Comments about Nikon Nikon SB-900 TTL AF Shoe Mount Speedlight, Guide Number 132 - USA Warranty.:

Did you use Rechargeable Batteries?
Use AA only... NOT recharge batteries.. has less volt...

I use high setting... and it's been good to me..
Wedding, Birthday, and Dance....
Good luck

Comments about Nikon Nikon SB-900 TTL AF Shoe Mount Speedlight, Guide Number 132 - USA Warranty.:

Not sure what people are talking about. I tested this flash. Pushing the test button every 3 to 4 seconds for 5 minutes at half power and it never got over half temp. I can't think of any scenario in a wedding where I would need full power flash that often. It would blind anyone standing in the way. At 10 feet, it outputs at f8.

Comments about Nikon Nikon SB-900 TTL AF Shoe Mount Speedlight, Guide Number 132 - USA Warranty.:

I was really excited to see Nikon come out with a flash that would meet my needs for weddings. This was the worst....I had it for a month and sent it back, exchanging it for another "old faithful" SB-800.

This flash consistently overheated and shut down in the midst of numerous weddings. The recovery time was unacceptable. I can't belive that Nikon let these overpriced, sub-standard flashes hit the market.

I called Nikon and they said they didn't know anything about it. Impossible! It's all over the internet.

Save your money.

Comments about Nikon Nikon SB-900 TTL AF Shoe Mount Speedlight, Guide Number 132 - USA Warranty.:

This flash head is large and has a quick recycle time. the range is great on a 70-200mm lens. It gives complete coverage and zooms perfectly. However it has an overheat temperature gauge and shuts down when it "over heats"! I shoot weddings and need a flash I can use for over 20 flashes with in 3 minutes or less. The flash shuts down however. Regardless of what ISO I shoot at even ISO 1200 on a D300! I have to use my sb800s often to push the limits of flash without an overheat over ride shut down.