Pentax 645D
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-645d-1f7cc9fc6136(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-645d-1f7cc9fc6136@1- Profile checksum
sha256:cf069f658ef82547…- Processing
- source_column=predicted-PENTAX-645D.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
- CCD
- Sensor format
- Medium format
- Sensor size
- 44 x 33 mm
- Effective megapixels
- 40 MP
- Resolution
- Unknown
- Lens mount
- Pentax 645AF2
- Release year
- 2010
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); Dataset commit 2f1be1deab50da7869fc5d23f481939803d845bf Dataset: Lensfun (CC BY-SA 3.0)
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-645d-1f7cc9fc6136(revision 1)Raw samples for prf-solomatov-pred-pentax-645d-1f7cc9fc6136 (revision 1): R/G/B response at native wavelengths. λ (nm) R G B 400 0.0027568643 0.004641397 0.012709112 410 0.0059761605 0.008156669 0.03158972 420 0.006801313 0.017534789 0.07359184 430 0.0002256115 0.028811567 0.12158201 440 0.0044580507 0.04177298 0.1567664 450 0.01055348 0.05180359 0.18334146 460 0.017183175 0.06544501 0.20529005 470 0.02348277 0.088089235 0.21482652 480 0.031259116 0.11529041 0.21236545 490 0.029774694 0.14456627 0.18915758 500 0.023624875 0.18026552 0.15124427 510 0.01625929 0.22338566 0.11047176 520 0.0097562885 0.25286198 0.071750045 530 0.000009238127 0.26301318 0.04218136 540 0.000012500755 0.25799218 0.02674966 550 0.000022174283 0.24252667 0.015273114 560 0.0000909053 0.21853364 0.0103213545 570 0.055825546 0.18177052 0.011113211 580 0.14227463 0.14050537 0.015279571 590 0.18983401 0.10308194 0.012024178 600 0.18535404 0.07487337 0.003509036 610 0.16775557 0.052927393 0.00023346582 620 0.14515956 0.03891139 0.000035185043 630 0.12712768 0.026191423 0.000004230592 640 0.109478496 0.016077269 0.00079481123 650 0.091599256 0.008052731 0.0032361944 660 0.07381658 0.003989232 0.0047046933 670 0.052502785 0.00086577155 0.004351483 680 0.030736472 0.00007468005 0.0021686682 690 0.012786429 0.0009761167 0.0012962203 700 0.009266393 0.00027672088 0.0010666893