Pro Lens 2 is a Blender add-on from William Landgren for adding lens effects to a camera, built as a complete rebuild of the original Pro Lens. It carries a new UI and features controlled through sliders, and the developer describes it as smoother to use than the previous version. Controls live in the Camera Properties, where you can add or remove the effect, adjust its strength, and apply natural vignetting.
You can adjust the focal length and change the ratio while keeping all of the lens elements lined up, which addressed a point that made the earlier version clunky. An auto brightness correction feature helps keep the image from getting dark while the add-on is in use. To streamline the tool, the dirt elements and color adjustments from the previous version were removed.
This release supports Blender 4.2, 4.0, and 3.0, with a separate Pro Lens 2.1 build that works with Blender 4.0 and adds further changes, improvements, and bug fixes. For versions below 4.0, it's recommended to keep the F-stop at 2.8, since the bokeh is designed around that setting. A demo video and documentation are available.