Canon EF 17-40mm f4L USM Manuel d'utilisateur

EF17-40mm f/4L USMInstructionENGCOPY

ENG-910.Close-up Lenses (Sold separately)Attaching a 500D (77mm) Close-up Lensenables close-up photography.The magnification will be as follows:• Can

ENG-1011.SpecificationsFocal Length/Aperture 17 – 40 mm f/4Lens Construction 9 groups, 12 elementsMinimum Aperture f/22Angle of View Diagonal: 104° –

© CANON INC. 2003CT1-8513-004 0812NiCOPY

ENG-1Thank 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 Mo

ENG-2a Safety Precautionsa Safety Precautions• Do not look at the sun or a bright light sourcethrough the lens or camera. Doing so could resultin loss

ENG-3NomenclatureDistance scale (→ 6)Focus mode switch (→ 5)Lens mount index (→ 4)Contacts (→ 4)Hood mount (→ 7)Focusing ring (→ 5)Gelatin filter hold

ENG-4See your camera’s instructions for details onmounting and detaching the lens.1.Mounting and Detaching the LensThe lens mount has a rubber ring fo

ENG-53.ZoomingTo zoom, turn the lens’ zoom ring.Be sure to finish zooming before focusing.Changing the zoom ring after focusing can affectthe focus.To

ENG-64.Infinity Compensation MarkTo compensate for shifting of the infinity focuspoint that results from changes in temperature.The infinity position

ENG-724You can attach filters to the filter mounting threadon the front of the lens.7.Filters (Sold separately)•To ensure dust- and water-resistantper

ENG-8There is a gelatin filter holder at the rear of thelens. Cut the gelatin filter to fit within the whiteframes. Then insert the gelatin filter int