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A collection of transmittance spectra for optical filters and similar materials from different suppliers. We include under "filters" all semi-transparent and transparent sheets and films with homogeneous optical properties. We exclude "screens" such as nets, cloths and perforated films with heterogeneous optical properties.

Usage

filters.mspct

Format

A "filter_mspct" object containing several "filter_spct".

Details

The "filter_mspct" object named filters.mspct contains a collection of "filter_spct" objects with spectral transmittance data for filters.

The variables in each member spectrum are as follows:

  • w.length (nm)

  • Tfr (transmittance expressed as a fraction of one)

These member objects contain metadata stored as R attributes. Accessors are available to the metadata: what_measured(), how_measured(), when_measured(), filter_properties() and comment().

Note

Please see the help for the indexing vectors for specific details.

Examples

filters.mspct$Schott_UG11
#> Object: filter_spct [702 x 2]
#> Wavelength range 200-5200 nm, step 1-50 nm 
#> Label: SCHOTT UG11 1mm-thick 
#> Rfr (/1): 0.092, thickness (mm): 1.00, attenuation mode: absorption.
#> Variables:
#>  w.length: Wavelength [nm]
#>  Tfr: Internal spectral transmittance [/1] 
#> --
#> # A tibble: 702 × 2
#>    w.length     Tfr
#>       <dbl>   <dbl>
#>  1      200 0.00001
#>  2      204 0.00001
#>  3      208 0.00001
#>  4      210 0.00001
#>  5      211 0.00001
#>  6      212 0.00001
#>  7      213 0.00001
#>  8      214 0.00001
#>  9      215 0.00001
#> 10      216 0.00001
#> # ℹ 692 more rows
filters.mspct[[1]]
#> Object: filter_spct [554 x 2]
#> Wavelength range 200-1020 nm, step 1-4 nm 
#> Label: Astrophotography filter: Baader U filter 
#> Rfr (/1): NA, thickness (mm): 1.00, attenuation mode: mixed.
#> Variables:
#>  w.length: Wavelength [nm]
#>  Tfr: Total spectral transmittance [/1] 
#> --
#> # A tibble: 554 × 2
#>    w.length    Tfr
#>       <int>  <dbl>
#>  1      200 0.0001
#>  2      204 0.0001
#>  3      208 0.0001
#>  4      210 0.0001
#>  5      211 0.0001
#>  6      212 0.0001
#>  7      213 0.0001
#>  8      214 0.0001
#>  9      215 0.0001
#> 10      216 0.0001
#> # ℹ 544 more rows

what_measured(filters.mspct$Schott_UG11)
#> [1] "SCHOTT UG11 1mm-thick"
how_measured(filters.mspct$Schott_UG11)
#> [1] "Numerical data from supplier."
filter_properties(filters.mspct$Schott_UG11)
#> Rfr (/1): 0.092, thickness (mm): 1.00, attenuation mode: absorption.
cat(comment(filters.mspct$Schott_UG11))
#> SCHOTT filter 'UG11' data, reference thickness (m): 0.001 and reflectance factor: 0.908
#>  (c) copyright SCHOTT, reproduced with permission.

