[PConline evaluation] Big three lens has always been the focus of SLR camera lens upgrade specifications, the big three yuan specifications in charge of a telephoto lens is 70-200mm F2.8, in recent years, manufacturers update the frequency of this lens specification is obvious In addition to the camera manufacturers themselves, the lens manufacturers have also made efforts to produce products of this specification. Many models of 70-200mm F2.8 lenses have been introduced before and after, and today we are talking about Tamron's latest SP 70-200mm F2. 8 Di VC USD G2 (model A025) lens, this is a new and improved big three yuan telephoto lens.
First, after the first evaluation
Tamron SP 70-200mm F/2.8 Di VC USD G2 Reference price: Loading... Image reviews Overview of quotation parameters
Everyone saw Tamron, Sigma camera manufacturers, the brain often uttered a word: vice factory lens. Accompanied by the cheap, workmanship, but the image quality is also good, good impression of the price. These are, of course, the results obtained when compared to original lenses of the same specifications. In fact, these lens manufacturers' products have always been of good quality, and the price is a lot lower than the original lens, will come to the fore in all kinds of competition, and play their own. Today, every lens manufacturer is strengthening its product quality. For Tenglong, a large number of SP series high-end lenses have been introduced over the years. From the workmanship to the imaging quality, it is necessary to exceed the length of the old models, and the images on the tall ones. Gradually formed. Let more friends who buy the Tenglong lens no longer use the eyes of the original factory and deputy factory to choose the lens, but use hard power such as quality, workmanship, and imaging to select the lens they like.
The SP 70-200mm F2.8 Di VC USD G2 lens is the latest generation of large three-element long-distance zoom lens introduced by Dragon. The lens of this specification is a must-see for manufacturers. For professional users, the 70-200mm F2.8 specification The lens is a must-have item, especially a reporter friend, whether it can quickly capture close-up shots, and many times rely on this size of zoom lens. Tamron naturally can not neglect the product of this specification.
The new Tamron SP 70-200mm F2.8 Di VC USD G2 lens has been deeply improved from the inside out, the lens uses more special lenses, and the appearance is changed to the new style of the Tamron SP series lens, mirror The body also becomes a metal material with strong texture and better stability. Professional users who demand professionalism naturally have more appetite.
Second, the Dragon SP 70-200mmF2.8Di VC USD G2 Appreciation
Tamron SP 70-200mm F2.8 Di VC USD G2 lens uses 17 groups of 23 lens structures, the same structure as the previous generation mirror, but the lens selection is completely different, the new lens uses an XLD ultra-low dispersion lenses and 5 LD low dispersion lens, a LD low dispersion lens than the old lens, and optimized the tuning of some mirror groups. The 77mm filter aperture of the front lens unit is standard on the large three-element telephoto lens, and the classic Yellow Green coating color of Dragon is very eye-catching.
The front end of the Tamron SP 70-200mm F2.8 Di VC USD G2 lens does not look carefully to ignore a detail. In fact, the front-end part is covered with rubber, and the front end of the rubber material has the function of anti-slip and buffer shockproof. In case of accident, it can slow down the damage to the lens. Because the same black, it is not easy to see if you do not look carefully.
Black polished and matte metal body with two textures together, the visual impact is very strong, the lens uses internal zoom design, the overall seal is better, the lens is relatively not easy to enter the gray, the ring with a dense tooth rubber material design The anti-slip property is good, and the damping of rotation is also very high-end lens feel, and the rotation is more gentle and comfortable. The zoom ring is set at the front end, and there are more handshaking positions in the front and rear positions, and it is not easy to misoperate.
Tamron's new SP series lenses are made of bright gold decorative rings. The pale gold circle has become a symbol of a new generation of Dragon high-end lenses. It is very recognizable and has the same degree of recognition as Canon's red circle.
Rear lens group Tamron SP 70-200mm F2.8 Di VC USD G2 lens diameter is not large, but a variety of details workmanship is in place, the lens bayonet position has a rubber seal, to ensure that the seam position is not invaded by dust, rear mirror group Sealed lenses are also provided to ensure the internal seal of the lens assembly. These features have surpassed the original camera.
