003e\n\u003cli\u003eInput Lag: 16.7 ms (4K\/60Hz), 8.6 ms (1080p\/120Hz)\u003c\/li\u003e\n\u003cli\u003e3D: Full 3D (HDMI 1.4a)\u003c\/li\u003e\n\u003cli\u003e24\/7 Operation: Yes\u003c\/li\u003e\n\u003cli\u003e360° Operation: Yes\u003c\/li\u003e\n\u003cli\u003eSecurity: Security bar, Kensington Lock, password protected interface\u003c\/li\u003e\n\u003cli\u003eSoftware: Optoma Management Suite (OMS), Smart Control App\u003c\/li\u003e\n\u003cli\u003eIn the Box: AC power cord, remote control, (2) AAA batteries, quick start user manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003ePower:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower Supply: AC 100V - 240V, 50-60Hz\u003c\/li\u003e\n\u003cli\u003ePower Consumption (Standby): \u0026lt;0.5W\u003c\/li\u003e\n\u003cli\u003ePower Consumption (Eco): 147W\u003c\/li\u003e\n\u003cli\u003ePower Consumption (Bright): 196W\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003eWeight and Dimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 8.5\"W x 10.8\"D x 4.3\"H\u003c\/li\u003e\n\u003cli\u003eNet Weight: 6.6 lbs\u003c\/li\u003e\n\u003cli\u003eGross Weight: 9.4 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: How long does the laser light source last?\u003c\/b\u003e\u003cbr\u003eA: The DuraCore laser is rated for up to 30,000 hours of maintenance-free operation, so there are no lamps to replace.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eQ: Is the ZK521ST-B bright enough for a commercial space?\u003c\/b\u003e\u003cbr\u003eA: Yes. At 5,000 lumens it stays vivid in home simulators and holds up well in brighter commercial entertainment and training rooms.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eQ: How does the 0.79:1 short throw help in a sim?\u003c\/b\u003e\u003cbr\u003eA: It keeps the projector closer to the impact screen than a standard lens, which reduces shadows and the risk of club and ball interference.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eQ: What is Smart Fit?\u003c\/b\u003e\u003cbr\u003eA: Smart Fit uses your smartphone camera to detect the screen frame and automatically align and correct the projected image, which speeds up installation.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eQ: What is the input lag for gaming?\u003c\/b\u003e\u003cbr\u003eA: Input lag is 8.6 ms at 1080p 120Hz and 16.7 ms at 4K 60Hz for responsive, true-to-swing feedback.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eQ: Can it match a non-standard screen size?\u003c\/b\u003e\u003cbr\u003eA: Yes. Custom aspect ratio support, four-corner adjustment, and keystone correction let you fit the image to virtually any impact screen.\u003c\/p\u003e\n\u003ch3\u003eResources\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDocuments:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"text-decoration: underline; color: rgb(100, 148, 62);\"\u003e\u003cstrong\u003e\u003ca style=\"color: rgb(100, 148, 62); text-decoration: underline;\" title=\"Optoma ZK521ST-B Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0806\/2094\/5711\/files\/Optoma-ZK521ST-B-5000-Lumens-4K-UHD-Short-Throw-Golf-Simulator-Projector-Datasheet.pdf?v=1781689914\" target=\"_blank\" rel=\"noopener\"\u003eOptoma ZK521ST-B Datasheet\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Optoma","offers":[{"title":"Default Title","offer_id":58077637837103,"sku":"ZK521ST-B","price":2699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/2094\/5711\/files\/Optoma-ZK521ST-B-front-view.png?v=1781596614","url":"https:\/\/indoorgolfoutlet.com\/products\/optoma-zk521st-b-5000-lumens-4k-uhd-short-throw-golf-simulator-projector","provider":"Indoor Golf Outlet","version":"1.0","type":"link"}