Stylish design with enhanced user experiencennColorful LED control panel and select dial with simple user of interface in both Nissin Di700A and Nissin Air 1. Even beginners can quickly get started. All settings can be easily operated by one finger-tip.nnFocal Length range coverage of 24-200mmnnThe auto zoom coverage has increased to 24~200mm from its predecessor. It can achieve maximum output of GN54 at 200mm.nnFocal length range on Nissin Di700A can be set by Nissin Air 1.nnProfessional flash head designnnNissin Di700A has rotating lock release buttons. The flash head rotates horizontally 180 ° to right and left, tilts up to 90 °and expanded 7 °of downward tilt, which is suitable for close up photography. It makes bounce shooting more arbitrary, with more angles that can be used.nnExternal Power Pack SocketnnNissin Di700A supports Power Pack and Nissin Power Pack PS 8 / PS300nnNissin Di700A has PC terminal socket for flash synchronizationnnNissin Di700A has Standard & 3.5mm PC Terminal for flash synchronization.nnRear curtain sync and High speed shutternnIn Rear curtain sync., the flash fires just before the rear curtain closed. By using this function at slow shutter speed, a moving subject will appear with such moving marks behind. High speed sync. is recommended for daylight flash photography.nnFirmware UpdatennA firmware upgrade service is available for the Nissin Di700A, which provides a service terminal to upload the latest software. A charge for the firmware update service will apply, varying depending on the area. Please check at your local dealer for details about the update service.