Stupid, stupid me! I should have gotten the SB-600.
I have two questions about my SB-400 today:
1. When set to TTL mode, it never seems to fire at full power. If I don't crank up the ISO to 800-1600, then my images appear to dark. However, I can use the same or better settings at ISO 100 by switching the flash to fire at full power in manual mode through my D300 menus. Is this what to expect?
2. When I switch the SB-400 to manual mode through the menus of my D300, the only way to achieve proper exposure is by switching to manual mode, making a guess at settings, and then taking a test shot. This simply does not work for me—when I need full power from the flash, it's because I need a high shutterspeed, but the test shot only makes this mode unusable in those situations for me. Are all the flashes like this, or is it only the SB-400?