Canon ME20F-SHN, Button Operation Manual

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Adjusting the Focus
24
General Notes regarding Focus Functions
NOTES
• If you operate the zoom after focusing, the focus on the subject may be lost.
• When adjusting the focus, be careful not to touch the front of the lens or moving parts on the lens except
for the focus ring.
• About the autofocus (AF) functions:
- Autofocus may not work well when high gain levels are set.
- Autofocus may not work well when [Custom Picture]
>
[Fine Tuning]
>
[Gamma] is set to [Wide DR] or
[Canon Log].
- The point where the camera focuses may change slightly depending on shooting conditions, such as
subject, brightness and zoom position. Check the focus before resuming shooting.
• The focus position may shift in an environment with large temperature changes. Set the focus again and
check whether the focus is correct.
• Autofocus may take longer in the following cases.
- When the frame rate is set to 29.97P, 25.00P, 25.00PsF or 23.98P.
- With some EF lenses, the camera may take longer to focus automatically or may not be able to focus
correctly. Visit your local Canon website for the latest information.
• Autofocus may not work well on the following subjects or in the following cases. In such case, focus
manually.
- Reflective surfaces
- Subjects with low contrast or without vertical lines
- Fast moving subjects
- Through dirty or wet windows
- Low-light scenes