7D fill in flash question
I went out on Saturday morning to test my new 7D. I went to my local Nature Reserve that normally has lots of photo opportunities. I was walking along a footpath and a little Robin landed right next to me. I had the Canon 100-400mm lens on my camera as this is my favourite walk-about-lens. Anyway, I generally have my camera in Tv set at at least 1/400 sec, as i was facing into the sun to take the shot of the Robin I popped the flash up for some fill-in but the speed reduced to 1/250 which was really annoying, I have tried all the setting I can find regarding flash exposure, there seems to be 3 options, Auto, 1/60>
1/250 or 1/250 fixed. Does anyone know if this can be changed. My 1D mk3 and 40D don't automatically set the speed when I pop the flash up in Tv mode, I could understand if it did this in Av Mode but not Tv. Apart from that I'm really impressed with the IQ and handling.
Can someone shed some light.