Pentax K20D
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 spectrum5 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: Estimated response; not a primary measurement. Sources and attribution
- 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: estimated
- Estimated response: not a primary measurement (e.g. diffraction-grating closed-form recovery, model prediction). Independent of profile_type and quality/confidence grades.
- Type: estimated
- Estimated response, not a direct measurement; quality and confidence are assessed separately.
- 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
- Solomatov
- Source
- Solomatov & Akkaynak, ICCP 2023, 'Spectral Sensitivity Estimation Without a Camera' (link)
- Source category
estimated(estimated response; not a primary measurement)- Methodology
- Solomatov & Akkaynak, ICCP 2023, 'Spectral Sensitivity Estimation Without a Camera' — model output.
- 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-solomatov-pred-pentax-k20d-f4af9980fa21(unknown) — unknown- Normalisation
- unknown (original: unknown)
- Response unit / scale
unknown/unknown- Sample count
- 31 samples from 400–700 nm, Δ 10 nm
- Profile ID
prf-solomatov-pred-pentax-k20d-f4af9980fa21@1- Profile checksum
sha256:5a86072a3f35dfa6…- Processing
- source_column=predicted-Pentax-K20D.csv
- 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
- Solomatov & Akkaynak, ICCP 2023, 'Spectral Sensitivity Estimation Without a Camera', data/predictions/.
- Known limitations
- source_category=estimated
- permission_status is 'unknown' on the canonical License record (no independent operational clearance granted).
Graph tools
Inspect, zoom, export, and share the current chart. Native samples only — no interpolation, no averaging.
Channels
Zoom (nm)
Camera specifications
- Sensor type
- CMOS
- Sensor format
- APS-C
- Sensor size
- 23.4 x 15.6 mm
- Effective megapixels
- 14.6 MP
- Resolution
- Unknown
- Lens mount
- Unknown
- Release year
- 2008
Specification sources
Body specifications drawn from cited reference sources, distinct from the measured spectral response curves below.
Source: Dataset commit 374a630bac7847f851b3746e82aa528262ef0b5c Dataset: CameraDatabase (unknown); Dataset commit ef88b8381775c8c8c812c10cd02790a42dbdf757 Dataset: OpenProductData (unknown)
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
- 1 profile revision
Raw samples (R/G/B at native wavelengths)
prf-solomatov-pred-pentax-k20d-f4af9980fa21(revision 1)Raw samples for prf-solomatov-pred-pentax-k20d-f4af9980fa21 (revision 1): R/G/B response at native wavelengths. λ (nm) R G B 400 0.0028219135 0.0042305253 0.013309152 410 0.0058633885 0.007872658 0.032421146 420 0.00775517 0.017085373 0.075185485 430 0.0014162108 0.030318959 0.123246916 440 0.007299847 0.044086598 0.15914309 450 0.012238308 0.053160418 0.18838228 460 0.016080549 0.06538153 0.21227819 470 0.018389871 0.08636273 0.22203317 480 0.022456035 0.112278506 0.21779136 490 0.019748628 0.14231034 0.1874223 500 0.014030782 0.17958319 0.14395423 510 0.007976096 0.22412874 0.09752352 520 0.00497128 0.25500903 0.05552048 530 0.0000056440736 0.26604337 0.025337543 540 0.00016948848 0.26144388 0.012814426 550 0.00010663577 0.24518721 0.0053547053 560 0.003658209 0.22075436 0.0057621426 570 0.057471775 0.18425709 0.0075687314 580 0.13970663 0.14318325 0.0081634885 590 0.18293104 0.10579796 0.006664601 600 0.17820261 0.076380946 0.004967685 610 0.16441375 0.053340744 0.003971197 620 0.14316504 0.03927443 0.0033858328 630 0.12626703 0.027143762 0.0014257785 640 0.10886351 0.01775254 0.000010133816 650 0.09083938 0.010417122 0.000008953848 660 0.072010666 0.006748192 0.0000113041915 670 0.050516866 0.0027739175 0.0000015262186 680 0.029202359 0.0013078727 0.0000024550384 690 0.013217171 0.0012011532 0.00002039385 700 0.00885931 0.00020269424 0.0000050747394