Render with Real-World Lenses
Lens Sim is a Blender addon created to simulate camera lenses based on real-world optical data. By extending the standard blender camera you can easily choose and render dozens of lenses in Cycles. By simulating the physical characteristics of glass and the aperture opening we get common lens effects such as chromatic aberration, vignetting, distortion, lens softness, focus breathing and natural bokeh shapes. These effects contribute to the organic, imperfect look of physical photography. The standard camera provides an idealized, perfect clean render that misses out on these unique characteristics, making images feel sterile or too “perfect,” which can detract from a “film-like” look. This addon inspires to improve that.
Anamorphic lens in action, notice the lens breathing and oval bokeh shape.

Closeup showing the chromatic aberration.
Choose between an extensive selection of lenses, each carefully modeled with real-world data to provide a broad range of simulation possibilities. From wide-angle to telephoto.

Each lens has a unique bokeh shape and distortion profile.
Dive into the world of macro photography with specialized lenses that excel at capturing tiny objects. Perfect for showcasing delicate subjects, such as flowers or small objects.

etc

Changelog:

2.3.0:

New features/improvements:
-Main Header: Info button
-Preference option: Open Changelog
-Preference option: Clear Camera Data when lens is changed
-Preference option: Enable/Dissable Draw Lens In 3D View when Lens Sim camera is created
-Popup Panel
Opens a temporary floating panel with the main Lens Sim layout
Shortcut is set in the Add-ons preferences
-Pressing the rotate lens button will now adjust render resolution to match the new orientation
-Functions that changes resolution is now compatible with the Per-Camera Resolution Extention

Tweaks:
-Auto Sensor Motion Blur and Disable Non-Active Cameras From Rendering is no longer experimental

Bugs and fixes:
-Fixed Zemax importer, an update in the 2.2.0 release broke the importer -(FULL)-
-Ior values is now not overriding the V value in the surfaces panel -(FULL)-
-Schematic viewer should now display the sensor size correctly when Focus Mode is set to Focal Length
-Rays in the schematic viewer is now positioned correctly when Split View is enabled and Scale is not 1.0

Experimental:
-Early OSL Camera shader implementation for those who are interested. NB! Requires Blender 4.5.0