Mạn phép trả lời câu hỏi của cụ ở trang 7 ạ70-200 + Ex 2x xong phải thêm em TS-E 17mm f/4L nữa mới chuẩn, CL đang mê mẩn 16-35 mà gặp em này thèm quá
Hỏi cái: Khi nào dùng chống rung mức 2 vậy?
IS Mode 1 and Mode 2
Some Canon lenses have two IS modes. Mode 1 works both in vertical and horizontal direction, while Mode 2 works only in vertical direction, and it doesn't counterbalance the horizontal shake. The Mode 2 is necessary for panning: if you follow a subject with a slow shutter speed, IS mode 1 tries to counterbalance the motion, by moving the image in the opposite direction of your movement - the result may be loss of sharpness. Mode 2 instead correct only the vertical movements, so you are free to follow the subject.
Usually, Mode 2 is the right choice for moving subjects, while Mode 1 works well for static subjects - when the camera is in landscape format, i.e. with horizontal framing. When the camera is in portrait format, i.e. vertical framing, Mode 1 is the only choice.
Nguồn : http://juzaphoto.com