Canon EOS 400D

Response

Native RGB responsemeasuredCanon Digital Rebel XTi · RAWtoACES / Weta
Hover or tap graph for values
  • red (R)
  • green (G)
  • blue (B)

Astro mode

Emission-line overlay on the active single-profile plot. Values are the source's own native samples (or a labelled linear interpolation).

About this spectrum4 notes
  • Warning: Response scope is unknown; do not interpret this response as a bare-sensor measurement. Dataset interpretation
  • Warning: Physical configuration is not documented; the response cannot be assigned to a confirmed optical configuration. Dataset interpretation
  • Warning: Normalization is unknown; amplitude comparisons are not established. Dataset interpretation
  • Warning: Uncertainty is not documented. Missing uncertainty does not mean zero uncertainty. Dataset interpretation
Source & details
Source category: measured
Primary measurement: a direct laboratory observation (or community submission recorded as measured). Not a mirror, not an estimation.
Type: measured
Measured response; measurement alone does not establish quality or confidence.
Origin: Community
Community provenance; origin does not establish measurement type, quality or confidence.
Quality: unassessed
Quality has not been assessed; no grade is inferred. Canonical release: no per-leaf scientific-quality assessment is asserted; the source-side claim is preserved verbatim.
Confidence: unassessed
Confidence has not been assessed; no confidence level is inferred. Canonical release: no claim about the per-leaf measurement precision is asserted; the upstream 'as is' wording (where present) is preserved.
Author
Weta Digital
Source
Academy / Weta RAWtoaces camera JSON bundle (link)
Source category
measured (primary measurement; not a mirror or estimation)
Methodology
Weta lightsaber rig (44 records); SciTech legacy (7 records, no equipment named); NPL double monochromator (1 record).
As-is
Samples rendered verbatim: no smoothing, no interpolation, no zero-padding, no gap bridging in the browser. Documented null sparse cells render as visible gaps.
Optical configuration
cfg-prf-academy-rawtoaces-canon-digital-rebel-xti-ea37526e8151 (unknown) — unknown
Normalisation
unknown (original: unknown)
Response unit / scale
unknown / unknown
Sample count
81 samples from 380–780 nm, Δ 5 nm
Profile ID
prf-academy-rawtoaces-canon-digital-rebel-xti-ea37526e8151@1
Profile checksum
sha256:4751d8cedf132ad8…
Processing
source_column=Canon_Digital_Rebel_XTi_380_780_5.json
Scientific notes
Canonical release: native grid and native R/G/B samples are preserved verbatim; sparse cells (wavelengths absent in the upstream CSV / JSON) are preserved as null; the parser never invents a value.
Citation
Academy Software Foundation, rawtoaces-data, pinned revision e9b8503cf8a0641f40e5345d9757bde60c15f423, 2025.
Known limitations
  • source_category=measured
  • permission_status is 'unknown' on the canonical License record (no independent operational clearance granted).

Compare measurements

Overlay up to 4 measurements on the same chart. Each path uses its native grid; no interpolation, no averaging, no merge.

Graph tools

Inspect, zoom, export, and share the current chart. Native samples only — no interpolation, no averaging.

Channels
Zoom (nm)

Also known as: Canon Digital Rebel XTi · Canon EOS 400D DIGITAL · Canon EOS DIGITAL REBEL XTi · Canon EOS Kiss Digital X · Canon Kiss Digital X · Canon 400D.

Data details
Dataset version
recovered-2026-09-29-all-available-with-ie-202404
Manifest digest
8f960e18d6c9dbef…
Manifest schema
0.1.0-draft
Release kind
full
Linked profiles / sessions
4 profile revisions
Raw samples (R/G/B at native wavelengths)
  1. prf-academy-rawtoaces-canon-digital-rebel-xti-ea37526e8151 (revision 1)

