Anamorphic breathing appears in a different way than when using a normal spherical lens. With a spherical lens, breathing gives the appearance that the focal length is changing. However, with anamorphic lenses, vertical stretching occurs with the background. So when you adjust focus from something ...
An anamorphic converter, which is disposed at an image side of an image-forming optical system, includes a first lens unit having one of positive and negative optical power, a second lens unit including an anamorphic lens, and a third lens unit having positive optical power, positioned in orde...