BessaL - 15mm lens, 35mm film, negative size: 24x36 mm,
picture angle: 108°, considerable distortions loss of sharpness and luminance,
useable format is small

Nikon - 28mm lens, 35mm film, negative size: 24x36 mm,
 

Noblex 135 - 29mm lens, 35mm film, negative format: 24x66 mm,
diagonal picture angle: 135°,
edge-to-edge sharpness and luminance
(no center filter or similar filters necessary)

XPan - 45mm lens,
35mm film, negative size: 24x65 mm, diagonal picture angle: 75°