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Special Article
Requirements for sharply focused photos
Avoid
Focus
1
Reliably raise the probability of focusing the first image by
tracking the subject for 0.5 sec. before the shutter is released
When the shutter button is fully
pressed with no predictive
computation
W h e n t h e A I S e r v o A F i s n o t i n
operation, a photo of a moving subject
is taken by suddenly pressing the
shutter button fully.
The first image may not be focused in
some cases
When the shutter button is pressed suddenly,
it will be difficult to accurately focus the first
image
EF300mm f/2.8L IS USM 1/3200 sec. f/4 ISO100
* The time of 0.5 sec. is only a guideline, and by operating the AI Servo AF a little before shooting, focus probability is increased.
