Canon EF17-40LU Manual de instruções - Página 8

Procurar online ou descarregar pdf Manual de instruções para Lente de câmara Canon EF17-40LU. Canon EF17-40LU 16 páginas. 40mm usm ef lens

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The infrared index corrects the focus setting when using
monochrome infrared film. Focus on the subject
manually, then adjust the distance setting by moving the
focusing ring to the corresponding infrared index mark.
• The compensation amount differs depending on the
focal length. Use the indicated focal length as a
guide when setting the compensation amount.
o
Some EOS cameras cannot use infrared film. See
the instructions for your EOS camera.
[l] •
The infrared index position is based on a
wavelength of 800 nm.
• Be sure to observe the manufacturer's
instructions when using infrared film.
• Use a red filter also when you take the picture.
The EW-83E hood can keep unwanted light out of the
lens, and also protects the front of the lens from rain,
snow, and dust.
To attach the hood, align the hood's attachment
position mark with the red dot on the front of the lens,
then turn the hood clockwise until the lens's red dot is
aligned with the hood's stop position mark.
The hood can be reverse-mounted on the lens for storage.
o ·
Part of the picture may be blocked if the hood is
not attached properly.
• To attach (remove) the hood, grasp the base of
the hood and turn it clockwise
(counterclockwise). Do not hold the hood by the
outer rim as this could result in the hood being
distorted if too much pressure is applied.
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