Let’s put the record straight. The foot on the Nikon SB-900 is identical thickness to the foot on the Nikon SB-800. There are some forums and blogs that claim the SB-900 is not compatible with certain accessories. I am pleased to say that I have 2 SB-800’s and the feet are of identical thickness to the SB-900 that Nikon lent me for testing purposes. My full review of the Nikon SB-900 will be on the Warehouse Express website in a couple of days, but in the mean time I thought I’d share my finding regarding the beam patterns…
The picture above shows the light pattern from the SB-800 when zoomed in to 105mm.
The picture above shows the identical shot but with the SB-900 zoomed into 105mm. I used a Nikon D90 on a tripod with the pop up flash in commander mode for these shots.
And finally the SB-900 is zoomed into 200mm. Note the highlights at either end of the lozenge shape beam pattern.
As you can see from the pictures above there is a distinct pattern from the SB-900 when zoomed into above 105mm that would make it less attractive for those slashes of light pictures like the one below. At 105mm though the SB-900 light output is far more even.
I suggest using either a snoot with the Nikon SB-900 when zoomed in to 200mm or stick to 105mm for slashes of light shots.
Please feel free to comment on these findings or discuss findings of your own.