From feba17f16075328eaa1a810113bb9d54454d47f7 Mon Sep 17 00:00:00 2001 From: Andrii Ryzhkov Date: Sun, 22 Mar 2026 21:22:48 +0100 Subject: [PATCH] Noise profiles for Ricoh GR IV --- data/noiseprofiles.json | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/data/noiseprofiles.json b/data/noiseprofiles.json index 6c37409cae9f..c77c01109626 100644 --- a/data/noiseprofiles.json +++ b/data/noiseprofiles.json @@ -10671,6 +10671,46 @@ {"name": "GR IIIx iso 80000", "iso": 80000, "a": [0.00111846600144477, 0.000429720896882533, 0.000771041232148704], "b": [5.6659416691527e-06, 5.48789005018506e-06, 6.55047873444434e-06]}, {"name": "GR IIIx iso 102400", "iso": 102400, "a": [0.00181753888968045, 0.000660732578230704, 0.00126953738329831], "b": [1.75834253926439e-05, 1.59570228090725e-05, 2.00132977503631e-05]} ] + }, + { + "comment": "gr iv contributed by Andrii Ryzhkov", + "model": "GR IV", + "profiles": [ + {"name": "GR IV iso 100", "iso": 100, "a": [6.34368702628984e-06, 2.02292143686492e-06, 3.8492781765765e-06], "b": [2.87452778715577e-09, 1.76574349614349e-09, 2.79403682100198e-09]}, + {"name": "GR IV iso 125", "iso": 125, "a": [7.77885601548213e-06, 2.46027497425969e-06, 4.73824500774455e-06], "b": [3.34816645573211e-09, 2.40394763548475e-09, 3.56569332841562e-09]}, + {"name": "GR IV iso 160", "iso": 160, "a": [9.05881667468185e-06, 2.90622307432614e-06, 5.53266409740442e-06], "b": [4.12869907389499e-09, 2.91303582334412e-09, 4.35451235813164e-09]}, + {"name": "GR IV iso 200", "iso": 200, "a": [5.10510267217709e-06, 1.59260801628733e-06, 2.87236492555979e-06], "b": [1.53048575210857e-09, 1.11975248531515e-09, 1.6211750136112e-09]}, + {"name": "GR IV iso 250", "iso": 250, "a": [5.04241208683392e-06, 1.62788142813527e-06, 2.78514802270444e-06], "b": [1.81173443360266e-09, 1.21978579947582e-09, 1.74946266352362e-09]}, + {"name": "GR IV iso 320", "iso": 320, "a": [4.25635997661115e-06, 1.51039149940711e-06, 2.30261211305858e-06], "b": [1.47421574069419e-09, 1.3264098707077e-09, 1.62438172589288e-09]}, + {"name": "GR IV iso 400", "iso": 400, "a": [4.34339021346324e-06, 1.6314910403653e-06, 2.34581028392355e-06], "b": [1.70451453472243e-09, 1.56368900008414e-09, 1.8025555492157e-09]}, + {"name": "GR IV iso 500", "iso": 500, "a": [5.49935089707583e-06, 2.0450148150735e-06, 2.9581423923372e-06], "b": [2.5561018362588e-09, 2.37116915829788e-09, 2.4883773073109e-09]}, + {"name": "GR IV iso 640", "iso": 640, "a": [6.16806625218069e-06, 2.38727339289364e-06, 3.3440358360091e-06], "b": [2.23652118612772e-09, 2.09756275575435e-09, 2.43325242054686e-09]}, + {"name": "GR IV iso 800", "iso": 800, "a": [7.79825212497606e-06, 2.96380638627241e-06, 4.17010316734582e-06], "b": [1.82717550202199e-09, 1.53054111781349e-09, 1.76001867173861e-09]}, + {"name": "GR IV iso 1000", "iso": 1000, "a": [1.04883680961977e-05, 3.91531730309347e-06, 5.64582270624396e-06], "b": [2.39833682576907e-09, 2.1042538406667e-09, 2.59407574829555e-09]}, + {"name": "GR IV iso 1250", "iso": 1250, "a": [1.25180419675121e-05, 4.77578202736283e-06, 6.74888136641395e-06], "b": [2.56216828060066e-09, 2.21892531569447e-09, 2.47081613685908e-09]}, + {"name": "GR IV iso 1600", "iso": 1600, "a": [1.65369565765753e-05, 6.20202454942309e-06, 8.97869910042689e-06], "b": [3.29694268461291e-09, 2.85948337608808e-09, 3.18360433392551e-09]}, + {"name": "GR IV iso 2000", "iso": 2000, "a": [2.34333911532548e-05, 8.56782544152127e-06, 1.27805118317402e-05], "b": [4.90792988188198e-09, 4.19523495365814e-09, 4.80712246420063e-09]}, + {"name": "GR IV iso 2500", "iso": 2500, "a": [2.71905972652519e-05, 1.02610296629637e-05, 1.47139669891463e-05], "b": [4.74434757444957e-09, 