Canon POWERSHOT SD400 DIGITAL ELPH User Manual page 74

Image Area in Macro Mode
When the zoom is set between the maximum telephoto and wide-
angle settings, the effective distance from the lens to the subject
becomes the same as for the maximum telephoto setting.
Distance f rom Lensto
ZoomSetting Subject ImageArea
Max. Telephoto 30 cm (1.0 ft.) 108x 81 mm (4.3 x 3.2 in.)
Max. WideAngle 3 cm (1.2 in.) 37 x 27 mm (1.5 x 1.1 in.)
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