Canon 7d firmware v21/8/2023 ![]() Now this is fine for evenly toned birds (in the ambient light) but for light or dark birds you have to change the exposure by reducing or increasing the shutter speed but as explained above this does not work if you are using auto ISO. This is no good for my manual method with birds as I set the ISO and metre off of something around 18% grey and set the returned shutter speed and aperture to suit. But this does not work if you are on auto ISO (Canons) - all that happens is when you change the aperture or shutter speed is that the ISO changes to counteract the exposure change you wanted so the metre is always on zero (unless it needs less than ISO 100 or more than 1/8000 sec thus exceeding the cameras capabilities) Normally when shooting in manual you can change the metering by altering the shutter speed or aperture - so if you set say f5.6 and 1/1000 sec and lets say you want Ev+1 on that then you would just change the aperture to f4 or the shutter speed to 1/500 sec and you will be changing the exposure.
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