Canon RF 400mm f/2.8 L IS USM Instrukcja obsługi - Strona 14
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Focus Preset
When setting two presets, holding down the focus preset button briefly but then not turning the playback ring
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causes the lens to beep three times and cancel presetting. Set presets from the start again.
The camera may turn off while setting two presets. Press the shutter button halfway, and then set presets
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from the start again.
When not using focus presets, set the focus preset switch to OFF.
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Focus presets can be used in all focus modes. Focus speed is slow only during movie shooting when the
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focus mode is PF, and is fast for all other settings. In slow speed, you can make a 2-step change in focus
speed depending on how much the playback ring is turned.
All focus presets are initially at the lens' mechanical limit in the infinity direction (not at infinity) when the lens
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is mounted on a camera.
Preset focusing distances remain in memory until the lens is detached from the camera.
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ENG-13