The new design of the lens shape, I think that incorporates more stylish elements, the key lever is wide and clear, and it is not easy to use. The most important thing is good-looking, compared to the appearance of the old models, the new Tamron SP 70-200mm F2.8 Di VC USD G2 lens is more modern.
Tenglong SP 70-200mm F2.8 Di VC USD G2 lens tripod ring is large, can be mounted on the fuselage even can be placed flat on the level surface, front and rear balance and support surface are enough to reduce the possibility of accidents may occur.
Another point is that the tripod ring of the Tamron SP 70-200mm F2.8 Di VC USD G2 lens is a self-contained quick-loading design. The bottom of the tripod ring can be designed to mount the lens directly on the clip-type head without additional requirements. The quick plate is installed to increase the operating speed using the stand.
Mirror body DESIGNED IN JAPAN and MADE IN CHINA logo can see its place of production, Tamron SP 70-200mm F2.8 G2 lens is a domestic production of the lens, big ternary lens production in China, means that the domestic lens assembly production process has reached At a new level, more and more manufacturers are willing to set up factories in China to produce high-end lenses.
Tamron SP 70-200mm F2.8 G2 lens hood is made of plastic material, the inside of the matte thread design, intended to reduce stray light, lotus shape hood side wall is straight, this and Canon new white lens hood The shape is the same. After installing the hood, the overall shape of the Tamron SP 70-200mm F2.8 lens becomes more powerful. All black lens design is very domineering.
Third, Tamron SP70-200mmF2.8Di VC USD G2 sharpness test
The following screenshot shows the red box as shown above
F4 
F5.6 
F8.0 
F11 
F16 
F22
At 70mm, the sharpness of the Tamron SP 70-200mm F2.8 G2 lens is relatively stable. The highest sharpness is achieved at F8, the maximum aperture is slightly better than the minimum aperture, and the overall sharpness performance is relatively stable without sharpness. Obvious drop in aperture section. The sharpness of the edge is excellent in the large-aperture telephoto lens, especially when the F8 with the highest sharpness is very good, which is almost the same as the central sharpness.
The following screenshot shows the red box as shown above
F4 
F5.6 
F8.0 
F11 
F16 
F22
The sharpness of the 200mm telephoto end is slightly worse than that of the 70mm end, and the highest sharpness is also achieved at the F8. The 200mm end edge quality degradation is more pronounced than the center. The overall sharpness is in an acceptable range and there is no outstanding performance.
Fourth, Tamron SP70-200mmF2.8Di VC USD G2 dark corner test
Tamron SP70-200mm F2.8 VC G2 lens dark corner test (70mm end)
F2.8 F4 
F5.6 F8 
F11 F16 
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F22 - Tamron SP70-200mm F2.8 VC G2 lens dark corner test (200mm end)
F2.8 F4 
F5.6 F8 
F11 F16 
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F22 -Due to Canon's body does not support the lens trimming of the Dragon SP70-200mmF2.8Di VC USD G2 lens during the trial, so the vignetting of the real shot is quite obvious, the 70mm end is slightly more than the 200mm end, and the loss of light range is much smaller The aperture of both focal lengths will have to be significantly reduced after F5.6. Because the fuselage does not support correction of edge loss, it needs to be corrected later in the computer. However, in actual shooting, the situation of vignetting is less noticeable than testing, and it is acceptable.
V. Tamron SP70-200mmF2.8Di VC USD G2 background blur test
Tamron SP70-200mm F2.8 VC G2 lens bokeh test (70mm end)
F2.8 F4 
F5.6 F8 
F11 F16 
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F22 - Tamron SP70-200mm F2.8 VC G2 lens bokeh test (200mm end)
F2.8 F4 
F5.6 F8 
F11 F16 
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F22 -The purpose of many people to buy 70-200mm F2.8 lens is to shoot portraits, there is no doubt that this size of the telephoto zoom lens has a very beautiful background blur effect, and the edge is very sharp. Tamron SP 70-200mm F2.8 G2 lens, whether it is 70mm or 200mm end, under the large aperture of the background blur effect is very good, point light can also be blurred into a beautiful spot. Easy to take close-up photos, nature is a weapon for portrait shooting.