names(filters.mspct)
#>   [1] "Baader_U_filter_1.0mm_48mm"              
#>   [2] "BPI_Luminance"                           
#>   [3] "BPI_Solatrol"                            
#>   [4] "BW_007_Clear_MRC_nano_1.2mm_46mm"        
#>   [5] "Courtaulds_CA_115um"                     
#>   [6] "Courtaulds_CA_115um_age000"              
#>   [7] "Courtaulds_CA_115um_age020"              
#>   [8] "Courtaulds_CA_115um_age030"              
#>   [9] "Courtaulds_CA_115um_age060"              
#>  [10] "Courtaulds_CA_115um_age100"              
#>  [11] "Courtaulds_CA_115um_age180"              
#>  [12] "Courtaulds_CA_115um_age300"              
#>  [13] "Courtaulds_CA_250um"                     
#>  [14] "Courtaulds_CA_480um"                     
#>  [15] "Evonik_Cherry_3C01_GT"                   
#>  [16] "Evonik_Clear_0A000_XT"                   
#>  [17] "Evonik_Clear_0F00_GT"                    
#>  [18] "Evonik_Clear_2458_GT"                    
#>  [19] "Evonik_Clear_UV_100_0A570_GT"            
#>  [20] "Evonik_Orange_2C04_GT"                   
#>  [21] "Evonik_Sky_Blue_5C01_GT"                 
#>  [22] "Evonik_Solar_Clear_0Z023_GT"             
#>  [23] "Evonik_Yellow_1C33_GT"                   
#>  [24] "Firecrest_CPL_2.2mm_52mm"                
#>  [25] "Firecrest_IRND15_MC_0.79mm_62mm"         
#>  [26] "Firecrest_ND12_1.1mm_52mm"               
#>  [27] "Firecrest_ND12_2.0mm_67x85mm"            
#>  [28] "Firecrest_ND18_1.2mm_52mm"               
#>  [29] "Firecrest_UV400_1.0mm_72mm"              
#>  [30] "Firecrest_UV400_1.1mm_46mm"              
#>  [31] "Firecrest_UV400_1.1mm_49mm"              
#>  [32] "Firecrest_UV400_1.2mm_52mm"              
#>  [33] "Firecrest_UV400_1.2mm_62mm"              
#>  [34] "Firecrest_UV400_1.2mm_72mm"              
#>  [35] "Firecrest_UV400_1.2mm_77mm"              
#>  [36] "Firecrest_UVIR_Cut_0.96mm_52mm"          
#>  [37] "Firecrest_UVIR_Cut_1.2mm_46mm"           
#>  [38] "Foiltek_Clear_PC"                        
#>  [39] "Foiltek_Clear_PET_G"                     
#>  [40] "Foiltek_Clear_PS"                        
#>  [41] "Foiltek_Clear_PVC"                       
#>  [42] "Fotga_UVIR_CUT_0.54mm_52mm"              
#>  [43] "Fotga_UVIR_CUT_0.54mm_72mm"              
#>  [44] "glass_nn"                                
#>  [45] "Haida_Clear_Night_NanoPro_1.6mm_52mm"    
#>  [46] "Haida_IR720_NanoPro_1.7mm_62mm"          
#>  [47] "Heliopan_BG38_2.3mm_46mm"                
#>  [48] "Heliopan_Orange_22_SH_PMC_2.2mm_52mm"    
#>  [49] "Heliopan_Red_25_SH_PMC_2.2mm_30.5mm"     
#>  [50] "Heliopan_RG665_2.3mm_46mm"               
#>  [51] "Heliopan_RG695_2.2mm_46mm"               
#>  [52] "Heliopan_RG695_2.2mm_52mm"               
#>  [53] "Heliopan_RG780_2.3mm_46mm"               
#>  [54] "Heliopan_RG780_2.3mm_52mm"               
#>  [55] "Heliopan_UVIR_CUT_Digital_2.2mm_52mm"    
#>  [56] "Heliopan_Yellow_5_SH_PMC_2.3mm_52mm"     
#>  [57] "Hitech_ND_06_HL_1.75mm_85x110mm"         
#>  [58] "Hitech_ND_09_HL_1.75mm_85x110mm"         
#>  [59] "Hoya_25A_HMC_2.3mm_52mm"                 
#>  [60] "Hoya_82A_HMC_2.1mm_52mm"                 
#>  [61] "Hoya_C12_HMC"                            
#>  [62] "Hoya_C2_HMC"                             
#>  [63] "Hoya_C4_HMC"                             
#>  [64] "Hoya_C8_HMC"                             
#>  [65] "Hoya_CIRPL_HD_2.4mm_62mm"                
#>  [66] "Hoya_FL_DAY_HMC"                         
#>  [67] "Hoya_FL_W_HMC"                           
#>  [68] "Hoya_HD_CIR_PL_2.4mm_67mm"               
#>  [69] "Hoya_Protector_HD_2.0mm_52mm"            
#>  [70] "Hoya_Protector_HD_2.1mm_72mm"            
#>  [71] "Hoya_Protector_HD_old_TTmm_NA"           
#>  [72] "Hoya_R72_2.4mm_52mm"                     
#>  [73] "Hoya_Skylight_1B_3.0mm_67mm"             
#>  [74] "Hoya_UV0_HMC_2.0mm_52mm"                 
#>  [75] "Hoya_UV0_HMC_Super_2.0mm_52mm"           
#>  [76] "Hoya_W10_HMC"                            
#>  [77] "Hoya_W12_HMC"                            
