& 产品点评对比
索尼ILCE-9和索尼A7RII和索尼RX10 II点评对比
参数仅为参考，产品以当地实际销售实物为准。Sony a7S II vs. a7R II Test – Which One Is Right for You?
| 13th November 2015
is shipping and many filmmakers rejoice as it is one of the best low cost video cameras out there right now. Last week we took a really close look at the differences between the
and the old . But how does this new camera compare to the
that was introduced just a few months ago? Here is the ultimate
vs. a7R II Test.
Just like in our
we went to the test lab and compared all the camera’s capabilities in detail. In this review I’m going to give you all the unbiased results as quickly and to the point as possible and conclude with our recommendation.
On the Outside
Unlike the original a7S, the two cameras on the test bench share the same body design. The major difference here is the sensor itself. Both have a full-frame sensor, but the a7S II uses Sony’s 12.2MP Exmor CMOS Sensor while the a7R II houses the 42MP Exmor R BSI CMOS Sensor.
Obviously this makes the
the better choice for photographers who need lots of megapixels. But let’s look at the video test results now, shall we?
dynamic range tested with a XYLA-21 transmissive chart.
Dynamic Range
Dynamic range is important for us filmmakers, it gives us the ability to capture high contrast scenes without over or underexposure, highlights and shadows are saved resulting in an organic, filmic look and in theory gives us more leeway in post production.
In theory:
The dynamic range on was identical in Slog2. The a7R II could surprise us though as it has a different sensor.
In reality:
At 4K resolution in Slog2 gamma mode the
(ISO 800) had half a stop more dynamic range than the
(ISO 1600). This is interesting. However the
now also features Slog3 gamma which wins back that half stop. We determined a maximum usable dynamic of slightly above 12 stops on both cameras.
We use a a
transmissive chart and
evaluation software with a crisp
Dynamic Range Conclusion:
to Slog3Cine (PP8 under Picture Profile Settings) in order to match the a7R II dynamic range. However Slog3 is not an ideal gamma mode as the camera is limited to 8-bit color, resulting in banding issues, so Slog2 (PP7) is the preferred gamma setting. The a7R II wins this first point, but not by much.
Rolling Shutter
The so called “rolling shutter” is a phenomenon that skews a camera image when fast moving objects are recorded or during fast pans and handheld camera movement.
In theory:
Users have reported severe rolling shutter on the a7R II, but then again the a7S II doesn’t hold up too well also. Let’s see how they compare.
In reality:
had the same rolling shutter performance as the original a7S. Using the best image quality mode on the a7R II (4K super35mm crop mode) we can indeed see that the rolling shutter effect is about 12% more severe on the .
However in 4K full-frame mode, which is slightly softer, the a7R II has about 50% better rolling shutter performance.
Rolling Shutter Conclusion:
Both cameras have a strong rolling shutter effect in their best quality modes, just like most other cameras that use a large CMOS sensor. The a7S II performs slightly better here. To improve rolling shutter you can use full-frame mode on the .
Resolution / Quality
The resolution comparison between the
vs. a7R II is quite interesting. Both cameras can record a beautiful 4K image internally with a variety of different crop and HD modes. Let’s see how this one turns out.
In theory:
The cameras share a lot of similar specs in video mode, like the 100Mbps XAVC-S codec, 4K (UHD) internal recording, but the recording and crop modes differ as follows:
4K Full Frame: up to 30 fps
HD 1.6 crop: up to 60fps
HD 2.2 crop: up to 120fps
4K Full Frame & 1.6 crop: up to 30 fps
HD Full Frame & 1.6 crop: up to 60 fps
720p: up to 120fps
In reality:
Left: a7R II (crop) 4K | Right: a7S II (FF) 4K
On the left you can see a comparison (100% crop images) between the
vs. a7R II in their best 4K modes. Overall the image looks really really similar. But I can see two things:
1. There is some slight sharpening happening in-camera on the . If I add slight sharepning in post to the a7S II image it looks pretty identical.
Left: a7R II (crop) 4K | Right: a7S II (FF) 4K
2. The a7R II seems to resolve a tiny bit more detail, but it is not affecting most regions of the image as they get washed out by some internal processing. This is only apparent in the
chart and the actual difference is minimal.
