Canon EF-S 17-55mm f/2.8 IS USM Review
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|35mm film equivalent focal length||27-88|
|Angle of view (horzntl, vertl, diagnl)||
48º - 15º 40',
68º 40' - 23º 20',
78º 30' - 27º 50'
|Lens construction (elements/groups)||19/12|
|No. of diaphragm blades||7|
|Closest focusing distance (m)||0.35|
|Maximum magnification (x)||0.17 (at 55mm)|
|AF actuator||Ring USM¹|
|Filter diameter (mm)||77|
|Max. diameter x length (mm)||83.5 x 110.6|
|Magnification - Extension Tube EF12 II||0.45-0.23¹|
|Magnification - Extension Tube EF25 II||1.71-0.51|
|Lens Cap||E-77U / E-77II|
|Extenders EF1.4x II and EF2x II||Not compatible|
|AF actuator||¹ Mechanical full-time manual focusing built-in|
|Magnification - Extension Tube EF12 II||¹ Only compatible at tele|
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