Leica SUPER-VARIO-ELMAR-SL 1:3.5-4.5/16-35 ASPH Notice D'utilisation page 17

DESIGN OF THE LEICA SL LENSES
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All Leica SL lenses look virtually identical: they have 2 an external bayonet fitting on the front 2a for
the lens hood and an internal thread for filters; there is a focus ring and a red index button for
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orientation during lens exchange . Leica Super-Vario-Elmar-SL 16-35 f/3.5-4.5 ASPH. comes with an
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additional zoom ring complete with a visual index .
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A contact strip in the bayonet flange does all the data exchange between the camera and the lens,
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including control commands for auto focus and aperture.
ADJUSTMENT OF THE FOCUS AND FOCAL LENGTH
In auto focus mode, the focus is set automatically by the camera; in manual mode, the photographer
turns the focus ring at the front of the lens. The speed at which you turn the ring determines how
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quickly the setting changes. Targeted fine adjustments or moving from a close-up focus to an infinity
range couldn't be easier. Please read the relevant sections in the camera manual for more details.
Setting the focal length - and therefore the desired image section – is done via the setting ring just
behind it .
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DEPTH OF FIELD
No depth of field scale is provided, because Leica SL lenses don't come with an aperture settings
ring. Instead, the top-panel display of the Leica SL offers the near and far focal length limits for the set
distance.
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