Canon EOS 20D
Response
- 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
- Image Engineering GmbH & Co. KG
- Source
- Image Engineering spectral sensitivities workbook (April 2024) (link)
- Source category
measured(primary measurement; not a mirror or estimation)- 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-ie2024-canon-eos-20d-e-occ2(unknown) — unknown- Normalisation
- unknown (original: unknown)
- Response unit / scale
unknown/unknown- Sample count
- 135 samples from 380–1050 nm, Δ 5 nm
- Profile ID
prf-ie2024-canon-eos-20d-e-occ2@1- Profile checksum
sha256:ff28d2637c809a5a…- Processing
- source_column=E
- 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
- Image Engineering GmbH & Co. KG, Spectral sensitivities workbook (April 2024).
- 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 20D.
Data details
- Dataset version
recovered-2026-10-01-siril-source-review-v2- Manifest digest
6493790d2d6b6b68…- Manifest schema
0.1.0-draft- Release kind
full- Linked profiles / sessions
- 5 profile revisions
Raw samples (R/G/B at native wavelengths)
prf-ie2024-canon-eos-20d-e-occ2(revision 1)Raw samples for prf-ie2024-canon-eos-20d-e-occ2 (revision 1): R/G/B response at native wavelengths. λ (nm) R G B 380 0.0129060903 0.0171350278 0.0112933795 385 0.0115529746 0.0155364516 0.0114942225 390 0.0101998589 0.0139378754 0.0116950655 395 0.01075746 0.0182174868 0.0146423314 400 0.011315061 0.0224970983 0.0175895974 405 0.0093117207 0.0158939889 0.0154346851 410 0.0066681451 0.0065701994 0.0120042283 415 0.0122775453 0.0127451661 0.0941807854 420 0.0175403182 0.0205312835 0.1908812324 425 0.0214165825 0.0347620034 0.3456772393 430 0.0252928467 0.0489927233 0.5004732462 435 0.02239813 0.0633016831 0.6062641213 440 0.014989426 0.0776628029 0.6793849083 445 0.0107276851 0.0963893129 0.7351156786 450 0.00892552 0.1135175798 0.7786734269 455 0.0096326074 0.126611461 0.8104928987 460 0.0100619976 0.143144787 0.8382749357 465 0.0093805992 0.1734358924 0.8499072336 470 0.0086992008 0.2037269979 0.8615395316 475 0.0092715663 0.273164064 0.8475598852 480 0.0098439317 0.3426011302 0.8335802389 485 0.0111380403 0.413980522 0.7811662204 490 0.012913311 0.4866547976 0.7031292871 495 0.015710026 0.5802639928 0.608332154 500 0.0215656204 0.6753610723 0.5150922989 505 0.0316264922 0.7648393835 0.4304734358 510 0.0416873639 0.8543176946 0.3458545728 515 0.0617464764 0.9350871455 0.2767645774 520 0.0835230946 0.9862906801 0.2121799253 525 0.1078759718 0.99314534 0.1543532883 530 0.1322288489 1 0.0965266512 535 0.1382061261 0.9941993113 0.0771319885 540 0.1441834033 0.9883986226 0.0577373258 545 0.1252728914 0.9341514 0.0425989316 550 0.1330942192 0.88420423 0.0316383502 555 0.1587367734 0.8371237619 0.0234629773 560 0.1843793276 0.7900432938 0.0152876044 565 0.2454608386 0.7279098238 0.0127585047 570 0.3065423496 0.6657763539 0.0102294051 575 0.3862739241 0.5852779362 0.0086906338 580 0.4638269166 0.501884731 0.0074700744 585 0.514015517 0.4252773237 0.0065320344 590 0.5642041174 0.3486699165 0.0055939944 595 0.5835613317 0.2740609216 0.0047089542 600 0.5952106994 0.1999515297 0.0038371638 605 0.5688236395 0.15197557 0.0033630383 610 0.5424365796 0.1039996103 0.0028889127 615 0.5135445311 0.0738446052 0.0025296024 620 0.4820053202 0.0571627323 0.0022949767 625 0.4465574293 0.0468508424 0.002252915 630 0.4117628202 0.0375712464 0.0022351687 635 0.3795813382 0.0324208261 0.0023146841 640 0.3473998561 0.0272704057 0.0023941995 645 0.3172738733 0.0234996018 0.0027167922 650 0.2876617654 0.0200737021 0.0031001542 655 0.2468108813 0.0179667059 0.0033274465 660 0.2081838632 0.016405455 0.0033501601 665 0.172892644 0.0156628219 0.0030660056 670 