Camera exporter is a 3ds Max script from Chuggnut built around a single task: exporting camera position and lens data. It is described as an easy ASCII camera position and lens exporter, so the emphasis sits on a simple, direct way to get camera information out of a scene.
The listed release is version 2.3.5. It is listed here as free, and the developer's page at chuggnut.com is the place to check for current details, downloads and licensing. The script is also cataloged on ScriptSpot among the wider collection of 3ds Max scripts.
Because it handles camera position and lens specifically, Camera exporter keeps its scope focused on that export function rather than layering on extra steps. The ASCII output keeps the exported camera information in a readable text form, and the developer's site holds the fullest picture of how it works within a 3ds Max setup.