Left: a7R II (FF) 4K | Right: a7S II (FF) 4K
When we switch the
to full frame mode, the image gets a little bit worse, but is still beautiful. It resolves a bit less detail and there is some more aliasing / moiré introduced than on the crop mode. Still very usable.
the a7S II’s HD modes pretty much match the quality of the original a7S. What about the a7R II?
In crop mode the a7R II is softer with some aliasing and not really recommendable.
In full frame mode however the
gives us acceptable results that are comparable to the quality of the original a7S and are very similar to the image of the .
We took the following shot comparing the a7R II crop mode to the original a7S in crop mode:
(crop mode HD) | Right:
(crop mode)
As we’re currently in Japan for InterBEE (tradeshow next week) the large Japanese symbols reveal how strong the aliasing in HD mode really is.
Resolution / Quality Concsluion:
The images on both cameras look remarkably similar in terms of quality and resolution. Especially a7R II crop mode vs. a7S II full frame mode are hard to differentiate. The a7R II in full frame is slightly worse, but still very usable. In HD only the full-frame mode is usable on the a7R II.
Here’s an interesting part. Can the a7R II match the lowlight capabilities of the a7S II? The short answer is: No.
In theory:
The a7R II has more pixels on its sensor than the a7S II, hence the a7S II pixels can be larger and capture more light resulting in better lowlight performance.
Let’s see the results:
I compared ISO speeds of both cameras up to ISO 25,600.
Surprisingly the a7R II doesn’t hold up so bad in lowlight at all. It can almost match the a7S II detail in low ISO modes. What I can always see is the a7S II having better noise performance. The image is cleaner. Anyway, with a little bit of noise the a7R II looks ok up until ISO 12,800 and does resolve details in the shadow areas.
When we switch to full frame mode on the
though, the results are quite unusable. Even at very low ISO’s it is not nice. ISO 6400 is already quite noisy.
Lowlight difference between
(bottom) at ISO 25,600. Shot brightness was matched.
Lowlight Conclusion:
In lowlight and noise the
is clearly the winner with an edge of about 2 stops. However the
in crop mode is a pretty good performer. It can retain good shadow detail up until ISO 25,600, but there is clearly more noise than on the a7S II. If you want the best and cleanest lowlight camera go for the a7S II.
Which One Is Right for You?
Each of the two cameras has some strengths and weaknesses. Let’s summarise this now:
has the following advantages:
It can produce 42MP still images, a resolution almost 4x higher than the a7S II.
The option of a great crop mode in 4K besides the full frame (FF usable if you have sufficient light).
Good lowlight in crop mode.
Note: Many readers commented on the overheating issues they experienced with this camera. Apparently some units are shutting down during long takes in warm environments. Keep that in mind when you make your buying decision.
Price: $3,198 ()
has the following advantages:
Slog3 Gamma Mode (not always recommended) & gamma assist feature.
Slightly better quality full frame mode in 4K.
Slightly better rolling shutter performance.
Better lowlight, cleaner image.
120fps slow motion mode in Full HD.
According to user reports less prone to overheating on long recordings.
$200 more affordable.
Price: $2,998 ()
Conclusion
There’s really not a big difference between the two cameras, both on the outside as well as on the inside. The video colors are very balanced on both cameras and they produce a good internal 4K video. There’s no way you could tell the images apart without deep analysis and even in lowlight the cameras are not so far apart.
If you would like to use your camera for high resolution photography the
is clearly your preferred choice. It is also more versatile as it offers crop mode which can be used with APS-C lenses or a
to get an extra stop of light out of full frame EF lenses.
On the other hand the
could be your choice if you’re only doing video and lowlight and a clean image is important to you. You’re restricted to full frame lenses for best quality, but you get Slog3 (if you need that) and somewhat usable 120fps slow motion.
Which is your camera of choice? Let us know your arguments in the comment section.
I hope this comparison answered all your questions. If it helped why not get your gear through the
to our sponsor. Thank you and good light for your shoots.
&In stock for immediate dispatch&
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Sebastian W?ber is a director and DP, studied at Filmacademy Vienna and is passionate about harnessing the potential of filmmaking tech to create powerful cinematic work with limited resources. He is co-owner of cinema5D.
