Canon 2578A002 инструкция обслуживания

EF70-200mm f/4L USM Instruction ENG C OP Y[...]

ENG-1 The Canon EF70-200mm f/4L USM lens is a compact, high-performance telephoto zoom lens f or Canon EOS camer as. • "USM" stands for Ultr asonic Motor . Features 1. With fluorite and UD lens elements, outstanding image delineation is obtained. 2. Ultrasonic motor (USM) f or quick and quiet autofocusing. 3. Manual f ocusing is av aila[...]

ENG-2 a Safety Precautions a Safety Precautions • Do not look at the sun or a bright light source through the lens or camera. Doing so could result in loss of vision. Looking at the sun directly through the lens is especially hazardous. • Do not point the lens or camera at the sun or photograph it. This is because the lens concentrates the sun?[...]

ENG-3 Nomenc lature Distance scale ( → 6) Focus mode switch ( → 4) Lens mount index ( → 4) Contacts ( → 4) Focusing distance range selection switch ( → 5) Tripod mounting location ( → 8) Hood mount ( → 7) Zoom ring ( → 5) Filter mounting thread ( → 7) Focusing ring ( → 4) F or detailed inf ormation, reference page numbers are pr[...]

ENG-4 See your camera’ s instructions for instructions on mounting and detaching the lens. To shoot in autofocus (AF) mode , set the f ocus mode switch to AF . To use only manual f ocusing (MF), set the focus mode switch to MF , and focus b y turning the f ocusing ring. The f ocusing ring always w orks, regardless of the focus mode . 2. Setting t[...]

ENG-5 4. Zooming To z oom, turn the zoom ring. Be sure to finish zooming bef ore focusing. Changing the zoom ring after focusing can aff ect the focus . 1.2m 3m Y ou can set the focusing distance r ange to 1.2 m/3.9 ft. to infinity or 3 m/9.8 ft. to infinity . By setting the suitable f ocusing distance range , the actual autofocusing time can be sh[...]

ENG-6 5. Infinity Compensation Mark To compensate for shifting of the infinity f ocus point that results from changes in temperature. The infinity position at normal temperature is the point at which the vertical line of the L mar k is aligned with the distance indicator on the distance scale. 10 30 15 ft m 70 100 5 F or accur ate manual focusing o[...]

ENG-7 7. Hood The ET -74 hood can keep unw anted light out of the lens, and also protects the front of the lens from rain, snow , and dust. Attach and align the hood to the hood mount on the front of the lens, and turn the hood as shown by the arrow to secure it. The hood can be rev erse-mounted on the lens for s t orage. 1.2m 3m •P ar t of the p[...]

ENG-8 9. Using the T ripod Mount (Sold separately) Adjusting the Rev olving Mount This lens can be used with the A II (W) tripod mount r ing, sold separately . Y ou can loosen the orientation lock-knob on the tripod mount to allow it to rotate as needed to fit a par ticular camera model for s witching between v er tical and horizontal positions. De[...]

ENG-9 10. Extenders (Sold Separately) With Extender EF1.4X ll or EF2X ll attached, the lens specifications will change as follo ws: Item With EF1.4X ll Extender With EF2X ll Extender Focal length (mm) 98 – 280 140 – 400 Aperture f/5.6 – 45 f/8 – 64 Diagonal 25°20’ – 8°50’ 16°20’ – 6°10’ Angle of view V ertical 13°50’ – [...]

ENG-10 Y ou can attach Extension T ube EF12 II or EF25 II for magnified shots . The shooting distance and magnification are shown below . 11. Extension T ubes (Sold Separately) Camera-to-Subject Magnification Distance (mm) Near F ar Near F ar EF12 II 70mm 554 639 0.23 × 0.17 × 200mm 1015 3572 0.29 × 0.06 × EF25 II 70mm 423 428 0.39 × 0.35 × 2[...]

ENG-11 Specifications Focal Length & Max. Aperture 70 – 200 mm, f/4 Lens Construction 13 groups, 16 elements Min. Aperture f/32 Angle of View Diagonal: 34° – 12° V er tical: 19°30’ – 7° Horizontal: 29° –10° Min. Focusing Distance 1.2 m / 3.9 ft. Max. Magnification & Field of view 0.21 × ( at 200 mm ) , 300 × 450 mm – 114[...]

CT1-8507-004 © CANON INC. 2002 0812Ni C OP Y[...]