Canon EF 70-200 F4 L IS Lens Assessment
Canon EF 70-200 F4 L IS, one of famous telephoto lenses of the photography world today, is comprised of 4 main important parts which are lens construction, a lens body, IS (Image Stabilizer system) and an aperture. I have been using this lens for awhile and I would like to share my review into 4 important parts as listed below.
Firstly, the lens building consists of 15 lens teams and 20 lens parts with a filter diameter of 67 mm and it has a focal length range from 70 mm to 200 mm. Moreover, there are 2 UD (Ultra-low Dispersion) lens parts and 1 fluorite lens aspect which help dramatically mild dispersion, coloration steadiness, picture sharpness and a vignette while minimizing ghosting and flare. It has the closet focusing distance of 1.2 m and the maximum magnification of 0.21 m. It's used for dispersing mild reflected from objects into a picture sensor in a camera.
Secondly, with a total weight of 760 gram, the lens body has a diameter of 76 mm and a length of 172. It has a strong white magnesium alloy case with black rubber cover at a zoom ring and a focal ring and a red ring showing as the Canon professional lens, called L-series lens, around a front part of the lens. It is used to protect the lens elements, the aperture, dust and moisture from outside.
Thirdly, the aperture is fabricated from 8 circular diaphragm blades. Its most aperture (F-Cease quantity) is 4 and its minimum aperture (F-Stop quantity) is 32 throughout all focal length. Moreover, there is no an aperture ring in the back of the lens so the aperture should be adjusted by the camera only. Its capabilities are for controlling the quantity of lighting coming into the image sensor and depth of field.
Lastly, IS (Image Stabilizer system) accommodates a particular gyro system which shifts lens within the gyro system in the wrong way of hand shaking both x-axis and y-axis with the intention to compensate vertical and lateral movement of fingers while taking photos. Consequently, the motion of IS will cancel out hand shaking instructions and the sunshine coming into the image sensor will be steady. It is extremely useful when photographers would like to take photographs in low shutter speed situation and it offers an equivalent effect of shutter velocity approximately four stops.
With the IS, it helps significantly photographers get sharp pictures in low shutter velocity condition. In conclusion, the 4 foremost necessary elements of the Canon EF 70-200 F4 L IS lens which are the construction, the lens body, the IS (Picture Stabilizer system) and the aperture make this lens because the outstanding professional telephoto lens.
Firstly, the lens building consists of 15 lens teams and 20 lens parts with a filter diameter of 67 mm and it has a focal length range from 70 mm to 200 mm. Moreover, there are 2 UD (Ultra-low Dispersion) lens parts and 1 fluorite lens aspect which help dramatically mild dispersion, coloration steadiness, picture sharpness and a vignette while minimizing ghosting and flare. It has the closet focusing distance of 1.2 m and the maximum magnification of 0.21 m. It's used for dispersing mild reflected from objects into a picture sensor in a camera.
Secondly, with a total weight of 760 gram, the lens body has a diameter of 76 mm and a length of 172. It has a strong white magnesium alloy case with black rubber cover at a zoom ring and a focal ring and a red ring showing as the Canon professional lens, called L-series lens, around a front part of the lens. It is used to protect the lens elements, the aperture, dust and moisture from outside.
Thirdly, the aperture is fabricated from 8 circular diaphragm blades. Its most aperture (F-Cease quantity) is 4 and its minimum aperture (F-Stop quantity) is 32 throughout all focal length. Moreover, there is no an aperture ring in the back of the lens so the aperture should be adjusted by the camera only. Its capabilities are for controlling the quantity of lighting coming into the image sensor and depth of field.
Lastly, IS (Image Stabilizer system) accommodates a particular gyro system which shifts lens within the gyro system in the wrong way of hand shaking both x-axis and y-axis with the intention to compensate vertical and lateral movement of fingers while taking photos. Consequently, the motion of IS will cancel out hand shaking instructions and the sunshine coming into the image sensor will be steady. It is extremely useful when photographers would like to take photographs in low shutter speed situation and it offers an equivalent effect of shutter velocity approximately four stops.
With the IS, it helps significantly photographers get sharp pictures in low shutter velocity condition. In conclusion, the 4 foremost necessary elements of the Canon EF 70-200 F4 L IS lens which are the construction, the lens body, the IS (Picture Stabilizer system) and the aperture make this lens because the outstanding professional telephoto lens.
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posted by Marcondes Allen at 12:24 AM
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