    Raw samples for prf-academy-rawtoaces-canon-digital-rebel-xti-ea37526e8151 (revision 1): R/G/B response at native wavelengths.
    λ (nm)RGB
    3800.02450.02510.0266
    3850.02190.02350.0257
    3900.01930.02180.0248
    3950.01550.01760.0216
    4000.01170.01340.0184
    4050.01110.01380.034
    4100.01050.01430.0495
    4150.01160.03340.2286
    4200.01270.05260.4077
    4250.01240.06610.507
    4300.01210.07950.6063
    4350.01330.10130.7028
    4400.01460.1230.7992
    4450.01380.13470.8179
    4500.0130.14630.8366
    4550.01440.19560.9075
    4600.01580.2450.9783
    4650.01630.30610.9023
    4700.01670.36730.8263
    4750.01570.42010.7798
    4800.01470.47290.7333
    4850.01250.46070.6448
    4900.01040.44850.5563
    4950.01040.55950.4881
    5000.01050.67050.4199
    5050.01190.72310.3468
    5100.01330.77570.2738
    5150.01550.820.2086
    5200.01770.86420.1434
    5250.0180.93210.1141
    5300.018410.0847
    5350.01560.90740.0651
    5400.01280.81480.0455
    5450.01450.78430.0375
    5500.01610.75390.0294
    5550.04240.68810.0221
    5600.06870.62230.0148
    5650.16770.57310.0124
    5700.26660.52390.01
    5750.39230.45590.009
    5800.51790.3880.008
    5850.5290.31150.0071
    5900.54010.23510.0061
    5950.52340.18210.0058
    6000.50670.1290.0055
    6050.48330.09940.0052
    6100.460.06970.0049
    6150.43080.05860.0047
    6200.40160.04750.0045
    6250.35780.040.0047
    6300.31390.03260.0048
    6350.28970.02980.0051
    6400.26550.0270.0053
    6450.22510.02360.0054
    6500.18480.02010.0056
    6550.15990.01870.0056
    6600.13510.01740.0057
    6650.11010.01580.0055
    6700.08520.01410.0053
    6750.06230.01150.0049
    6800.03950.00880.0044
    6850.02530.00730.0047
    6900.01110.00580.0051
    6950.00910.00560.005
    7000.00710.00530.0049
    7050.00620.0050.005
    7100.00520.00470.0051
    7150.00520.00490.0052
    7200.00510.0050.0052
    7250.00440.00440.0045
    7300.00380.00370.0038
    7350.00310.0030.0031
    7400.00240.00230.0024
    7450.00170.00170.0017
    7500.0010.0010.001
    7550.00110.00110.0011
    7600.00130.00130.0013
    7650.00140.00140.0014
    7700.00160.00160.0016
    7750.00170.00170.0018
    7800.00190.00190.0019
  2. prf-ie2024-canon-eos-400d-iw-occ86 (revision 1)

    Raw samples for prf-ie2024-canon-eos-400d-iw-occ86 (revision 1): R/G/B response at native wavelengths.
    λ (nm)RGB
    380000
    385000
    390000
    3950.00050.0010.0021
    4000.00180.00340.0074
    4050.00250.00530.0164
    4100.00130.0050.0406
    4150.00180.02220.1861
    4200.00280.04380.3619
    4250.00360.06150.5224
    4300.00420.07720.6547
    4350.00430.08840.6899
    4400.00440.09960.7251
    4450.0090.11990.7971
    4500.01350.14010.8691
    4550.01340.17240.8893
    4600.01330.20460.9095
    4650.01360.2750.9003
    4700.01410.35490.8838
    4750.01340.42590.8491
    4800.01250.49460.8099
    4850.01130.51230.7304
    4900.01010.52990.651
    4950.00940.5480.5547
    5000.0090.56630.4472
    5050.00940.64140.3781
    5100.00990.73080.3188
    5150.01370.86230.242
    5200.01660.96870.1711
    5250.01640.97430.1238
    5300.01620.980.0766
    5350.015610.0624
    5400.01560.9980.0498
    5450.01650.96290.0396
    5500.02370.92070.0301
    5550.05620.85010.0233
    5600.08860.77940.0166
    5650.18750.69320.0141
    5700.28630.6070.0116
    5750.36860.52790.0099
    5800.44580.45010.0084
    5850.51960.37070.0069
    5900.59350.29130.0053
    5950.59150.21920.0042
    6000.58960.14710.0031
    6050.55410.11730.0025
    6100.51870.08750.0019
    6150.48410.0680.0015
    6200.45010.05530.0012
    6250.41280.04920.0013
    6300.37560.04310.0014
    6350.34680.03880.0014
    6400.32370.03570.0015
    6450.29460.03180.0015
    6500.26290.02830.0015
    6550.22060.02590.0017
    6600.17830.02340.0019
    6650.14550.02160.0016
    6700.11310.0190.0014
    6750.08120.01510.001
    6800.05210.01130.0007
    6850.03370.00730.0006
    6900.01770.00390.0004
    6950.01130.00250.0004
    7000.00570.00140.0004
    7050.00350.0010.0003
    7100.00170.00060.0003
    7150.00120.00050.0003
    7200.00070.00040.0003
    7250.00060.00040.0003
    7300.00050.00040.0003
    7350.00050.00040.0003
    7400.00040.00040.0003
    7450.00040.00030.0003
    7500.00030.00030.0004
    7550.00040.00030.0003
    7600.00040.00030.0003
    7650.00040.00030.0003
    7700.00030.00040.0004
    7750.00040.00030.0003
    7800.00040.00030.0003
    7850.00030.00040.0004
    7900.00040.00040.0005
    7950.00050.00050.0005
    8000.00050.00050.0005
    8050.00040.00040.0004
    8100.00030.00040.0003
    8150.00030.00040.0003
    8200.00040.00040.0004
    8250.00040.00040.0004
    8300.00030.00040.0004
    8350.00030.00030.0003
    8400.00030.00030.0003
    8450.00030.00040.0003
    8500.00040.00040.0003
    8550.00040.00040.0003
    8600.00040.00040.0003
    8650.00040.00040.0003
    8700.00030.00030.0003
    8750.00040.00040.0003
    8800.00050.00040.0004
    8850.00050.00040.0004
    8900.00040.00040.0004
    8950.00040.00040.0004
    9000.00040.00040.0004
    9050.00050.00050.0005
    9100.00050.00060.0005
    9150.00050.00060.0005
    9200.00060.00060.0005
    9250.00050.00060.0005
    9300.00040.00060.0005
    9350.00040.00050.0004
    9400.00040.00040.0004
    9450.00040.00040.0003
    9500.00040.00040.0003
    9550.00030.00030.0003
    9600.00030.00030.0003
    9650.00030.00030.0003
    9700.00030.00040.0004
    9750.00040.00040.0004
    9800.00050.00040.0004
    9850.00060.00060.0005
    9900.00080.00080.0006
    9950.00080.00080.0006
    10000.00070.00070.0005
    10050.00080.00080.0006
    10100.00090.00090.0007
    10150.0010.0010.0009
    10200.0010.00090.0009
    10250.00080.00090.0009
    10300.00070.00080.0009
    10350.00080.00090.0009
    10400.0010.0010.0008
    10450.00140.00130.0013
    10500.00180.00150.0018
  3. prf-solomatov-gt-canon-400d-lebourgeois-2008-4f61cd9b21ea (revision 1)

