Nikon sb-900 - calibration appears off
Hey Guys, I seem to be getting strange output levels at the lower and higher ends of the adjustment range.
Flash with no trigger gives readings as follows. (128=f2.8, 64=f4, 32=f5.6, 16=f8, 8=f11, 4=f16, 2=f22, 1=f45) (seems to me like 1/1 SHOULD give f32, but regardless…)
Flash with V6, profile set to manual gives similar readings to above, with maybe a half stop power increase from 1/8 upwards.
Flash with V6, SB-900 profile gives (Lo=f4, 128=f4, 64=f4, 32=f5.6, 16=f8, 8=f11, 4=f16, 2=f22, 1=f90!!)
So, with remote power adjustment available, Lo seems useless, 1/128 overpowers the flash by a stop, and 1/1 by 2 stops. The other levels seem accurate.
What's up with this? I'm guessing those massive 1/1 dumps are not healthy for my speedlight.
I took all these readings in a darkened room with a light meter, and took several readings at each data point. V6 firmware is 1.0.173.