While this has probably been discussed to death in the past, looking through the archives has left me confused, especially as I too am suffering from erratic flash exposures with a non D-series lens (an old Tamron 28-200 superzoom, my knockabout lens for hazzard situations such as my wood turning shop!), so am left wondering which fault is which.
The 7D is now my backup camera for when I don't want to risk my A700, so often goes for a while without being used. I always get the first frame or two either unexposed (i.e. totally black) or very underexposed. The camera often actually seems to lock up, so that I have to turn it off and back on before it then usually starts to work OK. I recently used it with the built in flash for some fill in, in P-mode, however, and the exposures never settled down either, so that I had to rely on ambient light and a slow shutter speed - thankfully the anti-shake still works!
In view of the above, would someone please inform me, in simple terms, what causes this first black frame, is it repairable, and could the flash problems be related to it at all, or are they purely because of the Tamron being non-D?
Thank you,
TonyW.
