Pentax istD

Response

Native RGB responseestimatedPentax _istD · Solomatov GT collection
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 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-istd-82dc933dee94 (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-istd-82dc933dee94@1
Profile checksum
sha256:514eae412b365107…
Processing
source_column=predicted-Pentax-_istD.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
APS-C
Sensor size
23.5 x 15.7 mm
Effective megapixels
6.1 MP
Resolution
Unknown
Lens mount
Unknown
Release year
2003
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)

Also known as: Pentax istD.

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)
  1. prf-solomatov-pred-pentax-istd-82dc933dee94 (revision 1)

    Raw samples for prf-solomatov-pred-pentax-istd-82dc933dee94 (revision 1): R/G/B response at native wavelengths.
    λ (nm)RGB
    4000.00247946470.004199110.0142765865
    4100.00437689430.00679000650.033458523
    4200.00566045750.0143529940.076542735
    4300.00083128020.0246208420.12643702
    4400.0036274030.0341974870.16500281
    4500.00595976550.0397137480.19724768
    4600.00778283230.0498494950.224086
    4700.0077720170.0717259350.23937106
    4800.0093672630.0993098840.24070914
    4900.00721296060.13254840.21313049
    5000.00432804130.174009920.16586657
    5100.00355763730.224331630.110633954
    5200.0073192670.259749440.059007276
    5300.0085820930.273962560.02068021
    5400.0087292750.268606130.0069179465
    5500.0122535030.25082210.00006676374
    5600.0246171430.221806680.0022370534
    5700.067287690.179536880.006132104
    5800.129966750.131322130.009232962
    5900.166283760.088599280.009734854
    6000.162685620.055103770.010071312
    6100.148951550.0305504150.010293482
    6200.128529430.0187380150.0065944344
    6300.110915060.0109832110.0022840286
    6400.0930371960.00547945640.000008372111
    6500.075034550.00123364830.0000050637186
    6600.0579954270.000771489630.0000021099165
    6700.0393139870.00000409944050.0000016103703
    6800.023350440.0000026487880.0000012838212
    6900.0092450080.000525736660.000078709156
    7000.0051488130.0000734667850.0015592773