Six, Tamron SP 70-200mm F2.8 G2 lens proofs Appreciation
All original proofs please click: http://dp.pconline.com.cn/sphoto/3763848.htmlView
1, landscape
The long-range telephoto shooting landscape photos, the biggest feature is horizontally vertical, Tamron SP 70-200mm F2.8 G2 lens almost no distortion, so when shooting scenery photos can have better restore the performance of the scene, sharpness details and color Performance is very consistent with the dragon. Colorful but not oversaturated. The details are also in place. The sharpness under 100% artwork is very high.
2, close-up
The closest focusing distance of the Tamron SP 70-200mm F2.8 G2 lens is only 0.95m, which is very rare in this specification lens. Therefore, the limitation when using it is much less than the common large three-element lens. Even if the subject is close to oneself, it can still focus normally. Bring convenience to close-ups.
3, Portrait
In terms of portrait shooting, the 70-200mm F2.8 lens has always been good at portrait themes. The Tamron SP 70-200mm F2.8 G2 lens also performed equally well. The effect of JiaoRong milking is self-evident and is also a professional portrait photographer for many years. Favored effect. In terms of color, using Canon's body, the color of the skin is very natural and there is no inappropriate color cast.
Seven, PConline evaluation room summary
Tamron SP70-200mm F2.8 VC G2 lens advantages and disadvantages summary advantages and disadvantages
70-200mm F2.8 big ternary lens, each one is trying to do it well, as one of the most important zoom lens, Tamron this new Tamron SP 70-200mm F2.8 G2 lens is also down Heavyweight, there is a new look. And the price is not to 9,000 yuan, compared to the Canon with the specifications of the lens, to 4,000 yuan cheaper, the difference is enough to add a few fixed-focus lens. The benefits of the Tamron lens have once again been confirmed. In the past, Tenglong had a large gap with Canon and Nikon's original lens. Simply speaking, it was not handsome enough. This time Tamron's SP 70-200mm F2.8 G2 lens with all-metal lens body, plus stylish design elements and Shiny gold logo design. It also kills the original in appearance, and has to say that it is a very comprehensive upgrade.
Of course, Tamron SP 70-200mm F2.8 G2 lens is not a disadvantage, after all, non-Canon lens, the lens data support will certainly lag behind the original product, because there is no body lens correction support, Tamron SP 70-200mm F2 The vignetting angle under the large aperture of the .8 G2 lens is quite obvious. Although it can be adjusted later, it has one more process after all. In general, this lens can be purchased for less than 9,000 yuan. It can achieve the same shooting effect as a Canon white rabbit. It is a very cost-effective thing.
Tamron SP70-200mm F2.8 VC G2 Lens Sharpness Test (70mm end) Aperture Center (Screenshot One) Edge (Screenshot Two) F2.8 F4 F5.6 F8.0 F11 F16 F22
Tamron SP70-200mm F2.8 VC G2 Lens Sharpness Test (200mm end) Aperture Center (Screenshot One) Edge (Screenshot Two) F2.8 F4 F5.6 F8.0 F11 F16 F22
Tamron SP70-200mm F2.8 VC G2 lens dark corner test (70mm end) F2.8F4 F5.6F8 F11F16 -
F22-Dragon SP70-200mm F2.8 VC G2 lens dark corner test (200mm end) F2.8F4 F5.6F8 F11F16 -
F22-Dragon SP70-200mm F2.8 VC G2 lens background blur test (70mm end) F2.8F4 F5.6F8 F11F16 -
F22-Dragon SP70-200mm F2.8 VC G2 lens bokeh test (200mm end) F2.8F4 F5.6F8 F11F16 -
F22-Tamron SP70-200mm F2.8 VC G2 lens advantages and disadvantages summary advantages and disadvantages
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