> For the complete documentation index, see [llms.txt](https://docs.sevenpens.com/drawtab/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sevenpens.com/drawtab/core/pressure/pressure-curves/pressure-curve-misc.md).

# Misc pressure curve notes

## Misc notes: Wacom pressure deadzone

**Some** of Wacom's Pro Pens are so sensitive that Wacom, by default, configures the pen pressure curve in the driver to have a small "deadzone" at the low end of pressure. This means the very lowest pressure readings are ignored.

Here is a screenshot showing that pressure deadzone in the default pressure curve the Wacom driver uses for the Wacom Pro Pen 2 (KP-504E).

<div align="left"><figure><img src="https://1457921496-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNde0PQIvNcFZNVxuTO0G%2Fuploads%2FDhCpeSfi7e3GrlVNv2Oe%2FScreenshot%202024-01-05%20012550.png?alt=media&amp;token=e3d8a9b1-3a4f-45ae-b226-dd8157fe084d" alt="" width="375"><figcaption></figcaption></figure></div>

Resources

[Devid Revoy - Calibrating stylus pressure (for Krita)](https://www.davidrevoy.com/article182/calibrating-wacom-stylus-pressure-on-krita)\
<https://www.davidrevoy.com/article182/calibrating-wacom-stylus-pressure-on-krita>