#>  [78] "Hoya_W2_HMC"                             
#>  [79] "Hoya_W4_HMC"                             
#>  [80] "Hoya_Y_(K2)_HMC_2.3mm_52mm"              
#>  [81] "IPLUS"                                   
#>  [82] "ISOPAL"                                  
#>  [83] "JIS_Z8902"                               
#>  [84] "KenFaith_CPL_K_HMC_1.6mm_72mm"           
#>  [85] "Kenko_UV_fake_1.9mm_30.5mm"              
#>  [86] "KnightX_HD_MCUV_1.1mm_72mm"              
#>  [87] "KnightX_ND16_resin_1.8mm_52mm"           
#>  [88] "KnightX_ND4_resin_1.7mm_72mm"            
#>  [89] "KnightX_ND8_resin_1.9mm_72mm"            
#>  [90] "Kolari_UVIR_Cut_specs"                   
#>  [91] "Lee_Dark_Blue_119"                       
#>  [92] "Lee_ND0.15_298"                          
#>  [93] "Lee_ND0.60_210"                          
#>  [94] "Lee_ND1.20_299"                          
#>  [95] "Lee_Orange_105"                          
#>  [96] "Lee_Regal_Blue_199"                      
#>  [97] "Lee_Yellow_101"                          
#>  [98] "Macrolife_Clear_PC_UV"                   
#>  [99] "McDermit_PET_Autostat_CT5_125um"         
#> [100] "MIDOPT_AB555"                            
#> [101] "MIDOPT_AC370"                            
#> [102] "MIDOPT_AC380"                            
#> [103] "MIDOPT_AC405"                            
#> [104] "MIDOPT_AC685"                            
#> [105] "MIDOPT_AC760"                            
#> [106] "MIDOPT_AC800"                            
#> [107] "MIDOPT_AC850"                            
#> [108] "MIDOPT_AC900"                            
#> [109] "MIDOPT_Bi405"                            
#> [110] "MIDOPT_Bi440"                            
#> [111] "MIDOPT_Bi450"                            
#> [112] "MIDOPT_Bi518"                            
#> [113] "MIDOPT_Bi520"                            
#> [114] "MIDOPT_Bi550"                            
#> [115] "MIDOPT_Bi615"                            
#> [116] "MIDOPT_Bi632"                            
#> [117] "MIDOPT_Bi650"                            
#> [118] "MIDOPT_Bi660"                            
#> [119] "MIDOPT_Bi685"                            
#> [120] "MIDOPT_Bi725"                            
#> [121] "MIDOPT_Bi780"                            
#> [122] "MIDOPT_Bi808"                            
#> [123] "MIDOPT_Bi830"                            
#> [124] "MIDOPT_Bi850"                            
#> [125] "MIDOPT_Bi880"                            
#> [126] "MIDOPT_Bi905"                            
#> [127] "MIDOPT_BN470"                            
#> [128] "MIDOPT_BN485"                            
#> [129] "MIDOPT_BN490"                            
#> [130] "MIDOPT_BN532"                            
#> [131] "MIDOPT_BN535"                            
#> [132] "MIDOPT_BN595"                            
#> [133] "MIDOPT_BN630"                            
#> [134] "MIDOPT_BN650"                            
#> [135] "MIDOPT_BN660"                            
#> [136] "MIDOPT_BN740"                            
#> [137] "MIDOPT_BN785"                            
#> [138] "MIDOPT_BN810"                            
#> [139] "MIDOPT_BN840"                            
#> [140] "MIDOPT_BN850"                            
#> [141] "MIDOPT_BN880"                            
#> [142] "MIDOPT_BN940"                            
#> [143] "MIDOPT_BP250"                            
#> [144] "MIDOPT_BP324"                            
#> [145] "MIDOPT_BP365"                            
#> [146] "MIDOPT_BP470"                            
#> [147] "MIDOPT_BP485"                            
#> [148] "MIDOPT_BP500"                            
#> [149] "MIDOPT_BP505"                            
#> [150] "MIDOPT_BP525"                            
#> [151] "MIDOPT_BP550"                            
#> [152] "MIDOPT_BP590"                            
#> [153] "MIDOPT_BP635"                            
#> [154] "MIDOPT_BP660"                            
#> [155] "MIDOPT_BP695"                            
