This is a half-stop less than advertised, which ia actually quite impressive, as all previous Japanese flashes have measured a full stop less than advertised, so the SB-910 actually has a half-stop more power than I expected. Just remember, not only do you now have the wireless RF capabilities (you need the WR-10 + Compatible camera) you can also attach your pocket wizards or just use the optical sensor as always. The SB-910 version was introduced in late 2011, with the only fundamental change from the SB-900 being the way the new flash manages overheating.

And when taking pictures in certain situations such as in rapid sequence, to prevent the flash tube from overheating, an improved thermal cut out protection has been adopted that slows recycling instead of cutting off the flash. With the SB-900 mounted, the Speedlight's firmware is shown as the S value (A and B are camera firmware, L is lens, S is Speedlight). Nikon DSLRs from the D2H in 2003 and later use iTTL, which uses a pre-flash to determine the right exposure. Really, the only thing that ever goes wrong with flashes is either you drop them, or you explode them. So, this is why many experienced photographers just assume that the SB910 is the only professional choice.This license is not a sale of the Manual and you do not become the owner of the Manual through your purchase of any product, download and/or use. YOU MAY NOT ASSIGN OR OTHERWISE DISPOSE OF, MODIFY, ADAPT, TRANSLATE, RENT, LEASE, LOAN, RESELL, DISTRIBUTE, NETWORK, OR CREATE OR HAVE CREATED DERIVATIVE WORKS BASED UPON THE MANUAL OR ANY PART THEREOF. This is why I'm sticking with my SB-600 any time I need a big flash — but I'm no longer a news pro or event shooter. All of the complex lighting calculations are computed for you instantly with consistently accurate results in just about any lighting situation. Additionally, if you happen to have a Nikon Camera with a pop-up flash that supports commander mode - then you really do not need the SU-800, but the SU-800 does make the job much easier for sure.

Rear and Front lights blink: Insufficient light for correct exposure (in i-TTL, Auto Aperture flash, Non-TTL Auto flash, or Distance-priority manual flash operations). For FX cameras, the GNs tend to be very slightly lower for the SB-900 than for the SB-800 for equivalent settings, though the ability to focus the flash head and the 200mm head position can give you a boost if you're not trying to light really wide areas and prefer to limit the flash coverage. The short answer is the SB5000 supports off camera use with other compatible wireless receivers that attach to the flash.maybe if I just do Transmitter and receiver it would be fine, my problem was more on the flash units.