# Error Logger Error Logger is a real-time event report for QC sessions. You can define legal ranges for your signal, start a logging session, and review every detected violation in a timestamped list. The ranges for gamut checking can be configured in **Help / QC Gamut Check**: ![QC Gamut Check](/files/-MJiC75zb3pAjb-MK9LF) Once **Gamut Check** is enabled and an **Error Logger** session is started, OmniScope records detected events in the list. Gamut Check analyses the source frame without any modifications. It's in original resolution, before the [crop](/nobe-omniscope/features/crop.md) or aspect ratio is applied. ![](/files/-MJiCWHmEUwqSo4ePDPE) ## Event Filters The Error Logger can record and display multiple QC event types, including gamut violations, HDR gamut warnings, luminosity limit hits, blanking events, line-count errors, black frames, dead pixels, and audio silence. Use the filter controls in the Error Logger scope to temporarily focus the list on the event types you want to review or export. ## Timecode Notes Logged entries follow the active QC timeline timecode source when embedded timecode is present. If LTC is selected for the QC timeline, Error Logger entries use LTC; otherwise OmniScope falls back to VITC or the source time reference that is available. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.timeinpixels.com/nobe-omniscope/scopes/error-logger.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.