簡短說明 Canon EF 70-200mm f/4L IS USM
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EF 70-200mm f/4L IS USM
簡短的編輯描述Canon EF 70-200mm f/4L IS USM
EF 70-200mm f/4L IS USM
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Canon EF 70-200mm f/4L IS USM:
Features
-L-series optics.
-Light and compact.
-4-stop Image Stabilizer.
-f/4 through zoom range.
-Fluorite and UD lens elements.
-Fast auto focus.
-Environmental seals.
-Super Spectra coatings.
-Circular aperture for pleasing background blur.
-Soft case and lens hood.
The professional’s lightweight IS telephoto zoom.
4-stop IS
The EF 70-200mm f/4L IS USM features the world's first 4-stop Image Stabilizer (IS). Ideal for handheld work, the exceptionally accurate and sensitive IS negates the need for a tripod in many conditions. Shutter speeds up to 4 stops slower than would be otherwise possible (e.g. 1/15 sec instead of 1/200) can be used with no perceptible increase in image blur. For stabilised panning, IS Mode 2 corrects only for unwanted vertical shake.
L-series quality
The lens embodies Canon’s highest standards of L-series optics, build quality, reliability and operability. Crisp, high contrast image quality is assured right across the frame and throughout the entire zoom range. A reliable partner in tough conditions, the metal and polycarbonate construction features special environmental seals to prevent the ingress of dust and moisture.
Lightweight
With a length of just 172mm and weighing only 760g, the EF 70-200mm f/4L IS USM is ideal for assignments where there is a need to travel light without compromising performance, operability or image quality.
Fixed aperture
With no change in aperture over the full focal length range, photographers can set exposure at the widest aperture and zoom through to 200mm without slowing shutter speed. Lens length remains constant during zooming and focusing.
Fluorite and UD lens elements
The lens incorporates a single Fluorite and two UD (ultra-low dispersion glass) lens elements to suppress secondary chromatic aberrations. The result is crisp, high contrast, undistorted images throughout the entire zoom range, without colour fringing at subject outlines.
Auto focus
A Ring-type USM (Ultrasonic motor) delivers responsive, high-speed, silent auto focus. Holding torque is excellent, stopping the focus lens group with precision and without overshoot. Full time manual focus override is available without switching out of AF. Minimum focus distance is 1.2m throughout the zoom range.
Super Spectra coatings
Optimised Super Spectra coatings and lens element shaping suppress flare and ghosting. Coatings also help achieve true colour balance and increase contrast.
Pleasing background blur
The Electro Magnetic Diaphragm (EMD) features an almost perfectly circular aperture to create an even and attractive blur from out-of-focus backgrounds.
Accessories
A cylindrical bayonet hood and soft case are included.
由製造商提供正式的市場行銷文檔％％title％％
Compact, manoeuvrable and lightweight, the world's first 4-stop Image Stabilizer lens also features the very finest in L-series lens optics to deliver stand out optical performance and operability.Features
-L-series optics.
-Light and compact.
-4-stop Image Stabilizer.
-f/4 through zoom range.
-Fluorite and UD lens elements.
-Fast auto focus.
-Environmental seals.
-Super Spectra coatings.
-Circular aperture for pleasing background blur.
-Soft case and lens hood.
The professional’s lightweight IS telephoto zoom.
4-stop IS
The EF 70-200mm f/4L IS USM features the world's first 4-stop Image Stabilizer (IS). Ideal for handheld work, the exceptionally accurate and sensitive IS negates the need for a tripod in many conditions. Shutter speeds up to 4 stops slower than would be otherwise possible (e.g. 1/15 sec instead of 1/200) can be used with no perceptible increase in image blur. For stabilised panning, IS Mode 2 corrects only for unwanted vertical shake.
L-series quality
The lens embodies Canon’s highest standards of L-series optics, build quality, reliability and operability. Crisp, high contrast image quality is assured right across the frame and throughout the entire zoom range. A reliable partner in tough conditions, the metal and polycarbonate construction features special environmental seals to prevent the ingress of dust and moisture.
Lightweight
With a length of just 172mm and weighing only 760g, the EF 70-200mm f/4L IS USM is ideal for assignments where there is a need to travel light without compromising performance, operability or image quality.
Fixed aperture
With no change in aperture over the full focal length range, photographers can set exposure at the widest aperture and zoom through to 200mm without slowing shutter speed. Lens length remains constant during zooming and focusing.
Fluorite and UD lens elements
The lens incorporates a single Fluorite and two UD (ultra-low dispersion glass) lens elements to suppress secondary chromatic aberrations. The result is crisp, high contrast, undistorted images throughout the entire zoom range, without colour fringing at subject outlines.
Auto focus
A Ring-type USM (Ultrasonic motor) delivers responsive, high-speed, silent auto focus. Holding torque is excellent, stopping the focus lens group with precision and without overshoot. Full time manual focus override is available without switching out of AF. Minimum focus distance is 1.2m throughout the zoom range.
Super Spectra coatings
Optimised Super Spectra coatings and lens element shaping suppress flare and ghosting. Coatings also help achieve true colour balance and increase contrast.
Pleasing background blur
The Electro Magnetic Diaphragm (EMD) features an almost perfectly circular aperture to create an even and attractive blur from out-of-focus backgrounds.
Accessories
A cylindrical bayonet hood and soft case are included.
簡短摘要說明 Canon EF 70-200mm f/4L IS USM:
這個 %%title %%規格表的簡短摘要是自動生成的，並使用產品標題和前6個關鍵指標。
Canon EF 70-200mm f/4L IS USM, 20/15, 1.2 m, 70 - 200 mm, Ring USM, 7.6 cm, 6.7 cm
完整摘要描述 Canon EF 70-200mm f/4L IS USM :
Canon EF 70-200mm f/4L IS USM. 鏡頭結構（元素/組）: 20/15, 最近對焦距離: 1.2 m, 焦距範圍: 70 - 200 mm. 自動對焦: Ring USM. 直徑: 7.6 cm, 濾波器大小: 6.7 cm, 長度: 17.2 cm. 放大倍率: 0.21 倍數
這是一個根據前五個產品規格組的前三個規格來 Canon EF 70-200mm f/4L IS USM 的自動生成的完整摘要。
