Canon EF 24-70mm f/4L IS USM: 4L IS USM 抵港曝光、新鏡搶先睇 Canon 今年於 24-70mm 焦段鏡頭的開發可謂特別的進取，繼有 f/2.8 鏡皇 EF 24-70mm f2.8L II USM
On your 5D II, attach the lens you want to adjust (e.g. your EF 24-70mm f/2.8L) Wheel over to option #8 labeled AF Microadjustment. You probably want to pick option 2:Adjust by lens. Press the "Info" button on the left of the display -- this will let you register the settings for the currently attached lens.
L-series build quality. The EF 24-70mm f/2.8L II USM is robust enough for daily professional use. Weather sealing protects against dust and moisture, while a fluorine-coated front and rear elements are easy to clean. USM autofocus. Aring-type ultrasonic AF motor achieves focus quickly, quietly and accurately.
EF12 II 24mm 178 190 0.63 0.50 70mm 259 523 0.45 0.18 EF25 II 24mm 使用できません 70mm 229 331 0.74 0.41 正確なピント合わせのため、MFをおすすめします。 7. フィルター（別売） フィルターは、レンズ先端のフィルター取り付 けネジ部に取り付けてください。
EF 24-70mm f/2.8L USM II. 其中紅字的部份就是該鏡較突出的部分，二代鏡在前玉及後端的鏡面均加上了特殊氟塗膜，具有高度防污的特性；使用超級UD（超級超低色散）鏡片，在面對反差過大的場景時，更能抑制色散情形；光圈葉片從8片增加至9片，雖然都屬於圓形
. 208 185 55 170 90 477 191 26
canon ef 24 70mm f 4 l ii usm
