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Sony 索尼 Alpha 7R IV 全框无反光镜头相机,带高分辨率 61MP 传感器,高达 10FPS,具有连续 AF/AE 跟踪
Sony Alpha 7R IV Full Frame Mirrorless Interchangeable Lens Camera w/High Resolution 61MP Sensor, up to 10FPS with Continuous AF/AE Tracking

4.8 颗星,最多 5 颗星 285 评论
| 海外自营

Body Only
新版 - a7R IV
12期7.5%费率,每月仅 ¥1,933.36 最高12期,多种分期方式可选 了解更多
分期计划 手续费 总金额
¥7,359.37×3期 ¥496.38 (2.3%) ¥22,078.07
¥3,758.82×6期 ¥971.18 (4.5%) ¥22,552.87
¥1,933.36×12期 ¥1,618.63 (7.5%) ¥23,200.32
海外购商品适用亚马逊美国退货政策。 海外购商品将被退回亚马逊美国仓库。具体操作方法请参考退货退款流程


  • 世界* 61MP 全画幅背光 Exmor R 传感器
  • 15-stop 动态范围,14-bit 未压缩 RAW,ISO 50 至 102,400
  • 高达10fps的连续拍摄,61MP,AE/AF追踪
  • 适用于人类、动物和电影的实时跟踪和实时眼 AF。
  • 5.76 百万点 UXGA OLED Tru-Finder 电子取景器
    • World’s first 61MP full-frame back-illuminated Exmor R sensor
    • 15-stop dynamic range, 14-bit uncompressed RAW, ISO 50 to 102,400
    • Up to 10fps continuous shooting at 61MP with AE/AF tracking
    • Real-time Tracking and Real-time Eye AF for human, animal and movie
    • 5.76 million dot UXGA OLED Tru-Finder electronic viewfinder


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  • 电池 ‏ : ‎ 1 锂离子电池 电池(附带)
  • 商品尺寸 ‏ : ‎ 24.38 x 15.49 x 14.22 cm; 662.24 克
  • 制造商 ‏ : ‎ Sony
  • ASIN ‏ : ‎ B0973H3N8V
  • 型号 / 款式 ‏ : ‎ ILCE7RM4A/B
  • 用户评分:
    4.8 颗星,最多 5 颗星 285 评论


由于图像处理能力和效率方面的进步飞跃,Sony 索尼 Alpha 7R IV 将世界上第一个高分辨率 61MP 背光 Exmor R® CMOS 图像传感器与令人印象深刻的拍摄速度高达 10fps、全 AF/AE 跟踪,以及美丽的 4K HDR 视频、宽15 停止动态范围和高灵敏度以及特定区域的降噪。




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美国亚马逊: 4.2 颗星,最多 5 颗星 69 条评论
Y. Wang
5.0 颗星,最多 5 颗星 The megapixels are worth it!
2021年7月9日 - 已在美国亚马逊上发表
款式: Body Only配置: 基本已确认购买
Y. Wang
5.0 颗星,最多 5 颗星 The megapixels are worth it!
评论于 2021年7月8日 在美国 🇺🇸 发布
I have owned every A7r camera including the original, A7rii, A7riii, and now the A7riv. The A7riv is the first big image quality improvement in years! Is it worth it to upgrade to 60MP? Definitely but be aware that this still a specialized camera and not an action camera.

The camera industry remained stead at the 24MP range for years now. In the past year the Canon R5 and R6 cameras have pushed the envelope and the new megapixel race is back in full swing. Usually high megapixel wars were more about bragging rights and marketing than actual usability. Noise and image quality decreases with higher resolutions due to smaller physical pixels. This remains true with the A7riv's 60MP sensor over the A7riii's 42MP. However the increased resolution minimalizes the perceivable noise increase (You won't see it unless you pixel peep). In addition, the higher resolution helps with sharpness, contrast, and cropping flexibility across the board and you get an overall better camera.