3.63062977615247e-09, 4.67557023900362e-09]}, + {"name": "GR IV iso 3200", "iso": 3200, "a": [3.64816327213785e-05, 1.3413830003093e-05, 1.99010217993628e-05], "b": [7.15305941241495e-09, 6.40275634344055e-09, 7.07318530754035e-09]}, + {"name": "GR IV iso 4000", "iso": 4000, "a": [4.92673698287613e-05, 1.76109869974186e-05, 2.70653792793501e-05], "b": [8.8960008949022e-09, 6.90530738605212e-09, 8.36216177803099e-09]}, + {"name": "GR IV iso 5000", "iso": 5000, "a": [5.52908249023237e-05, 2.07251539788748e-05, 3.00814174689383e-05], "b": [9.82454071665924e-09, 7.70293485494812e-09, 8.94363972582814e-09]}, + {"name": "GR IV iso 6400", "iso": 6400, "a": [8.01994026981724e-05, 2.94331926157647e-05, 4.47153750555639e-05], "b": [1.34333055139767e-08, 8.39018888932206e-09, 1.20177605188189e-08]}, + {"name": "GR IV iso 8000", "iso": 8000, "a": [0.000108496627634404, 3.87638620099449e-05, 6.08332948897738e-05], "b": [1.91554667254526e-08, 1.16212780718045e-08, 1.6305848577955e-08]}, + {"name": "GR IV iso 10000", "iso": 10000, "a": [0.000120525788299947, 4.4850959999866e-05, 6.63753447750581e-05], "b": [2.14868729775319e-08, 1.388280043961e-08, 1.81089298789454e-08]}, + {"name": "GR IV iso 12800", "iso": 12800, "a": [0.000162928252812223, 5.91918582336569e-05, 9.05686954275866e-05], "b": [2.93670744668458e-08, 1.98622521100302e-08, 2.37049496295027e-08]}, + {"name": "GR IV iso 16000", "iso": 16000, "a": [0.000224029096835539, 7.90191706827291e-05, 0.000125555235868523], "b": [4.25471180292064e-08, 2.79995176448718e-08, 3.63817701570563e-08]}, + {"name": "GR IV iso 20000", "iso": 20000, "a": [0.000231389450723365, 8.73302857057747e-05, 0.00012687486142805], "b": [3.63876315763541e-08, 2.50106231642299e-08, 3.1013797477536e-08]}, + {"name": "GR IV iso 25600", "iso": 25600, "a": [0.000279088113852737, 0.000102637452041996, 0.00015335261417699], "b": [3.92964836330625e-08, 3.14886674608594e-08, 3.52726709401092e-08]}, + {"name": "GR IV iso 32000", "iso": 32000, "a": [0.000424259579124119, 0.000150728961125044, 0.000235395622000528], "b": [4.26758126550481e-08, 5.44214442536419e-08, 6.22994348264997e-08]}, + {"name": "GR IV iso 40000", "iso": 40000, "a": [0.000372340540552125, 0.000135777060736437, 0.000205599996292639], "b": [6.19707378297458e-08, 8.90393891925234e-08, 1.01819508085635e-07]}, + {"name": "GR IV iso 51200", "iso": 51200, "a": [0.000406338300379276, 0.000147124667478933, 0.000243439474143912], "b": [9.7853328073893e-08, 1.44322166463637e-07, 1.56347554318206e-07]}, + {"name": "GR IV iso 64000", "iso": 64000, "a": [0.000870156816538659, 0.000304787837693279, 0.000529369749614624], "b": [-6.87804398458601e-08, 4.08705829194437e-07, 3.87896959655135e-07]}, + {"name": "GR IV iso 80000", "iso": 80000, "a": [0.000829914341005418, 0.000320798178237851, 0.000495841269783492], "b": [-8.77529933211702e-08, 4.67327720151057e-07, 4.30565200305665e-07]}, + {"name": "GR IV iso 102400", "iso": 102400, "a": [0.00115413693110919, 0.000431614592877665, 0.000700591927076172], "b": [-3.74924654227483e-07, 6.1776601664425e-07, 5.21236686644466e-07]}, + {"name": "GR IV iso 128000", "iso": 128000, "a": [0.00165287397169306, 0.000602077179745324, 0.00101251767861386], "b": [-1.02736844605483e-06, 8.31851208915492e-07, 7.07592052672075e-07]}, + {"name": "GR IV iso 160000", "iso": 160000, "a": [0.00177579444485207, 0.000685949372495092, 0.00110721016120079], "b": [-1.13710104396348e-06, 1.2163609718646e-06, 1.06314852437428e-06]}, + {"name": "GR IV iso 204800", "iso": 204800, "a": [0.00251964448820731, 0.000962610331514626, 0.0016253272746388], "b": [-2.54684675992711e-06, 1.61036328122786e-06, 1.24415120319841e-06]} + ] } ] },