SIGMA APO 70-200mm F2.8 EX DG OS HSM

[sosoli]

من از حدود 2 ماه پیش که تماس گرفتم هر بار یا همین جمله یا یک چیزی تو همین مایه ها جواب دادند . البته در مورد قیمت حدود 1250 گفته بودند . که با توجه به قیمت خرده فروشی جهانی عجیب به نظر میرسه و شاید به دلیل عدم ترخیص از گمرک باشه . البته این سیاست این شرکته که مشتری ها رو امیدوار نگه داره تا به سمت مارک اصلی نرند ولی به هر حال با قیمت 1700$ مطمئنا مارک اصلی بهتر خواهد بود .

[jebrahim]

من دیروز با سیگل تماس گرفتم..گفتند تا آخر هفته ترخیص میشه و قیمتش هم گفتند حدود 1.400.000 در ضمن با توجه به قیمتش به عنوان رقیب کانن و نیکون توی سایتهای دیگه ازش یاد شده...در ضمن 50-500 رو هم گفتند حدود 1.700.000 ..

این قیمت کمی عجیبه. یعنی سیگل این لنز رو 300$ ارزون تر از آمازون آمریکا میفروشه؟ اونم لنزی که تازه داره وارد بازار میشه و مسلما طرفدار زیادی خواهد داشت.
من لنز دیگه ای رو نمیشناسم که قیمتش در ایران تا این حد پایین تر از قیمتش در آمریکا باشه.

[KHAKSAR]

این قیمت کمی عجیبه. یعنی سیگل این لنز رو 300$ ارزون تر از آمازون آمریکا میفروشه؟ اونم لنزی که تازه داره وارد بازار میشه و مسلما طرفدار زیادی خواهد داشت.
من لنز دیگه ای رو نمیشناسم که قیمتش در ایران تا این حد پایین تر از قیمتش در آمریکا باشه.

سلام.
ایشون درست میگن. منم دیروز برای قیمت 16-8 تماس گرفتم(سیگل) گفتم قیمت اینم بپرسم. آقایی که جواب میداد درست همین قیمت رو به منم گفت. شک کردم دوباره به طور کامل مشخصات لنز رو براش گفتم و ایشون تآیید کردند. (بارمون اومده تو گمرکه و تا هفته بعد ترخیص میشه) حالا تا هفته بعد که ترخیص شد یهو قیمت بشه بیش از 2 میلیون تومن خدا داند.

[Madjidm]

من دیروز با سیگل تماس گرفتم..گفتند تا آخر هفته ترخیص میشه و قیمتش هم گفتند حدود 1.400.000 در ضمن با توجه به قیمتش به عنوان رقیب کانن و نیکون توی سایتهای دیگه ازش یاد شده...در ضمن 50-500 رو هم گفتند حدود 1.700.000 ..

50-500 سیگما در میهن مارکت 1085 هست!!!
اینجا

70-200
اینجا
من که گیج شدم

[Mehdi Rojaie]

50-500 سیگما در میهن مارکت 1085 هست!!!
اینجا

فکر کنم نسخه لرزشگیر دار منظورشون بوده.

[Haji Shahkaram]

نسخه لرزش گیر دار 50-500 در سایت آمازون 1600 دلار قیمت خورده و این قیمت عجیب نیست
اما قیمت 70-200 او اس عجیب است چون در امازون 1700 دلار قیمت خورده

[Mashhadi Vahid]

رویوی LensTip

http://www.lenstip.com/index.php?test=obiektywu&test_ob=263

Pros:

* good build quality,
* splendid image quality in the frame centre,
* very good image quality at the edge of APS-C/DX sensor,
* chromatic aberration well-controlled,
* slight distortion,
* low coma,
* slight vignetting on the edge of APS-C/DX sensor,
* good image stabilization,
* silent and efficient autofocus,
* generous selection of accessories (caps, tripod adapter, petal-type hood and a case),
* three-year-long warranty period with the possibility of extending it by two more years.

