I am looking for a compact flash to use with my N90s, FE2, and N2000 - the SB-23 is the right size, but Nikon's description of it on their web site is not very helpful. It is described as being capable of "balanced fill flash" on a veriety of bodies. Does it only do fill flash, and only on late model bodies, or is it capable of TTL on all Nikon bodies with TTL flash metering? TIA, Bill Boyle
