{"product_id":"diffuse-reflectance-standard-calibration-target-package-t4-r50x","title":"Diffuse Reflectance Standard Calibration Target Package (T4-R50X)","description":"\u003cp\u003eMAPIR offers our compact and durable Diffuse Reflectance Standard Calibration Target Package (T4-R50 and T4-R50X)), which contains 4 reference standard targets of known reflectance. Diffuse and total reflectance percent measurements from 250-2500nm were made using multiple Shimadzu spectrophotometers incorporating an integrating sphere. The lambertian reflectance panels can be captured from any angle thanks to similar diffuse and total reflection properties, though capturing straight-on is recommended. Our computer vision software automatically finds the QR symbol in the target images and calculates the pixel to reflectance relationship using the known target material reflectance (\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/5566\/files\/MAPIR_Diffuse_Reflectance_Standard_Calibration_Target_Data_T4.xlsx?v=1741759157\" target=\"_blank\"\u003edata download here\u003c\/a\u003e).\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe reflectance targets are composed of a felt-like sheet material adhered to a plastic substrate. Care should be taken to ensure the targets are debris-free to produce the best calibration results, often a puff of air is all that is needed to clean them. \u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eThe target's housing is made of durable polypropylene plastic and the QR fiducial pattern material is a UV durable, laminated label.\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003ePackage Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eReference Target Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cstrong\u003eRecommended Capture Distance (\u003ca href=\"https:\/\/www.mapir.camera\/pages\/survey3-cameras\"\u003eSurvey3W\u003c\/a\u003e)\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cstrong\u003eRecommended Capture Distance (\u003ca href=\"https:\/\/www.mapir.camera\/pages\/survey3-cameras\"\u003eSurvey3N\u003c\/a\u003e)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/www.mapir.camera\/en-gb\/products\/diffuse-reflectance-standard-calibration-target-package-t4p-r25\" target=\"_blank\"\u003eT4P-R25\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mapir.camera\/products\/diffuse-reflectance-standard-calibration-target-package-t4p-r25m\" rel=\"noopener\" target=\"_blank\"\u003eT4P-R25M\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan\u003e1.0\" x 1.0\" (25 x 25 mm)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e4 in - 8 ft (0.1 - 2.4 m)\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e10 in - 20 ft (0.3 - 6.0 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mapir.camera\/collections\/multispectral-reflectance-reference-calibration-targets\/products\/diffuse-reflectance-standard-calibration-target-package-t4-r50\" rel=\"noopener\" target=\"_blank\"\u003eT4-R50\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mapir.camera\/collections\/multispectral-reflectance-reference-calibration-targets\/products\/diffuse-reflectance-standard-calibration-target-package-t4-r50\"\u003eT4-R50X\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mapir.camera\/collections\/multispectral-reflectance-reference-calibration-targets\/products\/diffuse-reflectance-standard-calibration-target-package-br-t4p-r50\" rel=\"noopener\" target=\"_blank\"\u003eT4P-R50\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan\u003e2.0\" x 2.0\" (50 x 50 mm)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e8 in - 16 ft (0.2 - 5.0 m)\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e20 in - 40 ft (0.5 - 12.0 m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/www.mapir.camera\/collections\/multispectral-reflectance-reference-calibration-targets\/products\/diffuse-reflectance-standard-calibration-target-package-t4-r125\" target=\"_blank\"\u003eT4-R125\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.mapir.camera\/collections\/multispectral-reflectance-reference-calibration-targets\/products\/diffuse-reflectance-standard-calibration-target-package-br-t4p-r125\" rel=\"noopener\" target=\"_blank\"\u003eT4P-R125\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan\u003e5.0\" x 5.0\" (125 x 125 mm)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e20 in - 33 ft (0.5 - 10.0 m)\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: center;\"\u003e40 in - 105 ft (1.0 - 32.0 m)\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe green outer case of the T4-R50 is impact resistant, crushproof, dustproof and IP67 waterproof (IP67 rating = waterproof to a depth of 1 meter for 30 minutes when latched). It's \u003cspan\u003epolypropylene plastic resists chemicals while protecting the internals from moisture. \u003c\/span\u003eThe large hinged clasp latches the halves securely. Twisting the black circular lock fastens the clasp to the case, and there are 2 additional keys included to further lock it. A hole for a carabiner or other clip is available on one of the shorter ends (see drawing).