Shooting Pictures in Close-Up Mode with a Canon EOS Rebel T3 Series Camera
Close-Up mode on the Canon Rebel T3 and T3i doesn’t enable you to focus at a closer distance to your subject than normal as it does on some non-SLR cameras. The close-focusing capabilities of your camera depend entirely on the lens you use. (Your lens manual should specify the minimum focusing distance.)
Choosing Close-up mode does tell the camera to try to select an aperture (f-stop) setting that results in a short depth of field, which blurs background objects so that they don’t compete for attention with your main subject. As with Portrait mode, though, how much the background blurs varies depending on a number of factors.
As far as overall image colors, sharpness, and contrast, the camera doesn’t play with those characteristics as it does in Portrait and Landscape modes. So in that regard, Close-up mode is the same as Scene Intelligent Auto and Flash Off modes.
Other settings that apply to Close-up mode:
Drive mode: The Drive mode is set to Single, so you record one photo each time you fully press the shutter button. However, you can switch to the 10-Sec/Remote Control or Continuous Self-Timer options if you choose.
Flash: Flash is set to Auto, so the camera decides whether the picture needs the extra pop of light from the built-in flash. For times when the camera enables the flash, you can enable Red-Eye Reduction mode on Shooting Menu 1.
Autofocusing: The AF mode is set to One-Shot mode; again, that simply means that when you press the shutter button halfway, the camera locks focus, usually on the nearest object that falls under one of the nine autofocus points. If you have trouble focusing, first make sure that you’re not too close up: Remember, every lens has a minimum close-focusing distance. Then just use manual focusing if the camera has trouble locking on your subject in autofocus mode.