Author of this post: Sebastian W?ber is a director and DP, studied at Filmacademy Vienna and is passionate about harnessing the potential of filmmaking tech to create powerful cinematic work with limited resources. He is co-owner of cinema5D.
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We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.& 产品参数对比
索尼ILCE-7R和索尼A7 II和索尼A7RII有什么区别
参数仅为参考，产品以当地实际销售实物为准。
SONY（索尼）
索尼ILCE-7R(单机)
SONY（索尼）
索尼A7 II(单机)
SONY（索尼）
索尼A7RII(单机)
请选择品牌
请选择型号
删除 →← 删除 →← 删除 →← 删除
2013年10月2014年11月2015年05月
传感器类型
Exmor CMOSExmor CMOS
传感器尺寸
全画幅（35.9*24mm）全画幅（35.8*23.9mm）全画幅（35.9*24mm）
最大像素数
3700万2500万
3640万2430万4240万
影像处理器
BIONZ XBionz X
最高分辨率
图像分辨率
3:2（全画幅）/3:2 （APS-C）
L（36M）：/L（15M）：
M（15M）：/M（9.0M）：
S（9.0M）：/S（3.8M）：
16:9（全画幅）/16:9 （APS-C）
L（30M）：/ L（13M）：
M（13M）：/M（7.6M）：
S（7.6M）：/S（3.2M）：3：2（全画幅）/3：2（APS-C）
L（24M）：/L（10M）：
M（10M）：/M（6.0M）：
S（6.0M）： /S（2.6M）：
16：9（全画幅）/16：9 （APS-C）
L（20M）：/L（8.7M）：
M（8.7M）： /M（5.1M）：
S（5.1M）： /S（2.2M）：3：2
35mm全画幅
L：（42M）
M：（18M）
S：（11M）
L：（18M）
M：（11M）
S：（4.5M）
35mm全画幅
L：（36M）
M：（15M）
S：（8.9M）
L：（15M）
M：（8.9M）
S：（3.8M）
宽：（23M），（12M）
标准：（15M），（8.4M）
传感器描述
35mm全画幅Exmor R CMOS背照式影像传感器
长宽比：3：2
快速智能自动对焦（对比度检测自动对焦系统）
单次AF，连续AF，DMF，手动对焦
支持连续自动对焦锁定，Eye AF，焦点锁定增强型混合自动对焦（相位检测自动对焦+快速智能自动对焦）（单次AF，连续AF，DMF，手动对焦），支持眼控对焦
支持4D对焦自动对焦，单次自动对焦，连续自动对焦，直接手动对焦，手动对焦
广域/区/中间/自由点（L，M，S）广域，区，中间，自由点（L，M，S），锁定AF
117点（相位检测自动对焦）/25点（对比检测自动对焦）35mm全画幅：399
APS-C：357（相位检测）/25（对比检测）
对焦辅助方式
对焦辅助灯
内置LED，约0.3m-约3.0m对焦辅助灯
约0.3m-约3.0m对焦辅助灯
索尼E-mount镜头
显示屏类型
显示屏尺寸
显示屏像素
92万像素液晶屏123万像素液晶屏128万像素液晶屏
液晶屏特性
亮度控制：手动（±2.0级）/晴朗天气
液晶屏视野率：约100%
可调角度：向上约90度，向下约45度
液晶屏显示：图形显示，显示全部信息，无显示信息、数字水平量规、柱状图
峰值检测：是（峰值水平：高/中/低/关，峰值色彩：红/黄/白）
放大倍率：约7.2倍/约14.4倍（35mm全画幅）/约4.7倍/约9.4倍（APS-C）可向上107度翻转，向下41度翻转
液晶屏视野率：约100%
