Extreme quality Sony Quan Huafu micro-single α7R depth evaluation

IT 168 Evaluation Some time ago, we tested the Sony Quan Huafu micro-single α7. Today, the α7R released by Sony also came to the IT 168 editorial department. α7R and α7 have the same appearance. The main difference is that the Quan Huafu sensor with 36.3 million pixels is used, and the olpf is cancelled, thus further improving the resolution. The new Quan Huafu E-mount lens achieves the high quality of Sony α. So what kind of surprise can this α7R with the highest image quality bring to everyone? Let's take a look at the evaluation.

▲ Extreme picture quality Sony Quan Huafu micro single α7r evaluation

"Appearance:

"manipulation:

"Resolution:

"Sensitivity:

"color:

"Lens performance:

"

"Wireless Network & NFC:

"The key:

"Real samples:

"advantages:

1, 36.4 million pixels Quan Huafu micro-single, compact size, extreme picture quality.

2. Equipped with WiFi and NFC functions, one-click remote control sharing.

3. The LCD screen can be flipped to facilitate multi-angle shooting.

4. Support mobile power supply

Charging, easy to charge when going out.

5, phase contrast hybrid focusing system, fast focusing speed.

"Disadvantages:

1, continuous shooting only has 4 cards per second.

2. Battery

It's really not enough

"Purchase instructions:

Sony α7R is a Quan Huafu miniature camera with the highest image quality. It cancels the low-pass filter and makes the picture more pure, as if it were tailored for landscape photographers. Of course, this is a good camera worth buying, but if your pursuit of image quality is not so harsh, you should actually buy α7, after all, its price is 5000 yuan cheaper than α7R. At present, the price of Sony α7r monomer is 12899 yuan. It is recommended to match the lens 35 2.8 or 55 1.8.

"Sony α7R stand-alone price

" 12899

"Yuan Tao:

"Click to view the details.

"

"Sony α7 stand-alone price is 7800.

Yuan:

"Click to view the details.

"A picture of Sony α7R.

"It's really portable, bigger than NEX and smaller than SLR.

When I first got the α7R, I felt it was the body of Sony RX 1 and the top of Olympus E-M5. The matching sleeve is 35mm F2.8

camera lens

The whole is very harmonious, and people can't help but sigh that this lens is really small. General appearance, worse than Fuji, better than NEX, depending on personal aesthetics.

▲ All metal material

▲ 36.4 megapixel Quan Huafu sensor.

▲ Light weight

▲ top

▲ bottom

▲ Back button

▲ video performance

▲ card slot

▲ Side interface

▲ Flip the screen

▲ pulsator

Appearance summary: the overall appearance is relatively simple and compact, which can meet the requirements of ultra-portability. The matching nose adds a lot of color to the machine.

"Nine custom button controls are comparable to SLR.

The biggest feature of Sony α7R is that it has 9 custom keys, which can be turned into its own camera with simple settings.

▲9 custom keys

The key distribution of α7R is basically concentrated on the top of the machine and the right side of the back of the machine, which is more convenient for one-handed control and shooting. We can set the custom key to a parameter that you are familiar with through the custom key setting in the menu.

▲XGA organic light emitting diode Tru-Finder electronic viewfinder

α7R adopts XGA organic light emitting diode Tru-Finder electronic viewfinder, which is the same as α99. Provides a visual field of about 100%, with real-time display shooting effect. You can directly check the exposure effect and set the white balance parameters without leaving the viewfinder. Enlarge the focus area to achieve precise focus; In low light environment, it can also present a clear and bright field of vision.

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Foldable LCD screen

Besides, I have to say this foldable LCD screen, Quan Huafu digital camera.

There are not many flip screens, but a flip LCD screen can provide photographers with broader ideas and more inspiration.

▲APS-C format shooting

It should be noted that Sony α7R also supports non-Quan Huafu lens with E port.

You only need to set the shooting option of APS-C format to automatic in the menu, and the camera can automatically identify what you are using.

camera lens

Is it Quan Huafu lens or APS-C frame lens? If it is the latter, the camera will automatically cut into APS-C frames for shooting. Very practical, right? There are many fans who don't have full E-lens, so don't worry.

