What are the telephoto lenses of SLR cameras?

In 20021year, Longteng and Sigma successively released Sony E-mount telephoto lenses150-500mf/5-6.7diiiivcvxd and150-600mf5-6.3dgdnos | sports. Since then, Sony users have more choices of native telephoto lenses. However, the two newly released telephoto lenses are similar to the specifications of Sony FE200-600mmF5.6-6.3GOSS. How should consumers choose the right lens?

20 19 June, Sony released two telephoto lenses-Fe 600 MMF 4g moss and FE200-600mmF5.6-6.3GOSS, in which FE200-600mmF5.6-6.3GOSS adopted 24 lenses 17 optical structure with a focal length of 200-600. Two magnifiers SEL 14TC and SEL20TC can be installed to enlarge the focal length to the maximum of 1200mm, and at the same time, the Quan Huafu will be kept and the dominant field of vision of Nikon P 1000 will be invaded. In addition, the price is only more than 10,000 yuan, far lower than the two models, so it has become the first choice for many A7 series bird users.

Sony Fe 200-600 MMF 5.6-6.3 Gauss

However, FE200-600mmF5.6-6.3GOSS is not perfect. Although its weight is only 2. 1KG, which is within the tolerance range of hand-held shooting, its length reaches 3 18mm, which is nearly 50% higher than that of 7202.8 and 140, that is to say, it can't be stored in a normal-sized photographic backpack with the fuselage. At the same time, locate the G head, the number of lens groups reaches 17, and there are many air surfaces. Needless to say, the quality of peso in Bai Wan is much worse, and the price is similar to that of FE65,438+000-400 MMF 4.5-5.6 GMOSS. In addition, the magnification is only 0.2X, which is very unfavorable when shooting naked lenses at close range. Therefore, many users want to have a telephoto that is light, easy to store and has better image quality.

Unfortunately, the reality is far from cruel. Two years after the launch of Sony FE200-600mmF5.6-6.3GOSS, Longteng and Sigma released E-mount telephoto lenses, Longteng150-500 mm F/5-6.7 diiiivcvxd and Sigma 150-600 mm F5-6.3 DGDNOS |. Sony A7 series users are faced with lenses with such similar characteristics. How to choose the products that suit them? The following are the main specifications of the three lenses.

light

Longteng Sony stone horse

If the user pursues portability and wants the lens to be light in weight and easy to store, Longteng150-500 MF/5-6.7 diiiivcvxd must be the first choice. Its tripod ring can be completely disassembled, the minimum weight can be reduced to 1725g, which is close to the lens weight of 7202.8 and 140, and the hand-held pressure will be obviously reduced. The most important thing is that the lens adopts external zoom design and short focal length, and the length in storage state is only 209.6mm, which is almost the same as that of Sony Fe100-400 MMF 4.5-5.6 GMOSS. It can be put into a common photographic backpack together with the camera body, or a single lens can be carried on one shoulder.

Longteng 150-500mMF/5-6.7

However, the optical aperture gap and the inability to install a magnifying glass determine that these are the only comparative advantages of Longteng150-500mf/5-6.7 diiiivcvxd.

image quality

Sony smart longteng

The SLR lens uses a large aperture of150-600 mm F5-6.3 dgoshsm | Sport, which is the largest telephoto lens in its class and the highest theoretical angle resolution, and the strongest resolution when shooting long-distance targets. However, in order to realize light weight, the aperture of the new150-600mmF5-6.3dgdnos | Sport is reduced to 95mm, which is the same as that of Sony FE200-600mmF5.6-6.3GOSS, and their theoretical angular resolution is the same. 150-500mf/5-6.7 diiiivcvxd is naturally not as good as the first two lenses because of its shorter focal length, lower aperture and smaller aperture value of 1/3. The battle for the strongest image quality falls between Sony and Sima.

FE200-600mmF5.6-6.3GOSS and 150-600 MMF 5-6.3 DGDNOS | Sports all adopt very complicated structures, especially the former, with as many as 24 pieces in 17 group and 25 pieces in15 group in the latter, but Sima used them.

Close-up magnification

Sigma = Longteng Sony

Lens magnification is a very important parameter for photographers of birds and insects. In this respect, the best maximum magnification is undoubtedly suitable for MA150-600 mm F5-6.3 DGDNOS | sports, but the magnification of 0.34x is achieved at the focal length of 180mm, which is similar to that of Longteng150-500 mm f/5-6.7 diiiivcvxd.

Sigma 150-600 mf5-6.3 gdnos | Sports

Among the three lenses, FE200-600mmF5.6-6.3GOSS is the one with the lowest magnification. However, it can be equipped with a 2-fold magnifying glass SEL20TC to increase the magnification by 0.4 times. However, considering the damage, flexibility and reliability of the magnifying glass to the image quality, it is not as good as the other two products in close range.

expansibility

Sony intelligent longteng

Due to the agreement with Sony, Sigma and Longteng don't provide or support magnifiers, and their expansibility is obviously not as good as that of Sony FE200-600mmF5.6-6.3GOSS, but Sigma150-600 MMF-6.3 DGDNOS | Sports has considered magnifiers in its design, and its L-mount version can be equipped with TC-14/KL.

get along well with

Sony longteng i.

Compatibility issues have to be considered when using the factory lens, which directly affects lens focusing, anti-shake, distortion/dark angle/dispersion correction and many other aspects. As an original lens, Sony FE200-600mmF5.6-6.3GOSS naturally has no compatibility concerns. At the same time, Sony is one of Longteng antiques, and it licensed E mount to Longteng, so its compatibility is naturally better than that of Sigma.

label

To sum up, Sony FE200-600mmF5.6-6.3GOSS has excellent comprehensive performance, not bad image quality, and can be equipped with a magnifying glass, and the price difference is very small, with outstanding cost performance. Coupled with the reliable internal zoom structure, it is very suitable for brainless access; Longteng150-500mf/5-6.7 diiiivcvxd has obvious advantages and disadvantages, and is suitable for users who pursue portability. Sigma150-600mmF5-6.3dgdnos | sports is located in the middle. If you want to shoot birds and like to shoot insects, you need good macro performance, which is the best choice among the three.