\u003c\/p\u003e\n\u003cp\u003eThe T4-R50X adds small black brackets on each side which allows you to attach either a \u003ca href=\"https:\/\/www.mapir.camera\/collections\/multispectral-reflectance-reference-calibration-targets\/products\/t4-insert-compass-levels\"\u003eT4 Insert: Compass \u0026amp; Levels\u003c\/a\u003e, and\/or the \u003ca href=\"https:\/\/www.mapir.camera\/collections\/multispectral-reflectance-reference-calibration-targets\/products\/t4-insert-daq-m-180d\"\u003eT4 Insert: DAQ-M Frame - 180 Degrees\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eTo use the target, simply capture a photo of the entire open package, making sure the QR side and the 4 target side are visible. Try to make sure no harsh\/dark shadows intrude on the white outer perimeter of the QR label, rotating the target as needed. Full capturing tutorial \u003ca href=\"https:\/\/www.mapir.camera\/pages\/calibration-target-t3-capture-procedure\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eUsing our \u003ca rel=\"noopener\" href=\"https:\/\/www.mapir.camera\/collections\/software\/products\/chloros\" target=\"_blank\"\u003eChloros\u003c\/a\u003e or \u003ca href=\"https:\/\/www.mapir.camera\/collections\/software\/products\/mapir-cloud-subscription\"\u003eMAPIR Cloud\u003c\/a\u003e software you can provide photos of this target package and the QR fiducial pattern should be automatically detected, regardless of 3D pose. The pixel values from the targets will be measured and calibration formulas will be calculated. The reflectance calibration will then be applied to the remainder of your images until a new target image is found (depends on recalibration setting value). An unlimited number of target images can be used to correct your images for reflectance over time and across various lighting environments (i.e. cloudy days). In order to fully calibrate the images for reflectance you will need the log from our ambient light sensors (\u003ca rel=\"noopener\" href=\"https:\/\/www.mapir.camera\/pages\/daq-a-ppk-data-logger\" target=\"_blank\"\u003eDAQ-A-SD\u003c\/a\u003e, \u003ca rel=\"noopener\" href=\"https:\/\/www.mapir.camera\/collections\/daq-m\/products\/daq-m\" target=\"_blank\"\u003eDAQ-M\u003c\/a\u003e). \u003cspan\u003eUsing the image viewer in Chloros you can calculate the raster\/index images (for example NDVI) and then apply a color map (LUT).\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\u003cspan\u003eAutomatic Target Pixel Sampling At Any Angle\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0878\/4732\/files\/t4_target_angles_w.jpg?v=1743111867\" width=\"100%\"\u003e\u003c\/p\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003cp\u003eTotal Closed Dimensions: 9.5\" x 5.8\" x 2.8\" (24.13 x 14.73 x 7.11 cm)\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eTotal Open Dimensions: 9.5\" x 11.3\" x 1.9\" (24.13 x 28.70 x 4.83 cm)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eEach Target: 2.0\" x 2.0\" (50 x 50 mm)\u003c\/p\u003e\n\u003cp\u003eWeight:  1.42 lbs ( 645g)\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuoyancy: 3 lbs\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWeight Capacity: 10 lbs\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e100% MADE IN THE USA\u003c\/p\u003e\n\u003cp\u003eIP67 Waterproof\u003c\/p\u003e\n\u003cp\u003eImpact resistant\u003c\/p\u003e\n\u003cp\u003eCompliant with airline ATA-300 \/ TSA compliant specifications\u003c\/p\u003e\n\u003cp\u003eMade to MIL-STD 810F Standards\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eUPC: 00815120021381\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e(1pc) Diffuse Reflectance Standard Calibration Target Package (T4-R50), containing 4 measured reflectance standard targets and an identification QR label. \u003c\/p\u003e\n\u003cp\u003e(2pcs) Plastic locking keys\u003c\/p\u003e\n\u003ch2\u003eAccessories \u003c\/h2\u003e\n\u003ch3\u003e\n\u003ca href=\"https:\/\/www.mapir.camera\/collections\/multispectral-reflectance-reference-calibration-targets\/products\/tripod-clip-adapter-t4-r50\" rel=\"noopener\" target=\"_blank\"\u003eTripod Clip Adapter\u003c\/a\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eEasily attach the T4-R50 to a tripod (1\/4-20) using our \u003ca href=\"https:\/\/www.mapir.camera\/products\/tripod-clip-adapter-t4-r50\" rel=\"noopener\" target=\"_blank\"\u003eTripod Clip Adapter (T4-R50)\u003c\/a\u003e. The clip securely attaches to the target housing and is easily removed with thumb tabs. No tools are required to attach the T4-R50 green housing to the black tripod clip adapter.