Control Summary: With 9 custom keys and a dial wheel that can easily adjust parameters, the control sense is first-class, no less than that of a SLR camera.

"The data is surprisingly high! α7R resolution is really good.

For the Sony α7R with 36.4 million pixels, everyone will expect it to have excellent resolution and detail performance, and removing the low-pass filter will further improve the image quality details. Therefore, we tested the resolution and clarity of α7R. In the test, α7r is equipped with 35mm F2.8, and the target with ISO 12233 resolution (4000 lines) is photographed. The following are the test results:

▲ Central resolution

▲ Edge resolution

According to the test results, the resolution of α7R has exceeded 4,000 lines, so it seems that the Quan Huafu sensor with 36.4 million pixels is really good. The best resolution appears on the F8 aperture, and the best resolution value is 424 1.

Of course, it is really difficult to understand running points. We also tested the resolution of this machine in the standard environment of the evaluation room. Let's have a look.

▲ Standard environment for real shooting test

▲ partial 100% screenshot

The first picture is the standard environment of IT 168 laboratory, and the places circled in red are the places we intercepted. As can be seen from the screenshot of 100%, the resolution of α7R is really good. The face and clothes details of the American head are clearly photographed, and the metal texture of the coin is also good, with silk thread and

earphone

The details are very good. Even for landscape photographers who are extremely strict with image quality, α7R can fully meet their needs. As for the moire caused by removing the low-pass filter, I personally think there is no need to worry too much, because I have been holding it for a week and have never encountered moire.

Summary: Quan Huafu COMS with 36.4 million pixels to low pass really deserves its reputation, and the fine picture quality brought by ultra-high pixels is staggering.

"The new BIONZ X processor ISO 3200 is now available.

The new high-speed BIONZ X image processor can quickly process a large amount of image information transmitted from Quan Huafu Exmor CMOS image sensor, faithfully reproduce image details, and provide high-quality fine images. Its regional noise reduction technology can adjust the degree of noise reduction and sharpening according to the different positions of the image. Clear and clean pictures can also be obtained in low light environment.

▲ Sensitivity test interception area

▲ Sony α7R sensitivity 100% slice comparison

We choose to test the noise in the standard environment of the laboratory. From the screenshot of 100% slice, it can be seen that when using ISO 3200, some noise appears in the picture, but it is not obvious, and the picture definition is still ok. ISO 3200 of Sony α7R is available.

"Accurate color reproduction is very sensitive to red performance.

▲ White balance test

The exposure error of Sony α7R is -0. 18f-stops, which is quite good, indicating that the exposure is accurate and slightly under-exposed. The white balance of α7R is accurate and can restore the real scene.

▲ Color cast test

Through the color test, it can be seen that the color reproduction of α7R is still very accurate. The square in the above picture represents the color itself, and the circle represents the color taken by the camera. The color saturation of α7R is 1 15. 1%, indicating that the color saturation is relatively high. Among them, it is sensitive to red and has a large offset.

"lens performance test

Sony α7r's kit lens is Sonnar T * Fe 35mm F2.8za This lens is compact and inherits Carl Zeiss' excellent contrast and resolution imaging quality. It has a bright constant F2.8 maximum aperture design and adopts three aspheric lenses. Dust-proof and drip-proof design and exquisite workmanship are a perfect match with the α7r fuselage. Let's take a look at the performance of this lens.

"There is basically no distortion.

▲ lens distortion test

Sonnar T* FE 35mm F2.8 ZA

The distortion value is 0. 14%, which can't be distinguished by naked eyes and can be ignored.

"The dark corner of the lens obviously disappeared in F8.

Dark corner is an unavoidable problem in all shots, but sometimes you can get a surprise effect by making good use of it.

▲

Lens dark angle test (lens closing compensation)

▲

Lens dark angle test (open lens compensation)

The above two dynamic pictures, one is the dark angle test with lens compensation off and the other is the dark angle test with lens compensation on. The dark corner of this lens is obvious. When lens compensation is turned off, the dark corner in F8 disappears. After the lens compensation is turned on, the situation of dark angle has improved and basically disappeared in F4.