0.1362674665 0.0143984311 0.0027511519 675 0.0943064554 0.011047009 0.0023135012 680 0.0554439025 0.0077814509 0.0018779277 685 0.0289751825 0.0048593489 0.0014506633 690 0.0148210327 0.0033339877 0.0013817114 695 0.0088765963 0.002739787 0.0015516344 700 0.00293216 0.0021455863 0.0017215574 705 0.0025266817 0.0019998352 0.0016520245 710 0.002191776 0.001876979 0.0016296094 715 0.0021391606 0.0018457027 0.0017956651 720 0.0020590392 0.0018376334 0.0019486126 725 0.001868893 0.0019223917 0.002049127 730 0.0017092735 0.0019827581 0.0021105638 735 0.0016717605 0.001945557 0.00201569 740 0.0016726899 0.0019557264 0.0019606555 745 0.0018273886 0.0021553776 0.0020649782 750 0.0019820873 0.0023550288 0.002169301 755 0.0019913052 0.0022447105 0.0023102137 760 — — — 765 — — — 770 — — — 775 — — — 780 — — — 785 — — — 790 — — — 795 — — — 800 — — — 805 — — — 810 — — — 815 — — — 820 — — — 825 — — — 830 — — — 835 — — — 840 — — — 845 — — — 850 — — — 855 — — — 860 — — — 865 — — — 870 — — — 875 — — — 880 — — — 885 — — — 890 — — — 895 — — — 900 — — — 905 — — — 910 — — — 915 — — — 920 — — — 925 — — — 930 — — — 935 — — — 940 — — — 945 — — — 950 — — — 955 — — — 960 — — — 965 — — — 970 — — — 975 — — — 980 — — — 985 — — — 990 — — — 995 — — — 1000 — — — 1005 — — — 1010 — — — 1015 — — — 1020 — — — 1025 — — — 1030 — — — 1035 — — — 1040 — — — 1045 — — — 1050 — — — prf-jiang-intake-canon-20d(revision 1)Raw samples for prf-jiang-intake-canon-20d (revision 1): R/G/B response at native wavelengths. λ (nm) R G B 400 0.0012373 0.001769 0.0042219 410 0.0030106 0.002598 0.014449 420 0.011758 0.012201 0.10198 430 0.025271 0.048114 0.4902 440 0.010475 0.06259 0.56697 450 0.0049324 0.10033 0.68024 460 0.0037963 0.1265 0.76452 470 0.0036845 0.17166 0.77047 480 0.005474 0.31169 0.76653 490 0.0078774 0.45374 0.63452 500 0.01422 0.624 0.48636 510 0.033682 0.83267 0.35011 520 0.066095 0.87769 0.17535 530 0.12261 1 0.092933 540 0.13197 0.89233 0.051083 550 0.10957 0.91122 0.031774 560 0.135 0.74353 0.014149 570 0.27359 0.67042 0.0096536 580 0.43435 0.5035 0.0069416 590 0.57273 0.36099 0.0052074 600 0.58401 0.20583 0.0031756 610 0.55905 0.1099 0.0025481 620 0.4565 0.054814 0.0022039 630 0.41415 0.038684 0.0024109 640 0.31124 0.025423 0.0019002 650 0.27841 0.020145 0.0025228 660 0.19971 0.015219 0.0028168 670 0.11555 0.011671 0.0020036 680 0.020638 0.0030243 0.00045075 690 0.0060597 0.0012578 0.00018058 700 0.0017974 0.00047442 0.00010512 710 0.00047773 0.00015524 0.000089203 720 0.000199 0.000087066 0.000081775 prf-sobotka-ref-canon20d-50c7cff4bf8d(revision 1)Raw samples for prf-sobotka-ref-canon20d-50c7cff4bf8d (revision 1): R/G/B response at native wavelengths. λ (nm) R G B 400 0.00123732614780658 0.0017689756505322094 0.004221882319646133 410 0.0030105779647738888 0.002597979493579758 0.01444894194057024 420 0.011758147882834623 0.012200639124606593 0.10197793912003048 430 0.025270696631435476 0.04811364493625671 0.49019827106952646 440 0.010475189819521611 0.06258952078976898 0.5669668459302425 450 0.004932432161399141 0.10032719150570843 0.6802395199894429 460 0.0037962575777654725 0.12649716518382487 0.7645235638207107 470 0.003684530577593311 0.17165609220392564 0.770470700381314 480 0.005473963678554695 0.3116852918436243 0.7665304073864692 490 0.00787737208710508 0.45373674373158 0.6345194965866868 500 0.014220071905139109 0.6239998842051115 0.48635845915407727 510 0.03368241390359644 0.832668888074802 0.3501065448049819 520 0.0660953973774142 0.877692427549788 0.17535451337696312 530 0.12261092061706877 1 0.09293254253634531 540 0.13196832881287784 0.8923302581171827 0.051082652958944125 550 0.10956965521216205 0.9112170319858559 0.031774288210368117 560 0.13500251366772364 