    Raw samples for prf-solomatov-gt-canon-400d-lebourgeois-2008-4f61cd9b21ea (revision 1): R/G/B response at native wavelengths.
    λ (nm)RGB
    4000.00619480.00522940.0063119
    4100.00619480.00522940.0092456
    4200.00419040.0261430.15786
    4300.00811560.0610.50903
    4400.00804830.0988520.65066
    4500.00798230.122730.75337
    4600.00891280.182540.79721
    4700.0108420.322170.79015
    4800.0107760.472780.73521
    4900.0127050.508630.58646
    5000.0126390.635290.43672
    5100.013570.808850.275
    5200.019490.923530.14123
    5300.0194240.99830.078297
    5400.0193580.939360.049293
    5500.0172950.888410.032262
    5600.0561440.771590.02122
    5700.263630.625840.015166
    5800.529980.501050.013104
    5900.634690.321370.0080491
    6000.608680.167640.0039905
    6100.539760.093730.0029266
    6200.471840.0597370.0028593
    6300.3680.0427060.0027933
    6400.299080.0316640.0037251
    6500.255110.0296020.0036578
    6600.199170.027540.0025939
    6700.147210.0264760.0025278
    6800.0763010.0184260.0024942
    6900.0263420.00738360.0024942
    7000.00931190.00532060.0024942
  4. prf-solomatov-pred-canon-eos-400d-fcb774d448a0 (revision 1)

    Raw samples for prf-solomatov-pred-canon-eos-400d-fcb774d448a0 (revision 1): R/G/B response at native wavelengths.
    λ (nm)RGB
    4000.00212531980.00434523540.012297901
    4100.00462866430.0067826960.030688679
    4200.00539845140.013767820.07529794
    4300.0007985190.0227065890.12823132
    4400.00366279320.0304250010.16651459
    4500.0057004470.0366604630.19497803
    4600.00735288770.0498944820.21786779
    4700.007641740.077121460.226058
    4800.00980707350.1102052260.22048262
    4900.0098174480.144914420.19187722
    5000.0097363740.189284830.14775959
    5100.0129298780.240388040.10062834
    5200.0188882720.274656620.057716347
    5300.0230203270.285443040.027629262
    5400.0245902020.276941870.017027356
    5500.0306171230.25492720.011331493
    5600.0451449640.223787320.011840994
    5700.0832167340.180730490.012002022
    5800.135299250.133744020.010439592
    5900.163542170.089561150.00878534
    6000.156899680.0532288070.008621439
    6100.141771150.0271898820.008159765
    6200.119754250.015885980.005492474
    6300.100343380.0099823140.002222179
    6400.0816082950.00586945050.0000017045073
    6500.063314970.00350040170.000080551144
    6600.047230110.00422146360.000024688366
    6700.0308402660.00176732360.000014130954
    6800.0172360320.00063233320.0001933929
    6900.00680034930.00161753440.00006881793
    7000.00404450760.000565253430.00018666682