The Good:

Image Quality. As mentioned above 60MP improves sharpness and cropping flexibility. There is some degradation of dynamic range and noisier ISOs. But again, since the resolution is much finer, the small amounts of noise introduced is much less noticeable at these resolutions. When used with uncompressed RAW (see below) you get much better ISO and dynamic range.

Cropping. I cannot emphasize the ability to crop with 60MP. The larger megapixel count gives greater range of flexibility to crop, refocus, and recompose photos in post. Often I change the entire composition of a photo with extreme cropping of my A7riv files. You can change full body portraits into headshots and retain excellent sharpness. Reframe centered subjects to align with rule of thirds or vice versa. The ability recompose shots afterwards is amazing!

Autofocus. The A7riv has a significantly improved AF that covers much more of the sensor than the A7riii. The A7riii just added a few more contrast detection points over the A7rii but the A7riv has PDAF points nearly covering the entire sensor. With my A7riii it was very difficult to eye-AF on subjects on the corners of the sensor. With the A7riv, unless your subject is on the very edge of the sensor, you will have full AF functionality including eye-AF. Furthermore the AF is much snappier and eye-AF finds the eye faster and stays locked on in dimmer conditions and further away than the A7riii.

Battery. The camera still uses the newer Z batteries that comes with the newer generation of Sony cameras. The Z Batteries have doubled life over the older W batteries. Getting such a long runtime with such a high MP camera is pretty great.

IBIS stabilization. Sony was one of the first large companies to use IBIS in full frame cameras. 5.5 stops of stabilization is amazing and still makes handheld slow light photos seem like they were on a tripod. I am still amazed by this feature sometimes. Tests do show that in real world tests the A7riv has slightly better IBIS stabilization than the A7riii.

Ergonomics/usability: Not much has changed over the A7riii. Every year, each new version of the camera is bigger, thicker, and heavier. The joystick feels nicer and the shape is more comfortable. The camera itself is slightly thicker which is better to hold for your hands. There are no glaring issues here.

The bad:

Dynamic Range. Dynamic range is on par with other cameras of this generation. However shadow recovery is slightly worse than the A7riii. This is mainly due to the use of Compressed RAW setting with continuous shooting. When using Compressed Raw and continuous/burst mode, the camera shoots at 12-bit instead of 14 bit. If you shoot in single shots with uncompressed RAW you can get much better dynamic range and shadow recovery. 60Mp files are huge and not easy to process and this camera is NOT an action camera. But the fact that you can get 10fps with a 60mp camera even at 12-bit is still pretty amazing.

Processing speed: With 60MP, writing to SD cards is even slower than before. As previously mentioned you can improve image quality by using uncompressed raw which DOUBLES file sizes from around 59mb to around 117mb. This makes writing to a regular 90/95mb/s USH-I card EVEN SLOWER. You can't review images after each shot without waiting for the writing to clear. With continuous multiple shots it takes EVEN SLOWER! You can help alleviate this problem with faster UHS-II 300mb/s cards but at the time of this review these cards are RIDICULOUSLY EXPENSIVE. Sony really needs to implement compressed lossless RAW files as 60MP is nearing the limit and resolution will continue to creep up.

Speed. This is not an action or sports camera, but it CAN handle some action at 10fps. As mentioned previously, shooting in burst and continuous does reduce quality a bit. If you are a wedding photographer or lifestyle/street photographer this will be fine for your needs. However if you are shooting sports, dance, motion, a dedicated action sports camera that can handle the speed without quality loss like the A1 or A9 would be better suited for you.

Pixel shift. Pixel shift is a great feature on paper. The sensor shifts very slightly letting you get significantly better quality images by using quadrupling the color information in each pixel. However realistically you can't use it without some smearing or ghosting. Unless you are using it for perfectly static scenes you will get some sort of smearing. Wind moving tree leaves or grass, moving cars in cityscapes, any movement will throw off the sensor. I have never meaningfully used this feature. Additionally you need Sony's Edge software to compile the images which just adds to the processing steps.

