馬賽克0445 wrote:
那麼不喜歡就趕緊跳 ...(恕刪)
這段話是引用image resource
Canon says that the various improvements make the EOS 40D's autofocus calculation speed 30 percent faster and more accurate than the EOS 30D, and better in low light. The 20D and 30D have what I consider to be the best low light AF system on the market for the price, focusing on a person lit only by a television screen, and it does seem that the 40D can best them in some situations.
However, there have been quite a few situations where the Canon 40D kept on seeking when the 20D just quickly found and locked focus, specifically when the 40D was in Multi-point AF mode. I've found a few situations where the Canon 40D just seeks and seeks, and never stops. Most cameras give up after a few seconds. This is the first autofocus SLR of any make that I've seen do this. You can turn Focus Seek off in the Custom Function menu, but that still doesn't stop the endless seeking. Oddly, this occurs more for me in vertical mode.
In horizontal mode, Dave had a heck of a time getting the Canon 40D's top center AF point to focus on Marti's hair during the indoor shots. Hair isn't the best place to focus, of course, but it works well enough when we do it with other cameras. In Dave's case, the camera said it was in focus, but it was either front- or back-focusing.
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至於對焦屏的問題, 不用太鐵齒什麼眼力不眼力, 你有比較過就知道
