the black fox wrote in post #18393839
a question for the more experienced 1d4 users ,i use mine 95% of the time with my sigma 150-600 sport ,and due to aperture limitations and u.k weather i have recently found(last weekend) that the best way to use this particular camera is in M manual exposure mode and auto iso ,however with birds in flight i often like to apply positive exposure compensation ,i can't seem to apply that i can only alter shutter speed or f stop .
the only way i seem to be able to do it is to come out of auto iso
This is normal behavior for an SLR with auto exposure. When you are in manual, there is no "Exposure compensation" because there is no auto exposure for you to compensate for. Your "EC" adjustment is to simply alter aperture, shutter speed, or in DSLR case, ISO to change the manual exposure you have.
That said, with the most modern DSLR, there is now often an "EC" adjustment in manual that will in essence do the same thing as bumping or reducing the ISO setting, while maintaining your manually set shutter and aperture.
In practice it's all the same thing, notice you need more light, and adjust one of the three factors (if we include ISO) with a dial to let in more light.