|Left lens: Graf Variable 8.5-9.5" f/3.8-f/4.5|
This lens can function as a sharp anastigmat lens working at f3.8 maximum or a diffusion lens working at f4.5 maximum. The adjustment from sharp to diffused focus is by turning a calibrated control ring at the front of the barrel, moving the front cell in or out about ¼”. When it is out, the lens is a sharp f/3.8 – when it is in, the lens is a soft focus f/4.5, and the amount of rotation controls the diffusion. The lens is calibrated with two scales of f stops – one each for sharp and soft focus, and will cover a 5"x7" format. This lens works best with stitching on the CameraFusion sliding back.
|sharp setting, wide open aperture|
|soft setting, wide open aperture|
|medium soft setting, f/5.6 aperture|
|full soft setting, wide open aperture|