The Nissin Di866 Digital Flash, with a Guide Number of 198 (ISO 100 in feet at 105mm), provides photographers with the power needed to light up a wide variety of shooting situations. It provides an easy-to-read, two-way color display which helps ensure intuitive operations. It has auto-rotation so it stays upright even when turned for vertical framing. The Di866 features the "MY TTL" mode for adjustable default level, and a manual motor zoom of 24-105mm.

It is designed with clip-on capabilities, a fill-in sub-flash that works while the main flash turns for bounce lighting, built-in wide angle diffuser and catch-light reflector for added versatility. It is powered by four (4) LR6 rechargeable batteries, (Lithium, NiMH or Oxiride)(not included, and when it is used with a Nissin Power Pack Pro 300 (not included), users have 300 full-power flashes. It boasts a recycling time of about 3.5 seconds.

The Di866 is a high-powered flash unit, great for serious photographers who will appreciate its features.