\u003c\/p\u003e\n\u003ch3\u003e\u003ca rel=\"noopener\" href=\"https:\/\/www.mapir.camera\/collections\/multispectral-reflectance-reference-calibration-targets\/products\/t4-insert-compass-levels\" target=\"_blank\"\u003eT4 Insert: Compass \u0026amp; Levels (T4-R50X)\u003c\/a\u003e\u003c\/h3\u003e\n\u003cp\u003eThe T4 Compass \u0026amp; Levels insert provides you a visual record for the orientation of the target surfaces. Includes a spherical compass ball and perpendicular bubble levels.\u003c\/p\u003e\n\u003ch3\u003e\u003ca rel=\"noopener\" href=\"https:\/\/www.mapir.camera\/collections\/daq-m\/products\/t4-insert-daq-m-180d\" target=\"_blank\"\u003eT4 Insert: DAQ-M Frame - 180 Degrees (T4-R50X)\u003c\/a\u003e\u003c\/h3\u003e\n\u003cp\u003eThe T4 DAQ-M Frame - 180 Degrees insert provides you a mounting location for the \u003ca href=\"https:\/\/www.mapir.camera\/collections\/daq-m\/products\/daq-m\" rel=\"noopener\" target=\"_blank\"\u003eDAQ-M modular spectroradiometer light sensor\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\u003ca href=\"https:\/\/www.mapir.camera\/pages\/calibration-target-t3-capture-procedure\"\u003e\u003cbutton class=\"action_button\" type=\"submit\"\u003e\u003cspan class=\"text\"\u003eClick HERE For Instructions On Using This Target During Your Image Capturing\u003c\/span\u003e\u003c\/button\u003e\u003c\/a\u003e\u003c\/center\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\n\u003ccenter\u003e\u003ca href=\"https:\/\/www.mapir.camera\/pages\/processing-survey3-camera-images\"\u003e\u003cbutton class=\"action_button\" type=\"submit\"\u003e\u003cspan class=\"text\"\u003eClick HERE For the Full Post-Processing Calibration Workflow\u003c\/span\u003e\u003c\/button\u003e\u003c\/a\u003e\u003c\/center\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0972\/5566\/files\/MAPIR_Diffuse_Reflectance_Standard_Calibration_Target_Data_T4.xlsx?v=1741759157\"\u003e\u003cbutton class=\"action_button\" type=\"submit\"\u003e\u003cspan class=\"text\"\u003eDownload Excel Scan Data For T4 Reflectance Targets\u003c\/span\u003e\u003c\/button\u003e\u003c\/a\u003e\u003c\/center\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ccenter\u003e\n\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0878\/4732\/files\/MAPIR_Diffuse_Reflectance_Standard_Calibration_Target_Data_T4_250-2500nm.png?v=1741763142\" width=\"100%\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0878\/4732\/files\/MAPIR_Diffuse_Reflectance_Standard_Calibration_Target_Data_T4_400-1000nm.png?v=1741763142\" width=\"100%\"\u003e\n\u003c\/center\u003e\n\u003ccenter\u003e\u003cimg width=\"100%\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0878\/4732\/files\/t4-r50_drawing_w.jpg?v=1741737817\" alt=\"\"\u003e\u003c\/center\u003e\n\u003ccenter\u003e\u003cimg width=\"100%\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0878\/4732\/files\/mapir_t4-r50_clip_tripod_2_lbl_ff82ab54-eb06-4974-82f3-0ca05841baed.jpg?v=1741750307\" alt=\"\"\u003e\u003c\/center\u003e\n\u003ccenter\u003e\u003cimg width=\"100%\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0878\/4732\/files\/mapir_t4-r50_clip_tripod_3_icon_lbl.jpg?v=1741756785\" alt=\"\"\u003e\u003c\/center\u003e\n\u003ccenter\u003e\u003cimg width=\"100%\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0878\/4732\/files\/mapir_t4-r50_clip_tripod_comp.jpg?v=1741762671\" alt=\"\"\u003e\u003c\/center\u003e\n\u003ccenter\u003e\n\u003cimg width=\"100%\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0878\/4732\/files\/t4-r50-r50x_comp.png?v=1776719294\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0878\/4732\/files\/t4_insert_daq-m_2_lbl_w.jpg?v=1745368166\" width=\"100%\" alt=\"\"\u003e\n\u003c\/center\u003e\n\u003ccenter\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0878\/4732\/files\/t4_access_compass-lvl_3_lbl.jpg?v=1744398526\" width=\"100%\" alt=\"\"\u003e\u003c\/center\u003e\n\u003ccenter\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0878\/4732\/files\/t4_insert_daq-m_4_lbl_w.jpg?v=1745368630\" width=\"100%\" alt=\"\"\u003e\u003c\/center\u003e\n\u003c\/center\u003e","brand":"MAPIR","offers":[{"title":"Default Title","offer_id":44013498204248,"sku":"t4-r50x","price":500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0878\/4732\/files\/t4p-r50_1_s.jpg?v=1769064188","url":"https:\/\/www.mapir.camera\/en-gb\/products\/diffuse-reflectance-standard-calibration-target-package-t4-r50x","provider":"MAPIR CAMERA","version":"1.0","type":"link"}