The WI NNER IS...
For our money, it’s simply the best flashgun on the market
Powerful, dependable, strongly built and packed with high-end features, the Nikon SB-910 is a superb piece of kit. TTL exposure accuracy and consistency are excellent. Onboard controls are intuitive and even the most advanced settings are quick and easy to get at and adjust. It’s not cheap, but for what you get it’s still great value.
The Nikon SB-700 matches the SB-910 for image quality, based on similarly impressive TTL exposure accuracy, colour accuracy and the fact that illumination across the entire frame is extremely even. It’s an unbeatable buy if you don’t need the SB-910’s extra power, or a strobe mode. The Metz 58 AF-2 is another strong and feature-rich contender, with highlights that include a secondary subflash tube. For minimum outlay, the Gloxy GX-F990 N TTL is amazingly advanced for such an inexpensive flashgun.