Foreword: After replacing the full-frame SLR with self, the APS-C format camera that was previously bought cheaply was crippled, leaving only the Sigma 35a, the Sigma 85a and the Canon 50 in its hands. Most hobby photographers who shoot private houses and occasionally take pictures outside are basically satisfied. However, if it is sometimes necessary to shoot products or videos at close range, it is very inconvenient to use these two lenses, so there is an idea of ​​thinking about a 24-70mm zoom lens.
I used the Sigma 35mm and 85mm two-art fixed-focus lenses. Although I am more confident with Sigma, I will give priority to Canon's original 24-70mm lens. At first, I felt that although F4 had IS image stabilization, I was afraid that the aperture would not be enough, and almost all of them were disassembled on the market, so they were excluded. The rest is the F2.8 aperture lens of one of Canon's "big three yuan", the red circle quality is really good, but the price close to 1W2 is a bit expensive for me, and there is no anti-shake, the lens was launched in 2012 It feels a little old, and it gives up in the belief that buying new ones does not buy old ones.
Tenglong and Shima have just launched the 24-70mm lens at the same time. But just the day before yesterday, they just saw Aunt Zhang pushing the horse's 24-70mm art lens. The original price was 8799. Now it costs only 7,999 yuan. It was cheaper than the 24-70 lens, and Shima's art series always gave me a good impression, so he chose him eventually. 7999 price minus the new user 30 yuan discount, plus 10 yuan freight, the transaction price of 7979 yuan.
Unpacking:
SF express is indeed fast enough, from Beijing to Guangzhou the next day. When I opened the courier box, I was shocked and placed an envelope with a letter on a thin bubble paper. Compared to milk tea or Amazon, Zhuo America's packaging is also enough to save, Tucao! !
The packaging style of the lens is the same as the lens of the previous Sigma series of art. It highlights the “SIGMA†brand in black and white on a white background and highlights the lens model in black and white.
On the front of the package is a red-colored, genuine, authentic circular sticker that feels like this paper should be able to stick to the opening of the case, as Canon or Nikon.
The family is the one who is most important to get together and take a picture! There are lenses, hoods, shockproof lens bags, manuals, warranty cards, etc. in the box.
Sigma 24-70mm F2.8 art lens body shot, with a rounded silver "A" logo underneath the lens, is a feature of the Sigma high-end lens art series, next to the focus distance indicating window, many high-end lenses have, and no What is surprising.
It doesn't look very big from the photos, so let's make a simple comparison with the Sigma 35a and 85a. The height of the Sigma 24-70mm is between the Sigma 35a and 85a, but its size is bigger than 35a. More than a circle.
Appearance details:
As a member of the ART series, the workmanship is as good as ever. The lens body is made of metal, and the black and white words are relatively low-key and high-end. Personally I think this kind of grayish black is better than the Dragon. Unfortunately, this lens does not have a focal length lock. When used for a long time or when the camera lens is lowered, the lens easily slides out.
The Sigma 24-70mm art lens does not use the legendary internal coke change design, but ordinary external coke. The biggest disadvantage of this design is that it is easy to push dirt, dust and other dirt into the lens. The lens zoom from 24 to 70mm is counterclockwise, consistent with Canon's direction, which is one of the reasons I prefer Sigma.
Sigma 24-70mm art front and rear mirror coating is green with a little yellow, the front mirror diameter circle is 82mm, remember to see clearly when buying a UV mirror!
Information about the specifications and model of the lens is engraved on the hood, which seems to have become a habit or sign of the Sigma lens.
The 24-70a rear mirror ring features a full metal design. For the Tucao lens material, only two SLD (Special Low Dispersion) lenses were used, and the best FLD (Fluorite-based Low Dispersion) lens was not used, which is a little regrettable.
The connection between the rear lens and the camera body of the 24-70a mirror is more than a black plastic ring than the previous generations of the art lens, which greatly increases the sealability between the lens and the body and improves the durability of the lens. I like this, my 35a and 85a. No yeah!
