EF17-40mm F4L USM Instruction Manual
Page 2
...Manual focusing is a highperformance wide-angle zoom lens. • "USM" stands for Ultrasonic Motor. Supplementary notes on using the lens and taking pictures. Ultrasonic motor (USM) for quick and quiet autofocusing. 3. Two aspherical elements and a Super UD element result in a nicer background blur. 5. The Canon EF17-40mm f/4L USM... is available after the subject comes into focus in this lens moves when focusing (zooming), you for purchasing a Canon product. and water-resistant performance. Conventions used in...
...Manual focusing is a highperformance wide-angle zoom lens. • "USM" stands for Ultrasonic Motor. Supplementary notes on using the lens and taking pictures. Ultrasonic motor (USM) for quick and quiet autofocusing. 3. Two aspherical elements and a Super UD element result in a nicer background blur. 5. The Canon EF17-40mm f/4L USM... is available after the subject comes into focus in this lens moves when focusing (zooming), you for purchasing a Canon product. and water-resistant performance. Conventions used in...
EF17-40mm F4L USM Instruction Manual
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2. Zooming To shoot in ONE SHOT AF mode, focus manually by turning the focusing ring. The focusing ring always works, regardless of the focus mode. To use only manual focusing (MF), set the focus mode switch to MF, and focus by pressing the shutter button halfway and turning the focusing ring. (Full-time manual focus) ENG-5 Changing the zoom ring after focusing can affect the focus. To zoom, turn the lens' zoom ring. After autofocusing in autofocus (AF) mode, set the focus mode switch to AF. Setting the Focus Mode 3. Be sure to finish zooming before focusing.
2. Zooming To shoot in ONE SHOT AF mode, focus manually by turning the focusing ring. The focusing ring always works, regardless of the focus mode. To use only manual focusing (MF), set the focus mode switch to MF, and focus by pressing the shutter button halfway and turning the focusing ring. (Full-time manual focus) ENG-5 Changing the zoom ring after focusing can affect the focus. To zoom, turn the lens' zoom ring. After autofocusing in autofocus (AF) mode, set the focus mode switch to AF. Setting the Focus Mode 3. Be sure to finish zooming before focusing.
EF17-40mm F4L USM Instruction Manual
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... look through the viewfinder while rotating the focusing ring. Infinity Compensation Mark Infinity compensation mark 5. Focus on the focal length. For accurate manual focusing on the distance scale. The infrared index corrects the focus setting when using infrared film. • Use a red filter when ... temperature. See the instructions for shifting of 800 nm. • The compensation amount differs depending on the subject manually, then adjust the distance setting by moving the focusing ring to observe the manufacturer's instructions when using monochrome infrared film.
... look through the viewfinder while rotating the focusing ring. Infinity Compensation Mark Infinity compensation mark 5. Focus on the focal length. For accurate manual focusing on the distance scale. The infrared index corrects the focus setting when using infrared film. • Use a red filter when ... temperature. See the instructions for shifting of 800 nm. • The compensation amount differs depending on the subject manually, then adjust the distance setting by moving the focusing ring to observe the manufacturer's instructions when using monochrome infrared film.
EF17-40mm F4L USM Instruction Manual
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There is recommended for magnified shots. ENG-8 EF12 II EF25 II 17mm 40mm 17mm 40mm Camera-to fit within the white frames. Filter Holder 9. 8. Extension Tubes (Sold separately) You can be used. • When you use a gelatin filter, ghosting may ... (mm) Magnification Near Far Near Far 155 159 0.83× 0.70× 206 271 0.59× 0.32× Incompatible 196 218 1.02× 0.70× Manual focusing is a gelatin filter holder at the rear of the lens.
There is recommended for magnified shots. ENG-8 EF12 II EF25 II 17mm 40mm 17mm 40mm Camera-to fit within the white frames. Filter Holder 9. 8. Extension Tubes (Sold separately) You can be used. • When you use a gelatin filter, ghosting may ... (mm) Magnification Near Far Near Far 155 159 0.83× 0.70× 206 271 0.59× 0.32× Incompatible 196 218 1.02× 0.70× Manual focusing is a gelatin filter holder at the rear of the lens.
EF17-40mm F4L USM Instruction Manual
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The magnification will be as follows: • Can be attached because there is no size that fits the lens. • Manual focusing is recommended for accurate focusing. 10. Close-up Lenses (Sold separately) Attaching a 500D (77mm) Close-up Lens enables close-up Lens 250D cannot be used at the 40mm end (magnification 0.30x - 0.08x) • Close-up photography. ENG-9
The magnification will be as follows: • Can be attached because there is no size that fits the lens. • Manual focusing is recommended for accurate focusing. 10. Close-up Lenses (Sold separately) Attaching a 500D (77mm) Close-up Lens enables close-up Lens 250D cannot be used at the 40mm end (magnification 0.30x - 0.08x) • Close-up photography. ENG-9