Dear Nikoneers, I have an unsolved problem with my F90X (N90s): What is the difference between setting flash exposure compensation on the MF-26 Data Back and that on the SB-26 Flash Unit? Suppose I set flash exposure compensation on the MF-26 to -1.7 stops while I set *no compensation* on the SB-26, the subject will get underexposed by 1.7 stops? What if I set -1.7 stops compensation on *both* MF-26 and SB-26? I know I can run a test myself. However, it would also be better to get something more useful from the list. Thanks in advance, -- Thiti Vacharasintopchai Chulalongkorn University Alumnus Graduate Student in Structural Engineering, Asian Institute of Technology, Thailand. mailto:[EMAIL PROTECTED] or mailto:[EMAIL PROTECTED] ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com