This is a truly useful accessory for professional photographers who need occasional access to specific lenses not used in their everyday work. | | The automatic focusing system in the H camera can be used as a guide for manual focus setting. Light is measured at full aperture with all lenses which produces aperture and shutter speed information display in the camera for manual setting. | | With CFE lenses, however, a preset aperture is automatically transferred to the camera. Shutter cocking is manual with all lenses and is swiftly carried out by an easily accessible lever. |