I used an SB-80DX with my D100 and never had a problem till the flash stopped working. Off to get it serviced and while it was gone I invested in an SB-800 as well. The flash came back and works fine with the D100 on all the ASA settings. OK I have also invested in a Fuji S5 (its based on a D200 - so don't shoot me). The SB-800 of course works fine but the 80DX only displays ASA100 no matter what mode I use, manual, automatic. I know there are issues with dTTL and iTTL but that is not the concern - just the ASA reading. I took it into the camera shop and was surprised when they told me the SB-80DX does not work with newer cameras, the D80 and the D200! The manuals say they can be used albeit not with iTTL mode. When they put it on a D80 it only read ASA 100, on a D200, the same, but on a D2X no problem. Does any one else have a D80 or D200 and also the SB-80DX?