#> [156] "MIDOPT_BP735"                            
#> [157] "MIDOPT_BP800"                            
#> [158] "MIDOPT_BP810"                            
#> [159] "MIDOPT_BP845"                            
#> [160] "MIDOPT_BP850"                            
#> [161] "MIDOPT_BP865"                            
#> [162] "MIDOPT_BP880"                            
#> [163] "MIDOPT_DB395_870"                        
#> [164] "MIDOPT_DB475_850"                        
#> [165] "MIDOPT_DB550_850"                        
#> [166] "MIDOPT_DB660_850"                        
#> [167] "MIDOPT_DB735"                            
#> [168] "MIDOPT_DB850"                            
#> [169] "MIDOPT_DB940"                            
#> [170] "MIDOPT_FL550"                            
#> [171] "MIDOPT_LA080"                            
#> [172] "MIDOPT_LA120"                            
#> [173] "MIDOPT_LB080"                            
#> [174] "MIDOPT_LB120"                            
#> [175] "MIDOPT_LP1000"                           
#> [176] "MIDOPT_LP285"                            
#> [177] "MIDOPT_LP330"                            
#> [178] "MIDOPT_LP390"                            
#> [179] "MIDOPT_LP415"                            
#> [180] "MIDOPT_LP470"                            
#> [181] "MIDOPT_LP500"                            
#> [182] "MIDOPT_LP515"                            
#> [183] "MIDOPT_LP530"                            
#> [184] "MIDOPT_LP550"                            
#> [185] "MIDOPT_LP580"                            
#> [186] "MIDOPT_LP590"                            
#> [187] "MIDOPT_LP610"                            
#> [188] "MIDOPT_LP630"                            
#> [189] "MIDOPT_LP645"                            
#> [190] "MIDOPT_LP665"                            
#> [191] "MIDOPT_LP695"                            
#> [192] "MIDOPT_LP715"                            
#> [193] "MIDOPT_LP780"                            
#> [194] "MIDOPT_LP800"                            
#> [195] "MIDOPT_LP815"                            
#> [196] "MIDOPT_LP830"                            
#> [197] "MIDOPT_LP850"                            
#> [198] "MIDOPT_LP900"                            
#> [199] "MIDOPT_LP920"                            
#> [200] "MIDOPT_ND030"                            
#> [201] "MIDOPT_ND060"                            
#> [202] "MIDOPT_ND090"                            
#> [203] "MIDOPT_ND120"                            
#> [204] "MIDOPT_ND200"                            
#> [205] "MIDOPT_ND300"                            
#> [206] "MIDOPT_ND400"                            
#> [207] "MIDOPT_NF550"                            
#> [208] "MIDOPT_Ni030"                            
#> [209] "MIDOPT_Ni060"                            
#> [210] "MIDOPT_Ni090"                            
#> [211] "MIDOPT_Ni120"                            
#> [212] "MIDOPT_PE530"                            
#> [213] "MIDOPT_SP510"                            
#> [214] "MIDOPT_SP570"                            
#> [215] "MIDOPT_SP585"                            
#> [216] "MIDOPT_SP625"                            
#> [217] "MIDOPT_SP635"                            
#> [218] "MIDOPT_SP644"                            
#> [219] "MIDOPT_SP645"                            
#> [220] "MIDOPT_SP650"                            
#> [221] "MIDOPT_SP675"                            
#> [222] "MIDOPT_SP700"                            
#> [223] "MIDOPT_SP701"                            
#> [224] "MIDOPT_SP705"                            
#> [225] "MIDOPT_SP730"                            
#> [226] "MIDOPT_TB475_550_850"                    
#> [227] "MIDOPT_TB550_660_850"                    
#> [228] "Nisi_BlackMist18_2.1mm_72mm"             
#> [229] "no_brand_PC_dome2"                       
#> [230] "Pilkington_4007"                         
#> [231] "Pilkington_9817"                         
#> [232] "Pilkington_Active"                       
#> [233] "Planibel_4201"                           