Cons:

* a bit too soft wide open at the edge of full frame,
* significant vignetting on full frame,
* cooperation with converter might have been better in some areas.


Compared to its predecessor, the new Sigma is certainly a big step ahead - it is better, often remarkably so, than the old version in practically every respect. The step is so big that the Sigma might now compete successful with the newest stabilized Canon and Nikon instruments. The flaws are still present, though, but they are generally difficult to avoid. The full frame edge near the maximum relative aperture wasn’t sharp also in the case of the more expensive Nikkor. The cooperation with the converter, listed under the cons, can be rather counted as the flaw of the converter itself. Its small dimensions seem to be the main factor limiting the performance of such a big and fast zoom lens. The huge vignetting of the lens-plus-converter set might prove this hypothesis. Canon and Nikon have refreshed the line-up of its converters not long ago, perhaps it’s time Sigma did something similar too?

One thing we didn’t enjoy was the unfavourable change of the minimum focus distance. All producers moved forwards on this matter, only the Sigma moved backward. As a result it lost the position of the leader, becoming the last one. The company it keeps is good, though, because it occupies the last position together with the Nikkor 70-200 VR II.

To sum up the Sigma seems to complement the journalistic zooms’ offer very nicely. It is a bit worse than the new Nikkor 70-200 mm f/2.8 VR II but it is also cheaper than that lens, a bit physically lighter and smaller. The comparison to the new Canon 70-200 mm f/2.8 IS must wait until one of next our tests, though.

[sosoli]

و در ادامه ریویو ها dpreview:

http://www.dpreview.com/lensreviews/...00_2p8_os_c16/

ابتدا میگه این اولین لنز تل فوتو لرزشگیر داره که یک سازنده third party میسازه و البته قیمتش نسبت به مشابه های کنونی و نیکونی پایین تر هست :

this being is the first image-stabilized fast telephoto zoom to emerge from a third-party lens maker

علاوه بر اون رینگ زوم را بر خلاف لنز های مشابه دیگه در جلوی لنز قرار داده بهمراه یک رینگ فوکوس باریک در وسط لنز.

Most notably, the zoom ring is positioned towards the front of the barrel, with the unusually slim manual focus ring immediately behind it

و در اخر هم نتیجه گیری ها

Conclusion - Pros

Very sharp across the frame when stopped down
Minimal color fringing/chromatic aberration of any description
Fast, silent, accurate autofocus with manual override
Very effective image stabilization
Decent build quality
Clever design tripod mount which is quick and easy to remove with the lens on the camera

Conclusion - Cons

Somewhat soft and low in contrast at F2.8 towards the edges, especially on full frame cameras
Can give somewhat harsh rendition of out-of-focus backgrounds at longer focus distances
No focus limiter switch
No weathersealing
Susceptible to flare with direct light sources in or close to the frame
Front-positioned zoom ring is inoperable when hood is reversed
Depth of field scale inaccurate at close focus distances



Overall conclusion

The Sigma 70-200mm F2.8 EX DG OS HSM is a bold attempt to challenge the quality and functionality of some of the very best lenses on offer today - the fast image-stabilized telezooms form Nikon and Canon. Overall, it has to count as a success: the image quality is very decent, especially when stopped down a bit, and those crucial focusing and stabilization systems work well.

The first thing many will look at when considering such a lens is of course sharpness, and this is probably the Sigma's weakest suit in comparison to its peers, as the latest Canon and Nikon 70-200mm F2.8s have set the bar extraordinarily high. It tends to be very sharp in the center of the frame even wide open, but somewhat soft and low in contrast towards the corners. However it improves dramatically on stopping down, giving truly excellent results across the frame by F5.6 - F8. But overall, it can't quite match the extraordinary clarity of its more expensive rivals.

