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Your Digital Lighttable
Imagine a classic light table in a darkroom. The light shines from the bottom up. At the very bottom lies your RAW image – the digital negative. It might look flat and low-contrast, but it is your unchangeable foundation.
The Transparencies
Each module in Darktable is like a transparent sheet that you place on top of this negative:
- One sheet corrects the exposure.
- Another brings color into play.
- A third ensures sharpness.
You look through this stack (pixelpipe) from above. The original negative at the very bottom always remains untouched.
The Bottom-Up Principle
This is the most important difference compared to other programs: Darktable thinks bottom-up.
The data stream flows like the light: It starts at the RAW (bottom), runs through development, then through color, up to the output (top).
- Fixed Physics: The order of the sheets is dictated by physical logic. You can’t build the roof before the foundation is laid.
- Your Freedom: Even though the stack is fixed, you can pull out, swap, or readjust any sheet at any time.
Your Tools
- Instances: Need a sheet twice? No problem. Simply place the Exposure module on the stack a second time (second instance) – once for the background, once for the subject.
- Masks: Cut holes in the sheets. This way, an edit only affects where you want it (e.g., only in the sky).
- History: Every step is logged. You can travel back in time and undo any mistake.
The Result: A Recipe
In the end, you don’t save a “finished image”, but a recipe. An instruction on how the light should pass through your sheets. This recipe is reproducible, adjustable, and transferable to other images at any time.
About darktable.info
Darktable is a wonderful piece of software; you’ve just learned the underlying concept. To make your journey as easy as possible, we focus on the essentials.
Many tutorials on the web are outdated or unnecessarily complicated. Here, you learn only the tools you really need. Simple. Frustration-free.
Start now with the Quick Start Guide (if you have no experience with DT yet) or discover the Standard Workflow!
February 8, 2026