#> [234] "Planibel_4201b"                          
#> [235] "Planibel_4204"                           
#> [236] "PPG_5075"                                
#> [237] "PPG5076"                                 
#> [238] "PS_Sterilin101"                          
#> [239] "PS_Sterilin109"                          
#> [240] "Purshee_JB450_2.1mm_30.5mm"              
#> [241] "Purshee_QB21_2.0mm_30.5mm"               
#> [242] "Rocolax_UVIR_Cut_445nm_650nm_1.1mm_52mm" 
#> [243] "Rocolax_UVIR_Cut_PRO_HD_(W)_1.1mm_30.5mm"
#> [244] "Rocolax_UVIR_Cut_PRO_HD_(W)_1.1mm_52mm"  
#> [245] "Rosco_Canary_Supergel_no312"             
#> [246] "Rosco_Canary_Supergel_no312_used"        
#> [247] "Rosco_Clear_00_not_current"              
#> [248] "Rosco_Grey_Cinegel_no97_0.05mm_NA"       
#> [249] "Rosco_Grey_Cinegel_no98_0.05mm_NA"       
#> [250] "Rosco_Moss_Green_EColour_no89"           
#> [251] "Rosco_Moss_Green_EColour_no89_used"      
#> [252] "Rosco_ND_Ecolour_no209_0.075mm_NA"       
#> [253] "Rosco_ND_EColour_no210_0.075mm_NA"       
#> [254] "Rosco_ND_EColour_no211_0.075mm_NA"       
#> [255] "Rosco_Neon_Pink_Supergel_no343_used"     
#> [256] "Rosco_UV_filter_EColour_no226"           
#> [257] "Rosco_UV_filter_EColour_no226_used"      
#> [258] "Sample_1"                                
#> [259] "Sample_2"                                
#> [260] "Schott_BG18"                             
#> [261] "Schott_BG25"                             
#> [262] "Schott_BG3"                              
#> [263] "Schott_BG36"                             
#> [264] "Schott_BG38"                             
#> [265] "Schott_BG39"                             
#> [266] "Schott_BG40"                             
#> [267] "Schott_BG42"                             
#> [268] "Schott_BG50"                             
#> [269] "Schott_BG55"                             
#> [270] "Schott_BG60"                             
#> [271] "Schott_BG60HT"                           
#> [272] "Schott_BG61"                             
#> [273] "Schott_BG62"                             
#> [274] "Schott_BG62HS"                           
#> [275] "Schott_BG62HT"                           
#> [276] "Schott_BG63"                             
#> [277] "Schott_BG64"                             
#> [278] "Schott_BG66HS"                           
#> [279] "Schott_BG67"                             
#> [280] "Schott_BG7"                              
#> [281] "Schott_GG395"                            
#> [282] "Schott_GG400"                            
#> [283] "Schott_GG420"                            
#> [284] "Schott_GG435"                            
#> [285] "Schott_GG455"                            
#> [286] "Schott_GG475"                            
#> [287] "Schott_GG495"                            
#> [288] "Schott_KG1"                              
#> [289] "Schott_KG2"                              
#> [290] "Schott_KG3"                              
#> [291] "Schott_KG5"                              
#> [292] "Schott_N_WG280"                          
#> [293] "Schott_N_WG295"                          
#> [294] "Schott_N_WG305"                          
#> [295] "Schott_N_WG320"                          
#> [296] "Schott_NG1"                              
#> [297] "Schott_NG11"                             
#> [298] "Schott_NG3"                              
#> [299] "Schott_NG4"                              
#> [300] "Schott_NG5"                              
#> [301] "Schott_NG9"                              
#> [302] "Schott_OG515"                            
#> [303] "Schott_OG530"                            
#> [304] "Schott_OG550"                            
#> [305] "Schott_OG570"                            
#> [306] "Schott_OG590"                            
#> [307] "Schott_RG1000"                           
#> [308] "Schott_RG610"                            
#> [309] "Schott_RG630"                            
#> [310] "Schott_RG645"                            
#> [311] "Schott_RG665"                            