Of course, sharpness isn't everything in defining image quality. Of particular note is the almost complete lack of chromatic aberration, which presumably is due to the use of the latest 'FLD' glass in the lens's construction. The resultant absence of color fringing is important as it means the images look extremely clean right across the frame, and this has a strong positive impact on the overall perceived image quality. Distortion is well-controlled too, although vignetting is above average for the class on full frame. Out-of-focus backgrounds are generally rendered quite attractively too, although at longer focus distances they can become somewhat harsh.

The build quality is also impressive. You may not get the same bomb-proof metal construction and weathersealing as the (much more expensive) Canon and Nikon alternatives, but the lens feels well put-together with a high standard of fit and finish. It's also nice to see that Sigma has retained the clever tripod-mount ring from the previous design, which makes switching the lens on and off a tripod a breeze.

The lens's handling and ergonomics are, however, slightly unconventional, as a direct result of the optical design (which places the focusing group behind the zoom group). Most obviously, the zoom ring is situated towards the front of the barrel in a position more conventionally occupied by the focus ring, which is now placed more centrally. We had no real problems with this in normal use, but could envisage it being annoying to photographers who regularly use manual focus and are used to a more standard layout. The other irritation - and it's no more than that - is that the zoom ring is completely blocked and inoperable when the hood is reversed, which can hinder getting quick grab shots.

Another consequence of the rear-focus design is the increased minimum focus distance, and lower maximum magnification, compared to Sigma's previous 'Macro' 70-200mm F2.8 designs. This is worth bearing in mind of you shoot a lot at close distances, but to be honest we were never that impressed with the close-focus image quality of the older lens anyway, due to strong color fringing and focus shifts on stopping down.

Sigma has clearly been working hard in the lens's stabilization and focusing systems, and we found that both performed extremely well. The HSM focusing was always an attractive feature of Sigma's older 70-200mm F2.8, and that certainly remains the case here. We spent an evening shooting fast-moving track cyclists using the Canon EOS 7D and the return of in-focus keepers was very impressive, even when tracking focus at 7 fps. Likewise with static subjects focusing was fast and highly accurate, with no evidence for any systematic errors at all. However sports shooter should be aware that there's no focus limiter switch.

Of course the big news with this lens is the addition of optical stabilization, for the first time in a third party fast telezoom. We're pleased to report that it works very well - it's perhaps not quite as adept as the very best systems from Canon and Nikon at providing absolutely pixel-sharp results at slower shutter speeds, but you have to look very closely to notice. For most output sizes, the results will be as close as makes no practical difference.

Aside from this, there are just a couple of nitpicks. Sigma unusually marks a depth of field scale on the lens, which is only really for use at 70mm, but in this case it's highly inaccurate and over-optimistic at close distances. Now we can't imagine many users will rely on this for setting focus as a matter of course, but any who are tempted by the generous depth of field apparently on offer will be disappointed. We also found that the APS-C hood extension, while a good idea in principle, was over-fiddly to use in practice, with a bad habit of ending up stuck inside the main hood (it really needs to lock onto the lens). However it must be stressed that neither of these points make the lens any less useful than competing designs - it's more a case of Sigma trying to offer something extra to its customers, just in a not-wholly-successful fashion.

Overall, then, the 70-200mm F2.8 OS HSM is a fine lens, that offers functionality and image quality close to the equivalents from Canon and Nikon at a distinctly lower price. For some users, the features that it lacks (such as weathersealing and a focus limiter switch), along with the slightly less impressive optics, may well be deal-breakers. Likewise, it almost goes without saying that Sony and Pentax owners happy to rely on their camera's in-body image stabilization systems will find better value elsewhere. But for anyone else, it's worth a very serious look.

و نشان سیلور از dp برای این لنز:

[king4]

ریویو این لنز در سایت slrgear.com

http://www.slrgear.com/reviews/showp...ct/1328/cat/31

[BERLANO]

رویو لنز توسط جوزا

Sigma 70-200 f/2.8 OS HSM Review