We mounted a lens from a Delineascope Model 0 Projector by Spencer Lens Co on a Nikon Z7 and tested the bokeh bubbles and swirly bokeh quality.

We tested and reviewed a 1920s Vintage Bell & Howell 2-inch Projector Lens Made in England by Taylor-Hobson, and shared the results

Vintage Rapid Rectilinear Bausch & Lomb 6.5-inch f/8 from a 3-A Eastman Kodak Camera Tested on a Nikon Z7

We mounted a vintage Bell & Howell 16mm 2inch f/1.6 Projection Lens on a mirrorless camera and tested it for bubble and swirly bokeh and published the results.