#> [312] "Schott_RG695"                            
#> [313] "Schott_RG715"                            
#> [314] "Schott_RG780"                            
#> [315] "Schott_RG830"                            
#> [316] "Schott_RG850"                            
#> [317] "Schott_RG9"                              
#> [318] "Schott_S_8022"                           
#> [319] "Schott_S_8023"                           
#> [320] "Schott_S_8612"                           
#> [321] "Schott_UG1"                              
#> [322] "Schott_UG11"                             
#> [323] "Schott_UG2A"                             
#> [324] "Schott_UG5"                              
#> [325] "Schott_VG20"                             
#> [326] "Schott_VG9"                              
#> [327] "Starphire_5001"                          
#> [328] "Starphire_5002"                          
#> [329] "Starphire_5003"                          
#> [330] "Starphire_5004"                          
#> [331] "Starphire_5005"                          
#> [332] "Starphire_5006"                          
#> [333] "Starphire_5007"                          
#> [334] "Starphire_5070"                          
#> [335] "Starphire_5071"                          
#> [336] "Starphire_5072"                          
#> [337] "Tangsinuo_HB650_2.1mm_52mm"              
#> [338] "Tangsinuo_JB450_2.0mm_52mm"              
#> [339] "Tangsinuo_QB21AR_1.7mm_30.5mm"           
#> [340] "Tangsinuo_QB21AR_2.0mm_52mm"             
#> [341] "Tangsinuo_QB21AR_2.1mm_72mm"             
#> [342] "Tangsinuo_TSN575_2.0mm_52mm"             
#> [343] "Tangsinuo_Venus_2mm_30.5mm"              
#> [344] "Tangsinuo_ZB1_2.0mm_52mm"                
#> [345] "Tangsinuo_ZB2_2.0mm_52mm"                
#> [346] "Tangsinuo_ZWB1_1.6mm_67mm"               
#> [347] "Tangsinuo_ZWB1_2.1mm_52mm"               
#> [348] "Tangsinuo_ZWB1_3.1mm_30.5mm"             
#> [349] "Tangsinuo_ZWB1_QB21AR_stack_2mm2mm_52mm" 
#> [350] "Tangsinuo_ZWB1_TSN575_stack_2mm2mm_52mm" 
#> [351] "Tangsinuo_ZWB2_2.0mm_52mm"               
#> [352] "Tangsinuo_ZWB2_3.1mm_30.5mm"             
#> [353] "Tangsinuo_ZWB2_QB21AR_stack_2mm2mm_52mm" 
#> [354] "Tangsinuo_ZWB2_TSN575_stack_2mm2mm_52mm" 
#> [355] "Tangsinuo_ZWB2b_2.0mm_52mm"              
#> [356] "Tangsinuo_ZWB3_2.2mm_52mm"               
#> [357] "Thingyfy_MC_UV_0.7mm_58mm"               
#> [358] "Tiffen_Haze_2A_2.1mm_62mm"               
#> [359] "Tiffen_Haze_2A_2.6mm_49mm"               
#> [360] "Tiffen_Haze_2A_2.6mm_52mm"               
#> [361] "Unbranded_Clear_LD_PE_50um"              
#> [362] "Unbranded_Clear_LD_PE_50um_used"         
#> [363] "Unbranded_UV_Aliexpress_1.1mm_72mm"      
#> [364] "UQG_Blue_dichroic_CDB"                   
#> [365] "UQG_GG400_3mm"                           
#> [366] "UQG_Green_dichroic_CDG"                  
#> [367] "UQG_Magenta_dichroic_CDM"                
#> [368] "UQG_UG1_2mm"                             
#> [369] "UQG_UV_Blocking_UVK"                     
#> [370] "UQG_WG295_2mm"                           
#> [371] "UVROptics_StraightEdgeU_Mk_I_5.0mm_52mm" 
#> [372] "Vitro_414"                               
#> [373] "Vitro_415"                               
#> [374] "Vitro_416"                               
#> [375] "XL_Horticulture_Multilux"                
#> [376] "XL_Horticulture_Superblue"               
#> [377] "XL_Horticulture_Supergreen"              
#> [378] "Zeiss_UV_Tstar_2.0mm_52mm"               
#> [379] "Zomei_IR680_2.1mm_30.5mm"                
#> [380] "Zomei_IR680_2.1mm_52mm"                  
#> [381] "Zomei_IR720_2.0mm_72mm"                  
#> [382] "Zomei_IR720_2.1mm_30.5mm"                
#> [383] "Zomei_IR760_2.0mm_52mm"                  
#> [384] "Zomei_IR760_2.1mm_30.5mm"                
#> [385] "Zomei_IR850_2.0mm_72mm"                  
#> [386] "Zomei_IR850_2.1mm_52mm"                  
#> [387] "Zomei_IR950_TTmm_52mm"                   
#> [388] "Zomei_ND09_Pro_II_MC_1.2mm_52mm"         
#> [389] "Zomei_ND8_Resin_1.7mm_52mm"