Canon EF 24-70mm f/4L IS USM User Manual - Page 17

12. Taking Hand-held Close-ups Close-up shots are more prone to be affected by camera shake than with normal shooting. The Image Stabilizer's corrective effect is therefore less during close-ups than during normal shooting even with the same degree of camera shake. The depth of field also becomes very shallow with close-ups, and moving forward or back even slightly will throw off the focus. When hand-holding the camera for close-up shooting, minimize camera shake and blurred focus with the following techniques: Place both elbows on a steady surface such as a table. Hold the camera firmly As shown on the right, hold the camera firmly so it does not move while shooting. Use AI Servo AF For close-up shots, set the camera's AF mode to AI Servo AF. Using autofocus is recommended. The AI Servo AF mode can minimize blurred focus during close-up shooting. For details, see the camera's instruction manual. Use your knee to support an arm holding the camera. Lean against a steady object like a wall. ENG-16