> >>For still images you get exactly the same result. > >No, when setting the crop in camera, the meter will consider >only the cropped portion. That is true for any crop mode. In >most cases it will not make a meaningful difference, but if >you happen to have some bright light just outside the crop >area but within the 35mm frame, the in camera crop will give a >better exposure.
Yes, that is true, but for the 1.2x crop mode, there would have to be a very very bright light outside the tiny crop area, that didn't affect the metering inside the crop area. I guess I should have said the image would be 99% identical.
>That said, I rarely use in camera crop since the flexibility >of having the entire frame is more valuable to me than >avoiding occasional exposure errors.
Same here. If I am shooting a smaller subject, I use center weighted metering and keep the whole frame in case I don't get the subject framed quite right. Airshows are a good example. I could easily fit the fast-moving aircraft into even the DX crop size, but very often it moves out of the center on me, and if I weren't using the whole frame, I might lose a valuable capture. Also, with airshows, I always use the camera on Manual Mode, so my exposures won't change from frame to frame, meaning metering is not an issue for cropping in that case.