There are two switch buttons on one side of the lens. They are the control focus mode and the anti-shake switch. There are three kinds of focus modes of the lens: normal AF autofocus, MO manual priority focus, MF manual focus, but these two The toggle button feels harder.
Some people may not know MO manual priority focus mode, I briefly describe. After switching to the MO manual priority mode, the lens is still autofocus, but if you manually twist the focus ring during this process, it will automatically switch to manual focus mode.
The inner wall of the lotus-shaped lens hood kept the consistent style of the Sigma. The plastic wavy pattern was still used, but the handle was very firm and there was no such cheap feeling.
Scoring test:
I believe that many people like me, buy Sigma's art products are most worried about not the quality or workmanship, but the problem of coke. When I put the lens on the camera, the first thing to do is to test for the phenomenon of running out of focus.
I believe we all saw it, too! true! T! M! run! Jiao! The focus is shifted down to -1
I am worried that when I test my hand trembling, not correcting and other misoperation will lead to deviations in the test results, but also specifically put the tripod out and put it flat again after testing, really winning!
The third sheet (above) is my manual focus, this is no problem, it is certainly a problem with autofocus. Had to take the Sigma to sell it there next week, and then I might have an original one and write about the process and results of the Sigma after-sales.
Distortion test:
Aperture F2.8 fully open, 24mm wide-angle barrel distortion and vignetting is still more obvious, in the case of poor light, dark corner is particularly prominent.
The 70-mm pincushion distortion is not so obvious, but although the dark corners are reduced, there is still a little bit.
Anti-shake test:
1/10s shutter, 70mm focal length, turn off OS stabilization as shown below
After anti-shake is turned on
Although the defensive system of the deputy plant (officially stated as level 3) is inferior to the original one (officially declared as level 4), there are still some anti-shake effects, which can effectively increase the output rate under slow shutter speeds, and the effect on video is also used. Not bad.
Close-up proofs:
Close-ups are mostly used to shoot out of boxes and products, so they are still shot out to test. Deng Deng Deng! My sun goddess Leona appeared.
Original image 100% magnification
In fact, closing a small aperture, the picture quality and sharpness under F4.0 is still good, I think this lens is usually enough to pat out of the box and product features.
Portrait proofs:
The original plan was to take a portrait of the location. By the way, the effect of the camera's backlighting could be tested. However, Guangzhou just happened to hit a typhoon and it rained almost every day, so it had to be turned into a private portrait.
The picture above is the 24mm end, the picture below is the 70mm end. It is not difficult to see from these two pictures. It is also the full-open F2.8 aperture. When the 24mm sharpness is still relatively high, but the sharpness goes to 70mm is obviously reduced. a lot of.
When this set of pictures was taken on a cloudy day, the indoor light was not enough. Although this lens was fully open, it was still a bit difficult. In any case, it was easy to shoot a private house without 35a (which may be personal or habitual).
Night proofs:
Advantage:
1, the lens workmanship and quality are as always good;
2. The back mirror has an apron at the interface to prevent certain water droplets and dust;
3, the lens comes with three levels of OS image stabilization, the video mode has obvious effect;
4, there is MO manual priority focus mode;
5, the minimum focusing distance is 37cm, to meet the needs of close-up.
Disadvantages:
1, run coke! There is nothing to say about this. Maybe I won the prize.
2, heavy! 1020g
3, no focal length lock, may cause damage or loosening of the lens;
4, the aperture is only F2.8, the light is darker and more difficult to shoot;
5, sharpness is slightly weak, especially when F2.8 70mm.
Summary: Lens synthesis seems to be very cost-effective, compared to Canon F2.8 lens 1W1 + price, Sigma 24-70mm art has a constant aperture and anti-shake at the same level, while the picture quality is weaker than Canon F2.8, but There is no big gap, so there is still an advantage; if some small teams, since the media intended to shoot close-ups, studio shots, the comparison proposal is Canon F4, after all, F4 macro mode is very useful, plus a Sigma 35a Basically meet the needs. Ordinary households, this Sigma 24-70mm art daily on-hook to go out on the street or shoot family is enough.
Finally, thank you all for watching, VC love you! ~
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