Tamron sp 24

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Tamron was first.Many of us had long-wanted a 24-70mm lens with both an f/2.8 aperture và image stabilization, but until the Tamron 24-70milimet f/2.8 Di VC USD Lens was introduced in 2012, we had lớn choose one or the other. Since that lens was introduced, other manufacturers have slowly been providing us their own versions of this awesome combination.Following Nikon, the latest-prior version of this lens Mã Sản Phẩm was the Sigma 24-70milimet f/2.8 DG OS HSM Art Lens, which, with Sigma"s reputation for the Art series lenses, quickly became a highly-anticipated Model.Sigma announced that lens and roughly only 5 weeks later, Tamron announced their second version, bringing the "G2" treatment lớn this highly desired lens Mã Sản Phẩm.

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How does the Tamron 24-70mm f/2.8 Di VC G2 Lens perform?That"s what I wanted lớn know và here is what I learned.

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Focal Length Range

Although a specific focal length range is seldom a distinguisher between brands & models, focal length range remains a primary lens selection attribute.Focal length is especially important in that it drives focus distance choices, which in turn determine perspective for the desired composition.

The 24-70milimet focal length range, considered "normal" & covering angles of view ranging from wide angle through short telephoto lớn, is an ikhuyễn mãi giảm giá choice for a general purpose lens.Practically all kits can make use of a lens covering this range & the uses for the lens are essentially endless.

A 24-70milimet lens is an essential part of many landscape and cityscape photography kits.At the 24milimet kết thúc, this lens provides a very wide angle of view, able lớn simply take in a vast scene and/or to lớn show a svào perspective sầu, creating a sense of presence in an image.At the same time, 24mm is not so wide that composition becomes overly challenging.

Using the 70milimet over of the focal length range, smaller portions of a scene can be isolated.Distant mountains will appear larger in proportion lớn closer elements and closer details can be focused on.

A 24-70milimet lens is practically a requirement in a wedding photographer"s kit and an f/2.8 version of this lens often becomes the most-used option in such a kit.At 24milimet, environmental portraits that include the venue can be captured and by 70mm, people can be framed tight enough for head & shoulder portraits while retaining pleasing perspective sầu (including normal-sized noses).This lens will work well for photographing a wide variety of events, from parents capturing informal birthday parties at trang chủ lớn photojournalists covering formal galas at large venues.

Architecture photographers are typically looking for linear-distortion-free lenses lớn keep their buildings & walls straight & though prime lenses are often utilized for this purpose, zoom lenses nearly always have near-distortion-không lấy phí focal lengths ikhuyến mãi for such work.Selecting the lowest distortion focal length (in the low 30s) takes care of the distortion problem (và removal during post processing is always an option at other focal lengths).

Sports photographers able khổng lồ get cđại bại khổng lồ their subjects (such as basketball shot from over or under the net) or wanting khổng lồ capture a wider/environmental view of their events appreciate this focal length range.This focal length range especially complements a 70-200mm lens for sports uses.

Fashion, portraiture, weddings, parties, events, documentary, lifestyle, travel, sports, architecture, land/city/nightscapes, around-the-house needs, general studio applications including product photography and much more.I"m just getting the các mục of uses for this lens started & the range of đoạn phim uses for this lens is as broad as for stills.

Framing narrower on ASP-C (1.6x) cameras (full frame 36-105milimet equivalent angle of view), the 24-70mm lens" uses shift away from wide angle landscapes/cityscapes/nightscapes & environmental portraits toward portraiture including more tightly-framed portraits.Most of the uses for this lens on an APS-C camera remain the same otherwise.

Here is an example of what this focal length range looks like:

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For a variety of other examples, visit the many other 24-70milimet lens Reviews on the site.

I seldom leave home page without having this focal length range covered and such a lens is quite often mounted for around-the-trang chính photography.

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Max Aperture

With a few exceptions, f/2.8 is the widest aperture available in a zoom lens & majority of those exceptions cover only the smaller APS-C image circle.And, as of Đánh Giá time, none of the wider-than f/2.8 full frame options reach beyond 35mm.So, the f/2.8 aperture made available over the entire 24-70milimet focal length range is, for the most part, the best-available.This is a bright lens, significantly brighter than the lenses included in camera kits, significantly increasing its versatility by comparison.

A big advantage of a wide aperture is the amount of light transmitted khổng lồ the imaging sensor, allowing for lower ISO settings & allowing for shutter speeds capable of stopping both camera and subject motion blur in low light.I typically recommover f/2.8 as the minimum aperture opening for indoor sports such as basketball.Also, lenses with an opening wider than a specific aperture (usually f/2.8) enable the higher precision AF capabilities (most often the center AF point) in some cameras và present a brighter viewfinder image than narrower aperture alternatives.

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A disadvantage of a wide aperture is the increased physical size of the lens elements that are accompanied with a larger kích thước, heavier weight and a higher cost.

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Another big wide aperture advantage is the shallow depth of field available at the widest aperture, enabling distracting background details lớn be rendered out of focus if desired, isolating the subject through the use of shallow depth of field.The example above was created at this lens" minimum focus distance, 70mm & f/2.8, illustrating the maximum amount of background blur this lens is capable of.

