The Di866 has a Guide No. 198 (ISO 100 in feet at 105mm) plus auto-rotation on the two-way color display, so it stays upright, even turned for longitudinal framing. With a 315V high-voltage power connector, recycling time is less than 1 second. There are two models, compatible with Canon and Nikon digital cameras. Other key features include Nissin’s original "MY TTL" for adjustable default level. With a power zoom of 24~105mm, manual motor zoom is possible.