E-bayonet telephoto fixed focus new height Sony G main lens SEL600F40GM evaluation

IT 168 evaluation with the release of Sony g main lens SEL 600F40CM, the number of Sony Quan Huafu e-mount lenses has reached 33, and the number of e-mount lenses has reached 5 1 lens. So far, the coverage of Sony's lens group has been very extensive, and this new lens SEL 600F40CM also has many functional highlights worth mentioning, the most notable of which is as far as 10. So today we will mainly introduce this Sony Quan Huafu super telephoto fixed focus G main lens SEL600F40GM.

Preliminary experience feeling

The first time I got the lens, I couldn't wait to feel the weight and grip of the lens. This time, Sony SEL 600F40CM is still a lightweight design. Compared with the previous SEL400F28GM 2895g, Sony SEL 600F40CM has greatly improved its focal length and only increased its weight by 3040g. Actually, it's about 400 sets. This time, the weight is enough for short-term hand-held shooting, and the center of gravity is still the same as 400 sets. The reduction of the number of three fluorite lenses and the lens at the front end of the lens make the center of gravity move back a lot. Of course, if you want to shoot outdoors for a long time, the experience with a monopod will be much better.

In terms of the optical structure of the lens, Sony SEL600F40GM adopts the design of 18 group of 24 lenses, including an XA super aspherical lens, which can effectively suppress the common aberrations in telephoto lenses, and cooperate with three fluorite lenses to minimize chromatic aberration and dispersion. This unique optical design makes it have excellent image quality and detail performance, which can be verified by later experience proofs. Not only the center of the picture, but also the edge can have very good clarity and resolution.

In terms of aperture design, Sony SEL600F40GM adopts a circular aperture with as many as 1 1 blades, which makes the scattered scenes in Jiao Wai more artistic and feminine. At the same time, with Sony's brand-new XA super aspherical lens, it can show a blur effect when shooting some subjects with large aperture, and the effect of shooting backlight photos is still remarkable.

In addition, the built-in optical image stabilization of Sony SEL600F40GM is also very suitable for shooting. Sony A9 camera's 5-axis anti-shake ability can really stabilize the picture and not shake easily, and its ability to capture some fleeting details is also greatly improved.

In the actual shooting process, I actually feel that the evaluation given after focusing is quiet, fast and efficient. The reason why we have such focusing ability is that we are equipped with dual XD linear motors, which can move the focusing lens group quickly, and realize fast, accurate and reliable auto-focusing and auto-tracking performance, which is very helpful for capturing birds and wild animals including sports photography at high speed. The optimized focusing algorithm minimizes the lag and vibration, optimizes the noise control, and can shoot smoothly in the shooting environment with strict sound control requirements, which is very suitable for shooting birds and wild animals that are easily frightened in the natural environment.

Product appearance

Overview of Sony G main lens SEL600F40GM and accessories

After all, it's an expensive lens and the packaging is exquisite. The whole lens is tightly protected by a suitcase with a lock, which is filled with hard foam to prevent vibration and buffer, and everything in the suitcase-lens, hood, shoulder strap, leather lens cover, etc.-is readily available.

Due to the size of the lens aperture, it is equipped with a leather protective lens cover.

Sony G main lens SEL600F40GM continues the consistent design of Sony telephoto lens, with black and white color matching. The whole lens barrel is particularly conspicuous with ivory color matching, while the focus ring is black.

Adjust and install the cylindrical cover through the knob.

The orange logo of Master G lens is printed on the front of the lens, which indicates that this lens has excellent optical performance and leading design concept.

The model nameplate of Sony G main lens SEL600F40GM is marked with the product information of the lens and Sony logo, which is also the exclusive number of each lens.

The middle part of the lens is sequentially provided with four focus locking buttons; Function ring and focus ring. Up to four focus lock buttons, no matter what shooting method, it can be easily operated.

