@ScottyP Can you show me in the manual where you're talking about? I see a reference to something like that when using Av mode (manual page 173, "Flash Synchronization Speed in Av Mode"), but nothing where the user is manually setting the shutter, like in Tv mode. Generally I think it would drive me nuts if the camera was automatically overriding my manual settings. If the user is in Aperture Priority mode, the camera can make all the decisions about shutter it wants, especially limiting it to the sync speed. In Shutter Priority, the user should be making all shutter decisions, for better or for worse, no matter what the camera thinks is correct.