totalbeginner wrote in post #5413201
I'm using the 5D and this would be my advice...
Put the camera in manual mode. If it's a cloudless day, then it's unlikely that the light is going to change dramatically over short periods. Take a spot meter reading, followed by a test shot and then check the histogram.
Now that you're in manual, the camera won't change the Av or Tv values and you should get consistent exposures. In an automatic or semi-automatic mode, I find that when shooting scenes with a large dynamic range, the meter is fooled by the extremes and you get very inconsistent results.
If the sun's dipping in and out of the clouds, then I would suggest using Tv or Av and dialling in some EC.
You see, that is exactly the problem when shooting sailing. The light does change quite dramatically on the boat as it moves in relation to the sun and pitching due to the sea state. The sails can cast large shadows over the boat, or be quite dark in one orientation and then completely the opposite in another orientation. It can happen even with relatively small shifts in the trim of the sails or quickly when the boat tacks. So, it really isn't a static lighting situation.
Also, in order to get decent up close sailing shots, 90% of the time you need to be on another boat (or in an aircraft) unless - by chance - the boats are close to shore and you have some really long glass. Since pretty much any boat <40' is not a stable platform you often are in the mode of "one hand for yourself, one had for the boat." Most shooting of this nature is done from much smaller boats than that because of the maneuverability required to get to good shooting positions. That makes it quite difficult for any fooling with anything.
So, while in general I agree with the manual metering comments for outdoor bright shooting, I don't agree with it in this particular case. It is probably the most dynamic shooting situation I am in with both the shooting platform being unstable and the rapidly changing light.