0.7435315590692451 0.014149227524352713 570 0.2735908000175589 0.6704160108804234 0.009653566964009822 580 0.43434629511702544 0.5034985193521521 0.006941615054253055 590 0.5727260624135023 0.3609865726436056 0.00520737645447195 600 0.5840133616928711 0.20582694412059152 0.003175552649597001 610 0.5590546708982383 0.1098968636957428 0.002548125944474161 620 0.45650483857521473 0.05481448002549363 0.0022038789998423645 630 0.41415165325385145 0.03868414037859461 0.0024108622720604845 640 0.3112383839730605 0.025423259950706312 0.00190022955236947 650 0.27840800052638137 0.020144807316332645 0.002522822345102698 660 0.19970562981558357 0.015219367734415757 0.0028167509254721315 670 0.11555185529911782 0.011670862489144581 0.002003612927131853 680 0.02063838008961757 0.0030243015121379406 0.00045074526048996565 690 0.006059736058600051 0.0012578229612069287 0.00018058335231120232 700 0.0017973785862490973 0.00047441915677970447 0.00010512399766206649 710 0.0004777316311032502 0.00015523778094751636 0.00008920261387899846 720 0.00019899980949757615 0.00008706582014550067 0.00008177452720848129 prf-solomatov-gt-canon-20d-jiang-et-al-2013-a90fcb3103c7(revision 1)Raw samples for prf-solomatov-gt-canon-20d-jiang-et-al-2013-a90fcb3103c7 (revision 1): R/G/B response at native wavelengths. λ (nm) R G B 400 0.0012373 0.001769 0.0042219 410 0.0030106 0.002598 0.014449 420 0.011758 0.012201 0.10198 430 0.025271 0.048114 0.4902 440 0.010475 0.06259 0.56697 450 0.0049324 0.10033 0.68024 460 0.0037963 0.1265 0.76452 470 0.0036845 0.17166 0.77047 480 0.005474 0.31169 0.76653 490 0.0078774 0.45374 0.63452 500 0.01422 0.624 0.48636 510 0.033682 0.83267 0.35011 520 0.066095 0.87769 0.17535 530 0.12261 1 0.092933 540 0.13197 0.89233 0.051083 550 0.10957 0.91122 0.031774 560 0.135 0.74353 0.014149 570 0.27359 0.67042 0.0096536 580 0.43435 0.5035 0.0069416 590 0.57273 0.36099 0.0052074 600 0.58401 0.20583 0.0031756 610 0.55905 0.1099 0.0025481 620 0.4565 0.054814 0.0022039 630 0.41415 0.038684 0.0024109 640 0.31124 0.025423 0.0019002 650 0.27841 0.020145 0.0025228 660 0.19971 0.015219 0.0028168 670 0.11555 0.011671 0.0020036 680 0.020638 0.0030243 0.00045075 690 0.0060597 0.0012578 0.00018058 700 0.0017974 0.00047442 0.00010512 prf-solomatov-pred-canon-eos-20d-f5568ad9ff2b(revision 1)Raw samples for prf-solomatov-pred-canon-eos-20d-f5568ad9ff2b (revision 1): R/G/B response at native wavelengths. λ (nm) R G B 400 0.0018463086 0.0043655476 0.013321864 410 0.0031545837 0.006336434 0.03374136 420 0.0048175994 0.011893153 0.08034376 430 0.0036105276 0.020395907 0.13218312 440 0.007969303 0.026441501 0.17197484 450 0.008707123 0.02940666 0.20353468 460 0.008233249 0.040659834 0.22597273 470 0.005466824 0.06816453 0.23005897 480 0.0036855976 0.102333285 0.21696557 490 0.0035637615 0.14054485 0.17944267 500 0.0048995335 0.18875314 0.13143608 510 0.010184712 0.2429848 0.08436789 520 0.018012406 0.27878457 0.04778633 530 0.024401302 0.29100314 0.024227967 540 0.02740061 0.28204212 0.017755805 550 0.033067815 0.26021922 0.013849367 560 0.043716457 0.22803763 0.012864662 570 0.07493561 0.18276379 0.010974738 580 0.12304598 0.13210098 0.0066944174 590 0.15515442 0.085986905 0.0019177825 600 0.15194443 0.050073914 0.0000068920617 610 0.13922411 0.025051592 0.00000701737 620 0.11962896 0.014630537 0.0000028566728 630 0.103891924 0.007423822 0.0000032685673 640 0.086871214 0.002056404 0.0000035231772 650 0.071843125 0.0000017629842 0.000002446715 660 0.056847896 1.2567651e-7 0.00022975965 670 0.0390776 0.0000022812696 0.000552226 680 0.024085859 9.0309794e-7 0.00050272886 690 0.009463116 0.000621201 0.00039737526 700 0.0055655893 0.0000013003431 0.00021440044