Solution
During Live View shooting, Hybrid CMOS AF III may operate in combination with contrast AF depending on the shooting conditions and lenses used.
The combined operation of Contrast AF and Hybrid CMOS AF III is more likely to occur when capturing images of dark, small, or low-contrast subjects.
Shooting settings and lenses
- Contrast AF will operate in the following types of cases:
- When an AF point at left or right periphery is selected.
- If the aperture settings is smaller than f/5.6 (larger f/stop number than f/5.6).
- When using one of the following lenses or an extender.
Note that autofocus issues may occur with Contrast AF for lenses appended with '*' in the list below. When using one of the applicable lenses, it may take some time to focus or accurate focus may not be achieved.
EF14mm F2.8L USM
EF24mm F1.4L USM
EF100mm F2.8 Macro *
EF400mm F2.8 L USM *
EF500mm F4.5 L USM
EF600mm F4 L USM
EF1200mm F5.6L USM
EF16-35mm F2.8L USM
EF17-35mm F2.8L USM
EF20-35mm F2.8L *
EF24-85mm F3.5-4.5 USM
EF28-70mm F2.8L USM
EF28-70mm F3.5-4.5 *
EF28-70mm F3.5-4.5 II *
EF28-80mm F2.8-4L USM
EF28-80mm F3.5-5.6 *
EF28-80mm F3.5-5.6 USM
EF28-80mm F3.5-5.6 II *
EF28-80mm F3.5-5.6 II USM *
EF28-80mm F3.5-5.6 III USM *
EF28-80mm F3.5-5.6 IV USM *
EF28-80mm F3.5-5.6 V USM *
EF28-105mm F3.5-4.5 USM *
EF28-105mm F3.5-4.5 II USM
EF28-105mm F4-5.6
EF28-105mm F4-5.6 USM
EF35-70mm F3.5-4.5 *
EF35-70mm F3.5-4.5A *
EF35-80mm F4-5.6 *
EF35-80mm F4-5.6 PZ *
EF35-80mm F4-5.6 USM *
EF35-80mm F4-5.6 II*
EF35-80mm F4-5.6 III *
EF35-105mm F3.5-4.5 *
EF35-105mm F4.5-5.6 *
EF35-105mm F4.5-5.6 USM *
EF35-135mm F3.5-4.5 *
EF35-135mm F4-5.6 USM
EF50-200mm F3.5-4.5 *
EF50-200mm F3.5-4.5L *
EF70-210mm F3.5-4.5 USM
EF70-210mm F4 *
EF75-300mm F4-5.6 *
EF80-200mm F2.8L *
EF80-200mm F4.5-5.6 *
EF80-200mm F4.5-5.6 USM *
EF80-200mm F4.5-5.6 II *
EF90-300mm F4.5-5.6 *
EF90-300mm F4.5-5.6 USM *
EF100-200mm F4.5A *
EF100-300mm F4.5-5.6 USM
EF100-300mm F5.6 *
EF100-300mm F5.6L *