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رضا اين لنز از نظر اپتيکي مخصوصا در گوشه ها با توجه به ريويو ها ي سايت ها برتري هايي به نسخه قبلي دارد منتها واقعي نبودن 200 ميليمتر اين لنز که سايت SLRGear مطرح ميکنه تا حدودي اين لنز رو زير سئوال ميبره نميدونم دوستمون انوش که اين لنز رو خريده در عمل به همچين نتيجه اي در قياس با لنز قبليش رسيده يا نه
به نظرم امسال ورژنهاي ديگر اين لنز وارد بازار هم خواهد شد
درود
من تازه امروز از مسافرت برگشتم و هنوز فرصت تست کلی را پیدا نکردم. و البته از آنجایی هم که با ورژن قبلی آن کار نکرده بودم نمیتوانم در این خصوص چیزی بگویم اما با عکسهای اولیه ای که گرفتم خیلی راضی شدم. راستش بیشتر از خیلی
اما در خصوص فرق بین 200mm ورژن قبلی با جدید باید این نکته را در نظر بگیریم که Magnification ورژن جدید 1:8.3 است در حالیکه ورژن قبلی 1:5.6 که این موضوع از همین ناشی میشود.
اما همین را گفته باشم که به نظرم سرعت فوکاس آن تفاوتی با 24- 70 نداشته باشد. و اون رینگ جلویی که برای دوستان سوال بود چیست ، در واقع هیچ چیز نیست ، فقط برای در دست گرفتن لنز است.
انوش
سلام
رویوی این لنز روی فول فریم در فتوزون
کد:http://www.photozone.de/nikon_ff/511-nikkorafs7020028vr2ff
Verdict
The Nikon AF-S 70-200 VR II is a very good zoom lens that delivers excellent sharpness wide open already, at least in the image center. Vignetting is very well controlled and CAs as well as distortion are typical for a lens in this class. LoCAs are rather low and the bokeh is exceptionally smooth for a zoom lens.
For many the main question of course is: have the issues of the previous model, especially high vignetting and lack of border sharpness, been adressed. Well, yes, the vignetting is visibly lower at f/2.8 and the resolution figures in the image corners are also better compared to the mk I lens. However, in direct comparison these improvements come at the price of slightly reduced corner sharpness at f/2.8 at focal lengths below 200mm.
In addition, there's another issue we haven't talked about yet: the lens' maximum magnification. The 70-200 VR II increases the field of view with close focus. This is not uncommon, in fact any IF lens does this to a certain degree, but only a few do so at a similar amount. At minimum focus distance (MFD) at 200mm the 70-200 VR II provides an image angle equivalent to a 135mm lens.
This issue has been wildly discussed in the community after it was initially noted. While the lack of magnification is undoubtly a fact, anyone considering purchasing this lens should carefully check if it's really an issue for his/her kind of shooting. When shooting close to the MFD at the long end regularly the previous model is probably the better choice,since in this usage scenario its drawbacks, especially lack of corner sharpness, will hardly be an issue. For anyone usually shooting at longer distances the increase of the image field will be less of an issue since it's not much wider here compared to other lenses in this class.
There may be minor issues but the Nikkor is, nonetheless, highly recommended!
بررسی این لنز در LensTip
کد:http://www.lenstip.com/index.php?test=obiektywu&test_ob=258Pros:
* high build quality,
* splendid image quality in the frame centre,
* very good image quality at the frame edge,
* low chromatic aberration,
* slight distortion,
* well-corrected coma,
* low astigmatism,
* relatively well-corrected vignetting,
* fast, silent and accurate autofocus,
* efficient image stabilization,
* rich selection of accessories (caps, tripod adapter, petal-type hood, case).
Cons:
* edge of full frame is a bit too soft at the maximum relative aperture.
The previous version of the Nikkor 70-200 mm f/2.8 VR was praised by us. It would be difficult not to praise the new version, especially that in practically every category it gets better results than its predecessor. The differences are perhaps not huge but at this level it would be difficult to obtain such. In optics, if something is very good and you want to improve it further you need considerable financial outlays. At the beginning it seemed to be the case of the new Nikkor because the first plans concerning its price mentioned even 2800 $. That price tag was reduced very quickly, though, and now you can purchase the lens for about 2200 $ so for almost the same sum as buys you its predecessor.
To sum up if you need this type of lens and can afford it, you shouldn’t delay. You won’t regret your decision for sure.
سلام
لنز 200-70 ورژن جدید از لحاظ کیفیت تصویر با نسخه قبل فرقی هم کرده؟
حمید قاسمی
در لینک زیر می توانید sharpness و سایر ویژگی های دو لنز را با هم مقایسه کنید:
کد:http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=627&Camera=614&Sample=0&FLI=0&API=0&LensComp=621&CameraComp=0&FLIComp=0&APIComp=0