This is a great camera and a phenomenal upgrade. It does however have some limitations. For years the A7r series was the flagship camera of Sony's line. However we must remember this is really geared for landscapes and studio work were lighting conditions are controlled and you don't need to shoot fast action. Sony has diversified with the A9 and A1 line with the A9 being sports and the A1 being the dedicated all-around flagship camera with little compromises. For your everyday photographer who is not shooting ballet dancers or basketball games regularly, this should be perfectly suitable for their needs. Even professional wedding and street photographers will find little to complain about. Only the most demanding action photographers pushing the limits will want more.
72 个人发现此评论有用
5.0 颗星,最多 5 颗星 A Great Camera So Far
2022年8月19日 - 已在美国亚马逊上发表
款式: Body Only配置: 新版 - a7R IV已确认购买
1 个人发现此评论有用
5.0 颗星,最多 5 颗星 Great for those that need it! But do you?
2019年10月28日 - 已在美国亚马逊上发表
款式: Body Only配置: 基本已确认购买
5.0 颗星,最多 5 颗星 Great for those that need it! But do you?
评论于 2019年10月28日 在美国 🇺🇸 发布
The A7R4 isn't for everyone, but if your niche meets the needs of high resolution and mirrorless performance, it is fantastic.

Combined with the Sony 90mm Macro I can attain tac sharp focus handheld on insect eyes. I can shoot tiny jumping spiders, assassin bugs, flowers, lichen, moss, and all kinds of incredibly tiny subjects. APSC mode (or crop in Lightroom) makes this both the highest resolution Full Frame as well as a phenomenal Crop Sensor camera. Win win!

Combined with Sony 24-70 F2.8 GM, I can shoot all of my day-to-day non-macro photos. Things like street photography, infant photography, family photos, and more.

If dual memory card slots is critical to you, then this is a feature you need and will love. Most mirrorless cameras (ie Nikon) are a dang joke! So sad! Seriously, if you don't have dual cards in the camera then it is just a toy, not a tool. Professionals can't risk loosing photos.

File size is huge, managing space might be hard, a fast computer will help in processing and managing your files. Google drive doesn't support Sony RAW files, so I also save jpg versions for quick viewing. More space gone... more upload time required.

The app is actually really great for a newer app. Connecting works all the time, but only if you do things in a particular order. They should fix that... I can control my exposure triangle from the app, shoot, and review a low resolution sample. Great for a remote shutter. Doesnt let me touch to focus... would love remote focus with focus magnifier. Would die for the same with a focus stacking mode from the app. I might be a dreamer though, probably won't ever see this.

Ok, and the back screen. Seriously Sony?! Still poor resolution, but the biggest sin is that the screen still doesn't flip around like canon cameras! Holy smokes, catch a clue Sony! Vloggers are a huge deal, stop ignoring them! At least the app can give you a remote live view experience on your cell phone. So that seems to be a workaround for me. But I can see that not working well for people that blog a lot.

Most people could do well with an A7R3 instead. Could you benefit from the savings? Could you use that for more accessories or glass? Would that help you more than the resolution jump? Maybe!

For macro, the super high resolution is really a big help. Know your needs!

Hope this helps you decide on your next camera! I love my Sony A7R4!
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84 个人发现此评论有用
Thomas Anderson
5.0 颗星,最多 5 颗星 Perfect, Stunning, Superb
2021年3月17日 - 已在美国亚马逊上发表
款式: Body Only配置: 基本已确认购买
Thomas Anderson
5.0 颗星,最多 5 颗星 Perfect, Stunning, Superb
评论于 2021年3月16日 在美国 🇺🇸 发布
I paired it with the 12-24 mm GM 2.8 lens as I'm primarily interested in landscape photography. This camera is a beast and the 12-24 mm GM 2.8 lens is another beast in itself. I'm thoroughly amazed. You could go to any interesting areas and get stunning results. The level of resolution is amazing. You can come home and can relive the whole hiking or adventure experience. Its impressive to print them in poster sizes. With this resolution, you can zoom into the pictures and be amazed at the level of details. You can zoom, crop away and still get a great picture. Its also very easy to adjust the menus, transfer it to computer. The combination is a lot of money however.
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7 个人发现此评论有用