fpLog - NOT WORKING

Recording a log-encoded picture on the SIGMA fp, from the SD card, in RAM only.

Add-on
Alpha
Low brick risk

Source code

This project hasn't been claimed by its maintainer yet, so its details come from the community. Is it yours? Claim it

Before you start

How hard is it?: HardUses the command line or developer tools.
What you need: Comfort with the command line
A computer
An SD card or USB stick
Can it break my device?: Very unlikely to break anything.
Can I undo it?: The project doesn't say. Assume you can't.

Get itOpens github.com

Did it work for you?

Did fpLog - NOT WORKING work on your Sigma fp?

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Works for me Didn't work

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Did it work for you?

Did fpLog - NOT WORKING work on your Sigma fp?

No reports yet.

One-tap reports from owners. Bricked reports are checked before they count.

Compatibility

Devices: Sigma fp.

No compatibility information yet.

Getting started

From the project's README ("Repository"):

docs/CURVETARGETS.md the plan: where a log curve should sit, ranked, with what confirms or kills each
docs/ISPPIPELINE.md the reference: ISP stage map, the eight patterns, MOV vs CinemaDNG, module map, missing data
docs/GAMMAPLAN.md once a target passes — measure the stage, fit the curve, ship
PLAN.md the project: container reasoning, curve choice, phases, safety, verification
docs/MAINGAMMA.md the negative record — what is ruled out, what was ruled out prematurely, and why
docs/LOOKCURVE.md the look-record format, corrected 2026-09-22
docs/BITDEPTH.md bit depth per stage, and where the real constraint is
docs/CHROMACEILING.md why 4:4:4:4 is not reachable, and what the actual ceiling is
docs/SENSORMODES.md the 70-entry sensor mode table, the 14 geometries, and whether 2.6K is reachable
ADDRESSES.md 387 addresses, generated by tools/genaddresses.py, with confidence per row
changelog.md append-only record of every change and why
docs/ FIRMWAREBASE.md, PIPELINE.md, TONECURVEHUNT.md, ENCODERPROBE.md
share/ the distributable card — AutoRun.txt, the builder, the decode. Generated by tools/makeshare.py; --check proves it is current
docs/cards/logc.md the Log C card: write the curve, shoot the series, score it
docs/cards/invert.md the decisive experiment: invert the transfer function and see whether the picture follows
…


docs/CURVETARGETS.md	the plan: where a log curve should sit, ranked, with what confirms or kills each
docs/ISPPIPELINE.md	the reference: ISP stage map, the eight patterns, MOV vs CinemaDNG, module map, missing data
docs/GAMMAPLAN.md	once a target passes — measure the stage, fit the curve, ship
PLAN.md	the project: container reasoning, curve choice, phases, safety, verification
docs/MAINGAMMA.md	the negative record — what is ruled out, what was ruled out prematurely, and why
docs/LOOKCURVE.md	the look-record format, corrected 2026-09-22
docs/BITDEPTH.md	bit depth per stage, and where the real constraint is
docs/CHROMACEILING.md	why 4:4:4:4 is not reachable, and what the actual ceiling is
docs/SENSORMODES.md	the 70-entry sensor mode table, the 14 geometries, and whether 2.6K is reachable
ADDRESSES.md	387 addresses, generated by tools/genaddresses.py, with confidence per row
changelog.md	append-only record of every change and why
docs/	FIRMWAREBASE.md, PIPELINE.md, TONECURVEHUNT.md, ENCODERPROBE.md
share/	the distributable card — AutoRun.txt, the builder, the decode. Generated by tools/makeshare.py; --check proves it is current
docs/cards/logc.md	the Log C card: write the curve, shoot the series, score it
docs/cards/invert.md	the decisive experiment: invert the transfer function and see whether the picture follows
…

Read the full instructions

Risk and recovery

Brick risk: Low
Requires opening the device: No