DPReview獨家取得了AF-S Nikkor 70-200mm f/4G ED VR的測試機會，
The new AF-S Nikkor 70-200mm f/4G ED VR is a compact, fixed-aperture F4 zoom designed for use on Nikon's new generation of FX format DSLRs. Smaller in all dimensions than its more costly F2.8 cousin, the slimmed-down $1400 lens has been long-awaited by Nikon users looking jealously at Canon's venerable EF 70-200mm f/4L IS USM.
新小小黑AF-S Nikkor 70-200mm f/4G ED VR是一支紮實、恆定f4變焦，
(期間忌妒得看著C家的EF 70-200mm f/4L IS USM)
Dpreview is at the Photo Plus Expo tradeshow in New York, and we were given an exclusive opportunity to get our hands on a pre-production sample of the new 70-200mm. Although we weren't able to save any images,
we were able to get a feel for the handling, the AF speed, and the efficiency of the claimed 5-stop Vibration
Dpreview出席了紐約的Photo Plus Expo ，我們獲得了獨家的機會可以實際把玩這棵70-200的原型款。
Starting with the handling, the first thing that you notice when you pick up the new lens is how small it is,
relative to Nikon's flagship F2.8 variant. Slimmer, lighter, and smaller in all dimensions, the new 70-200mm
F4 is a genuinely portable optic, and in terms of handling, an ideal companion for one of Nikon's smaller FX
DSLRs, like the D800/E or recently-announced D600. Something that's easy to miss in the spec-sheet is that
the new lens has a filter thread of 67mm, compared to the more common 77mm on other high-end Nikon
zooms. This makes it slightly but noticeably slimmer than Nikon's AF-S Nikkor 24-120mm f/4G ED VR zoom;
compared to Canon's equivalent model, it's about the same size, but around 90g / 3.2oz heavier. There's no
official word on exactly how weatherproof the new lens is, but there's the usual rubber gasket around the
mount, which makes a water and dust-resistant seal between camera and lens.
因此跟AF-S Nikkor 24-120mm f/4G ED VR相比，有些微但感受得到的纖細感。
On a D600, focusing feels all but instant (despite the insistence of Nikon reps that the sample we used was
'unfinished') and the zoom action is smooth and well-damped.
Because all of the lens movement (focus and zooming) is internal, the lens' dimensions never change.
The new AF-S Nikkor 70-200mm f/4G ED VR is comprised of 20 elements in 14 groups,
and features a constant aperture of F4. Internal zoom and focus means that its length doesn't change when zooming or focusing, and the closest focusing distance is 1 meter.
The tripod mount ring is an optional extra - yours for just $224.
新AF-S Nikkor 70-200mm f/4G ED VR是由20枚14群鏡片組成，f4恆定光圈，內對焦及內變焦，
Smaller in all dimensions than the more costly F2.8 70-200mm, the new F4 zoom is slimmer than the AF-S
Nikkor 24-120mm f/4G ED VR and about half as long again. It features a 67mm filter thread, unlike the more
standard (for high-end Nikkors) 77mm.
Mounted on a D600, the combination is surprisingly compact and very well-balanced.
In common with several recent high-end Nikon lenses, the AF-S Nikkor 70-200mm f/4G ED VR features a Nano Crystal coated element, which should reduce flare and internal reflections. Although not as versatile in poor
light as its 2.8 cousin, the new lens features an improved Vibration Reduction system which Nikon claims
should be able to deliver up to 5 EV of stabilization, potentially allowing you to get sharp pictures at shutter speeds as low as 1/6 sec at 200mm. Although this can't do anything about subject movement, it should greatly
expand the usability of the lens in marginal lighting conditions.
相同於其他Nikon最近的高階鏡頭，AF-S Nikkor 70-200mm f/4G ED VR 也有奈米水晶鍍膜，可以減低耀光與內反射。雖然不像它的f2.8親戚在低光下可以比較有彈性，但新的VR系統Nikon宣稱可以提供最高五級的穩定度，
We weren't able to save any images, but from a very quick test Nikon's claims of a 5-stop vibration reduction
don't seem entirely unreasonable. At 200mm, hand-held, we were able to get consistently sharp results from
shutter speeds at least as low as 1/15 sec, which matches the best lenses we've tested in the past.
Impressive stuff, and we can't wait to get a production sample in our offices for full testing.