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Image Stabilization

Having a wide aperture is a great advantage for any lens, increasing its usefulness in low light, but VC (Vibration Compensation) significantly increases its versatility, improves its usability và, in many situations, greatly improves the image quality it delivers.

As already discussed, the prior version of this lens (we"ll Hotline it the G1) also had VC.Featuring dual MPUs (micro-processing units), the G2 is now able khổng lồ dedicate one MPU solely khổng lồ vibration compensation, providing a more-consistently powerful compensation effect.The G2 is rated for an incredible 5-stops (CIPA) of assistance, theoretically making the new lens handholdable in 1/2 as much light as its predecessor.

In practice, under ikhuyến mãi conditions, using an ultra-high resolution Canon EOS 5Ds R (higher resolution means a camera must be steadier to lớn avoid blur), most of my 24milimet images were sharp at 1/4 second exposures.The keeper rate was still over một nửa at .3 seconds with blurred results becoming far more probable at longer exposures.

At 70mm, essentially all images were sharp at 1/6 second exposures with a noticeable drop-off in sharpness rate seen at 1/4 second.At exposures longer than 1/4 second, most images were more blurred than I find acceptable for most uses.Curiously, nearly all of my .4 second demo results were sharp along with some .5 second images.Either I was really on my game during that phối, or there is a sweet spot in the system.

Photographing outside, perhaps in the wind or with unstable footing?Expect lớn need faster exposures than those I am reporting.But, also expect a similar amount of assistance from VC as it is still similarly và significantly compensating for shake.

While VC is great for reducing camera shake in images, it is also very helpful for critically framing a scene.Having the viewfinder view stabilized permits the shutter release lớn be timed with the ikhuyến mãi composition.

In this system, the image in viewfinder remains very stable when VC starts.A light sound is heard when VC is activated and again when it is deactivated, but it is hard to lớn hear the light whirring and clicking when VC is active sầu unless one"s ear is immediately next khổng lồ the lens.Drifting of the subject framing while VC is active is not a problem và I vày not find myself fighting against VC while recomposing or following a subject.

Handheld Clip recording is nicely assisted by VC.VC also provides a still subject to the camera"s AF system, permitting it khổng lồ vày its job better.

With the optional accessory Tamron TAP-in Console (more about this later), you can customize the configuration of VC.Options include Standard (default, balanced), Viewfinder image-stabilization priority (stabilization of viewfinder image is prioritized) or Capturing image-stabilization (stabilization of captured photograph is prioritized).

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Image Quality

Before moving into the image chất lượng analysis for this lens, let"s stop in at Tamron"s marketing department to lớn set our expectations especially high:

"The use of new specialized, high quality glass materials that offer greater optical transmittance are used in the new mã sản phẩm A032 khổng lồ ensure superior color reproduction and even greater sharpness.The A032 lens comprises 17 glass elements in 12 groups, including: 2 XR (Extra Refractive sầu Index) glass elements to counteract optical aberrations; 3 LD (Low Dispersion) elements to minimize axial chromatic aberrations that can occur with telephoto lớn ,as well as transverse chromatic aberrations that can be an issue with wide-angle; 3 GM (glass-molded aspherical) elements; & 1 hybrid aspherical lens element that effectively neutralizes spherical aberrations and distortions to lớn create superior image unique.Thanks lớn a combination of these special glass materials, the A032 achieves previously unseen levels of accurate color reproduction và depictive sầu performance."

Also: "The new A032 features Tamron’s original eBAND (Extended Bandwidth và Angular-Dependency) Coating, a công nghệ that combines an extremely-low-refractive-index nano-structured layer with conventional multiple-layer coating techniques lớn provide superior anti-reflection performance.The optimal application of this eBAND Coating in combination with Tamron’s BBAR (Broad-Bvà Anti-Reflection) Coating successfully và substantially curbs the ghosting & flare that can occur when photographing backlit subjects."

Surely you are pumped now.But, we need to keep perspectives grounded with the understanding that the 24-70 G2 uses the same optical design as the G1.

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In addition, the MTF charts for the two lenses appear identical.

Putting the Tamron 24-70milimet f/2.8 VC G2 Lens to the test ... the wide-open aperture center-of-the-frame results at f/2.8 are very sharp at 24milimet and 35mm.By 50milimet, a slight degradation is seen and at 70milimet, center-of-the-frame results are somewhat soft at f/2.8.In the wider half of the range, stopping down to lớn f/4 makes little difference in center-of-the-frame sharpness and really, none is needed.In the longer half of the range, especially at 70mm, stopping down khổng lồ f/4 brings a very significant improvement in image sharpness.This lens is very sharp in the center and mid-portions of the image circle at f/4 with little improvement seen at f/5.6 aside from the mid-frame areas showing slight further improvement at 70mm.

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Taking the testing outdoors, we next look at a pair of center-of-the-frame 100% resolution crops examples.These images were captured using an ultra-high resolution Canon EOS 5Ds R with RAW files processed in DPP (Digital Photo Professional) using the Standard Picture Style và sharpness phối to lớn only "1" (0-10 scale).


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