亮度控制：手动（±2.0级）/晴朗天气
液晶屏显示：图形显示，显示全部信息，无显示信息、数字水平量规、柱状图，取景器
放大倍率：约5.9倍/约11.7倍（35mm全画幅）/约3.8倍/约7.7倍（APS-C）
取景器类型
电子（XGA OLED）
取景器描述
取景器总像素：约236万有效像素
视野率：约100%
放大倍率：约0.71倍（使用50mm镜头，无限远对焦，屈光度为-1m-1时）
眼距：距目镜约27mm，屈光度为-1m-1时
屈光度调节：-4 .0至+3.0m-1视野率：约100%
取景器总像素：约236万有效像素
放大倍率：约0.71倍（使用50mm镜头，无限远对焦，屈光度为-1m-1时）
眼距：距目镜约27mm，屈光度为-1m-1时
屈光度调节：-4.0至+3.0m-1XGA OLED 13mm彩色电子取型器
电子控制纵走式焦平面快门电子控制纵走式焦平面快门电子快门，纵向穿越
30-1/8000秒，B门
闪光同步速度：1/160秒30-1/8000秒，视频拍摄时1/4-1/8000秒，B门，
电子前帘快门图片：1/8000到30秒，B门
支持支持支持
闪光灯类型
外接外接外接
外接闪光灯(热靴)
禁止闪光，自动闪光，强制闪光，低速同步，后帘同步闪光，无线遥控（使用外接闪光灯）禁止闪光，自动闪光，强制闪光，低速同步，后帘同步闪光，无线遥控（使用外接闪光灯）禁止闪光，自动闪光，强制闪光，低速同步，后帘同步闪光，无线遥控（使用外接闪光灯）
其它闪光灯性能
闪光同步速度：1/250秒闪光同步速度：1/250秒
电子前帘快门
智能自动，程序自动，光圈优先，快门优先，手动曝光，Movie，扫描全景（2D），场景选择智能自动，程序自动，光圈优先，快门优先，手动曝光，动态影像，扫描全景（2D），场景选择自动曝光，程序自动曝光（P），光圈优先（A），快门优先（S），手动曝光（M）
±5EV（1/3EV步长，1/2EV步长）±5EV（1/3EV步长）±3EV（1/3EV步长）
多重测光，中央重点测光，点测光多重测光，中央重点测光，点测光
自动，预设（日光，阴影，阴天，白炽灯，荧光灯（暖白色），荧光灯（冷白色），荧光灯（日光白色），荧光灯（日光），闪光灯，水中自动，色温/滤光片，自定义（1，2，3），自定义设置）色温：K，带有滤光片（G7-M7 15段，A7-B7 15段）补偿功能自动，预设（日光，阴影，阴天，白炽灯，荧光灯（暖白色），荧光灯（冷白色），荧光灯（日光白色），荧光灯（日光），闪光灯，水中自动，色温/滤光片，自定义（1，2，3），自定义设置）
色温：K，带有滤光片（G7-M7 15段，A7-B7 15段）补偿功能
自动（ISO100-6400，可在此范围内选择ISO最大值和最小值）范围：ISO100-25600（可扩展至ISO 50）静态影像：ISO100-25600（可扩展至ISO 50），自动（ISO100-6400，可在此范围内选择ISO最大值和最小值）
动态影像：ISO200-25600，自动（ISO200-6400，可在此范围内选择ISO最大值和最小值）图片：ISO 100-25600（可扩展至ISO 50-102400拍摄静止图像），自动（ISO 100-6400，可选的下限和上限）
电影：ISO 100-25600等效，自动（ISO 100-6400等效，可选的下限和上限）
肖像，运动，微距，风景，黄昏，夜景肖像，夜景，手持夜景，动作防抖肖像，风景，微距，运动，日落，夜景肖像，夜景，手持夜景，抗运动模糊
光学防抖（五轴防抖）5轴防抖
AVCHD：（50p/平均比特率28Mbps）
AVCHD：（50i/平均比特率24Mbps）
AVCHD：（50i/平均比特率17Mbps）
AVCHD：（25p/平均比特率24Mbps）
AVCHD：（25p/平均比特率17Mbps）
MP4：（25fps/平均比特率12Mbps）
VGA：640×480（25fps/平均比特率3Mbps） XAVC S:MPEG-4 AVC/H.264
AVCHD:MPEG-4 AVC/H.264
MP4:MPEG-4 AVC/H.26
