Cycles in Blender 5.0 or newer. Oris uses the custom OSL camera that came in Blender 5.0, which renders on CPU and on NVIDIA GPUs with OptiX. Blender does not support OSL cameras on CUDA, HIP (AMD), Metal (Mac) or in Eevee.

The camera itself is light: on CPU it adds roughly 10 seconds per megapixel at 128 samples on a 16-core machine. Dirt and rain send rays in new directions, so highlights through them need more samples, and the denoiser handles them well. Fast Preview turns the lens off while you work in the viewport.

Yes. Oris works on a normal Blender camera. Focus, focal length and f-stop can be keyframed, and camera shake sits on top without touching your keys.

Yes. Import a lens prescription as text, CSV or a pbrt .dat table, the same format used in lens patents and books such as Modern Lens Design.

No. The compiled camera is saved in the .blend file.

Yes. Anamorphic lenses are modelled as a spherical lens with a cylindrical front attachment, so the frame stays geometrically correct while the bokeh turns into tall ovals and the horizontal field widens.