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本帖最後由 netvictor 於 2010-9-18 12:58 編輯
EF 28-135 f/4L IS?
SEPTEMBER 17, 2010 CANON LENSES
From Photo.net
Apparently Canon is testing a new 28-135 Lens. This is a direct quote I received via email.
Canon is currently performing research, prototyping & testing new 28-135mm F4 L IS; less wide angle and more telephoto. Engineering says it would require 2 extra LD glass elements; shifting price to an additional $800 CAD of the original 28-135mm MSRP. such a lens would cost and estimated $1549 MSRP. It is also Canons next generation Image Stabilization will be released; called “IS2″, where the two additional long magnets are present, where larger float distance of separation between groups; yielding up to now 5 stops of effective stabilization; both in longitudinal and lateral vibrations will be dampened. IS2 will consume approximately 20% battery power.
Mount: EF
Focal length 28 – 135 mm IS2 II
Maximum aperture F4.0 w/ IS
Minimum aperture F22
Lens construction 21 elements in 14 groups
Diaphragm blades 8
Image stabilizer 4-stops tested
AF actuator Ring USM (full-time manual focus built-in)
Filter diameter 82 mm
Dimensions (dia x len) 88.5 x 112 mm
Weight 730g EST.
Canon is currently performing research, prototyping & testing new 28-135mm F4 L IS; less wide angle and more telephoto. Engineering says it would require 2 extra LD glass elements; shifting price to an additional $800 CAD of the original 28-135mm MSRP. such a lens would cost and estimated $1549 MSRP. It is also Canons next generation Image Stabilization will be released; called “IS2″, where the two additional long magnets are present, where larger float distance of separation between groups; yielding up to now 5 stops of effective stabilization; both in longitudinal and lateral vibrations will be dampened. IS2 will consume approximately 20% battery power.
佳能目前正在執行的研究,原型設計和測試新的28 - 135mm F4 L的鏡頭;少廣角和遠攝更多。 工程表示,將需要2個額外的鏡片; 28鏡頭 135mm建議零售價增加800美元。 這樣的鏡頭將成本及估計一五四九美元建議零售價。 這也是大砲下一代圖像穩定將於何時公佈;稱為“IS2的”,其中的兩個額外的長磁鐵都存在,其中較大的浮動分離群體之間的距離;高現在5級的有效的穩定;無論是在縱向和橫向震動會因此而黯淡。 IS2中會消耗大約 20%的電池電量。
http://www.canonrumors.com/ |
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