"Anti-glare ability is good.

▲ Anti-glare test

▲ Anti-glare test

When shooting under the backlight, you can see that the glare is not obvious, and this lens controls the glare very well.

"The background blur ability is very good.

▲ Good background blurring ability

▲ Good background blurring ability

Shooting with the maximum aperture F2.8, the background blur ability is very good, and the Jiao Wai is also very soft.

Summary:

Sonnar T* FE 35mm F2.8 ZA is a hanging head with very good quality, which is very compatible with α7R. It is highly recommended to buy.

"The focusing performance is average.

Sony α7R adopts improved contrast detection autofocus and has 25 contrast focus points. Since α7R does not focus with the same phase contrast as α7, there must be some doubts about the focusing speed. So what is the focusing speed of α7R? Let's take a look at the video.

In the video focusing test, we simulated the dark environment and bright environment respectively. The test results show that Sony α7R does have a slow focusing speed in dark environment, but it will not lose focus. Under strong light, Sony α7R has a fast focusing speed. In short, don't worry too much about the focusing speed.

However, the continuous shooting speed of Sony α7R is only 4 frames per second, which is also a pity brought by high pixels.

"Peak focusing is a good helper for manual focusing.

When using the manual focus point, the peak focus of Sony α7R comes in handy.

▲ Four peak levels: high, medium, low and off.

▲ Red, yellow and white peak colors

The peak focusing of α7R has four peak levels: high, medium, low and off. The higher the peak level, the more obvious the particles in the picture when focusing. In addition, there are three kinds of focusing colors, no matter what color the subject is, you can choose different color peaks to see more clearly.

"Wi-Fi and NFC are simple and practical.

Sony α7R can easily connect with smart mobile devices through WiFi or NFC, and can control the camera outside with mobile devices within the effective signal range of WiFi. This is the same as the WiFi function of α7. Let's give you a complete demonstration of how to use Sony α7R and smart phones.

Connect, this time using intelligence.

mobile phone

For Sony Z 1.

▲PlayMemories mobile application

First, you need to download an application called PlayMemories Mobile on your mobile phone. There are currently two versions available for download: Android and iOS. If your mobile phone has NFC function, it can be shared or remotely controlled with a touch. If you are an iOS party like Muir, you can only connect to WiFi once and for all. Let's take a look at the process of transmitting photos and remote shooting.

"Send photos:

▲ Send to smartphone

In the playback interface, we enter the menu to find "Send to Smart Phone", and then we can choose to send a single picture or multiple pictures.

▲ Select photos

After selecting multiple pictures, start selecting the pictures to send.

▲ Send to smartphone

After this step, the task of the camera is basically completed, and the setting of the mobile phone is started.

▲ Mobile phone connected to camera

Find the hotspot of α7R in the mobile phone wireless network, and connect the camera with the mobile phone according to the password entered in the camera.

▲ Photo transmission completed

Then open the just downloaded PlayMemories Mobile, and the photos can be sent to the mobile phone.

"Mobile phone remote control:

If you want your mobile phone to remotely control the camera, you must first select the one-button (NFC) function in the menu.

▲ A touch of NFC

▲ Embedded intelligent remote controller

Then select the embedded intelligent remote control inside.

▲Wi-Fi standby

Then the camera enters the standby state, waiting for the connection of the mobile phone.

▲ Address and password of camera hotspot

▲ The mobile phone touches the camera.

Because the password has been entered before, you can now directly touch the camera through the NFC of the mobile phone to connect. If your phone doesn't have NFC function, you may need to enter another password.

▲ Now the mobile phone can shoot by remote control camera.

Now the mobile phone can remotely control the camera shooting, and only the exposure compensation can be adjusted on the mobile phone, and other parameters cannot be adjusted.

Summary: WiFi and NFC really provide great convenience for shooting and sharing, and if you have a mobile phone that supports NFC, the whole process is quite simple. But the problem is that there are not many parameters that can be adjusted in the current mobile phone software. I hope Sony can solve this problem through software upgrade in the future.

"Real samples.

▲ Real shot sample

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