Canon EF 17-40mm f/4L USM Instrução - Página 2

Procurar online ou descarregar pdf Instrução para Lente de câmara Canon EF 17-40mm f/4L USM. Canon EF 17-40mm f/4L USM 12 páginas. Ultrasonic ef lens

Thank you for purchasing a Canon product.

The Canon EF17-40mm f/4L USM is a high-

performance wide-angle zoom lens.

• "USM" stands for Ultrasonic Motor.

Conventions used in this instruction

Warning to prevent lens or camera

malfunction or damage.

Supplementary notes on using the lens

and taking pictures.

Features

1. Two aspherical elements and a Super UD

element result in outstanding image

delineation.

2. Ultrasonic motor (USM) for quick and quiet

autofocusing.

3. Manual focusing is available after the subject

comes into focus in autofocus mode (ONE

SHOT AF).

4. A truly round aperture hole results in a nicer

background blur.

5. Tight seal structure ensures excellent dust-

proof and drip-proof performance.

• Since the front element of this lens moves when

focusing (zooming), you need to attach a Canon

PROTECT filter sold separately for adequate

dust- and water-resistant performance. Without

a filter, the lens is not dust or water-resistant.

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