The function buttons of Sony G main lens SEL600F40GM are located at the back of the lens. From top to bottom, they are focus mode switch, full-time direct manual focus switch, focus range limit, function change selection switch, setting button, optical anti-shake switch, optical anti-shake mode switch and buzzer switch. There are three kinds of lens anti-shake modes: mode 1: normal shooting (large-scale, still life), mode 2: shaking shooting, and mode 3: dynamic random motion.

Sony G main lens SEL600F40GM has designed a 40.5 mm rear plug-in filter, which can use VF-DCPL 1 plug-in circular polarizer, and has a good effect on filtering interference reflection.

At the lens bayonet position, it is fixed with seven screws, which further strengthens the firmness. The 10-contact E-bayonet ensures the stable and fast data transmission between the camera and the lens, and provides data support for fast and accurate autofocus system focusing.

Sony G main lens SEL600F40GM lens adopts dust-proof and moisture-proof design, the lens diameter is 164 mm, and the front lens group is coated with fluoride to prevent fingerprints and dust from appearing on the lens surface and protect the front of the lens from being scratched. In addition, the front lens group of this lens is plated with nano-AR, which can effectively prevent ghosts and glare.

The tripod interface has two small sizes of three-hole quick-loading board interface to choose from. In terms of humanized design, considering that when going out for hand-held shooting, black leather is used above the interface most of the time to increase the grip and relieve the pressure on the hands, it is still very intimate.

performance test

For this Sony G master SEL600F40GM lens, everyone is more concerned about its image quality and resolution, so how does it perform in actual shooting?

Sharpness test

Take the original picture

In order to maintain objectivity in the test, we selected the same place and turned off the noise reduction function in the fuselage, and compared the image quality of the center and edge of the screenshot from F4 maximum aperture to F22. From the above proofs, we can see that the sharpness of the center and edge is appropriate, and even under the maximum aperture of F4, the image quality of the center and edge has reached a very high resolution. Far beyond the image quality performance of the same type of lens.

Dark angle test

A dark corner is actually a loss of light. The light loss caused by incident light generally appears in four corners of the picture. According to the test, the Sony Gmaster SEL 600F 40CM lens only has a dark angle at the maximum aperture F4, but it can't be perceived when the aperture value reaches F5.6, and its ability to control the dark angle is relatively good.

Test sample of background blur effect

The background blur ability of Sony Gmaster SEL 600F 40CM lens is outstanding. In this way, the purpose of avoiding the influence of clutter background on highlighting the main body is achieved. Under the recent focal length of 4.5m, the animal shooting effect under the maximum aperture of F4.0 is extremely outstanding, and there will be a wonderful sense of distance between the subject and the background. Moreover, the Jiao Wai is very soft, and the blurred effect of the background can better contrast the hazy and soft feeling of the whole picture.

Sample appreciation

Finally, let's take a look at how this Sony G master SEL600F40GM lens will perform in wildlife photography. Let's feel it through the following samples.

Most of the proofs were taken with Sony G master SEL600F40GM lens and Sony A9 camera, and the quality was guaranteed. The overall experience of shooting this wild animal at a certain distance with Sony G master SEL600F40GM lens is quite good. On the one hand, its lightweight and improved design will not be too tired for shooting transitions. At the same time, with the dual cooperation of A9' s 20 frames per second and the lens' dual XD linear focusing motor, the focusing feeling in the real shooting process is very fast, stable and accurate, so that you won't miss any wonderful moment you want to capture, and the color reproduction degree is also very high.

Evaluation summary

Sony G master SEL600F40GM lens is impeccable in both lightweight design and high pixel resolution. Its 600mm focal length hand-held shooting ability and fast and stable high-precision focusing make it more flexible in the adaptability of shooting subjects, and its launch also makes it possible for Sony micro-single products to formally set foot in a wider range of professional photography subjects. I also hope that when the Tokyo Olympic Games come next year, I can see more orange legions join in and expand the camp of E-slot.