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 ...
In comparison, rear converters are advantageous in that astigmatism does not vary during focusing. SUMMARY OF THE INVENTION The present invention is directed to an anamorphic converter which provides high optical performance and with which a magnification of an aspect ratio can be easily changed. In...