Greetings, Charles. In a nutshell: SB-24 does not support the 3D matrix flash metering SB-26 probably the best AF speedlight Nikon made SB-28 gained a little power, dropped the slave mode, has annoying spongy buttons and some weird controls: to change ISO setting, you have to remember to press the "zoom" and "on/off" button simultaneously when turning it on... hideki > Hi folks, > > Anybody knows about some homepage with a compation chart for Nikon flash > SB series??? I need to know the difference between the SB-24, SB-26 and > SB-28 features. > > Thanks, > > Charles