2秒，10秒2秒，10秒，自拍定时（连拍）：10秒3张影像/10秒5张影像2秒，5秒，10秒，关
支持（最高约4张/秒）
连拍模式下：最快约1.5张/秒支持（最高约5张/秒）支持（最高约5张/秒）
玩具相机（标准，冷色，暖色，绿色，品红色），流行色彩，分色（彩色，黑白），复古照片，柔光亮调，局部彩色（红，绿，蓝，黄），强反差单色，柔焦（高，中，低），HDR绘画（高，中，低），丰富色调黑白，微缩景观（自动，上，中水平，中垂直，下，右，左），水彩画，插图（高，中，低）玩具相机（标准，冷色，暖色，绿色，品红色）/流行色彩/分色（彩色，黑白）/复古照片/柔光亮调/局部彩色（红，绿，蓝，黄）/强反差单色/柔焦（高，中，低）/HDR绘画（高，中，低）/丰富色调黑白/微缩景观（自动，上，中水平/中垂直，下，右，左）/水彩画/插图（高，中，低）
支持支持支持
长时间曝光降噪：开/关、快门时间长于1秒时可用
高感光度降噪：强/标准/低 可选
多帧降噪：自动/ISO 100-51200长时间曝光降噪：开/关、快门时间长于1秒时可用
高感光度降噪：标准/低/关 可选
多帧降噪：自动，ISO 100-51200支持
单张拍摄，连拍，速度优先连拍，自拍定时：10秒/2秒，自拍定时（连拍）：10秒3张影像/10秒5张影像，连续阶段曝光，单拍阶段曝光，白平衡阶段曝光，DRO阶段曝光 单张拍摄，连拍，自拍定时:10秒/5秒/2秒，自拍定时（连拍）:10秒3张影像/10秒5张影像，5秒3张影像/5秒5张影像，2秒3张影像/2秒5张影像，连续阶段曝光，单拍阶段曝光，白平衡阶段曝光，DRO阶段曝光
RAW，RAW&JPEG，超精细，精细，标准RAW，RAW&JPEG，超精细，精细，标准超精细/精细/标准
sRGB，AdobeRGB（兼容特丽魅彩色彩技术）sRGB，Adobe RGB
智能手机观看，传送至电脑，电视观看
支持（一触遥控，一触分享）支持支持
支持（可选）
人脸检测，人脸登记
存储卡类型
SD/SDHC/SDXC卡/MS记忆棒SD/SDHC/SDXC卡/MS记忆棒SD/SDHC/SDXC卡/MS卡（记忆棒）/micro SD卡/micro SDHC卡/micro SDXC卡
图片：RAW，RAW&JPEG
视频：AVCHD，MP4视频：XAVC S，AVCHD，MP4图片：JPEG
支持支持（Micro HDMI接口）支持
AV接口AV接口
USB2.0USB2.0USB2.0
锂电池（NP-FW50）锂电池（NP-FW50）锂电池（NP-FW50）
约270张（取景器），约340张（LCD）约270张（取景器），约350张（LCD）静止图像：约290次（取景器），340次（液晶显示屏）（根据CIPA标准）
大屏幕大屏幕大屏幕
126.9×94.4×48.2mm126.9×95.7×59.7mm126.9×95.7×60.3mm
407g（仅机身）约556g（仅机身）582g（仅机身）
镁铝合金属机身
麦克风/扬声器
支持立体声/单声道立体声/单声道
柱状图指示/索引回放：是（亮度，RGB）/是
放大视图(最大放大率)：约23倍（L），15倍（M），11.5倍（S）
创意风格：标准，生动，中性，清澈，深色，轻淡，肖像，风景，黄昏，夜景，红叶，黑白，棕褐色
DRO优化功能：动态范围优化: 关/自动，等级 1 到 5
自动HDR功能：自动HDR：关/自动/等级（1.0 EV至6.0EV，步级：1EV）
自动构图功能：是
智慧式变焦：约1.5倍或约2倍可选
清晰影像缩放：最大约2倍
数码变焦：最大约4倍
自动关机：10秒，20秒，1分钟，5分钟，30分钟后关闭创意风格：标准，生动，中性，清澈，深色，轻淡，肖像，风景，黄昏，夜景，红叶，黑白，棕褐色
自动关机：10秒，1分钟，2分钟，5分钟，30分钟后关闭
Pre-flash TTL
索尼 A7R&x1
电源适配器AC-UB10C/UB10D&x1
可重复充电电池NP-FW50&x1
Micro USB连接线&x1
机身盖（安装在相机上）&x1
插座盖（安装在相机上）&x1
眼罩（安装在相机上）&x1
使用说明书&x1索尼 ILCE-7M2(单机)&x1
FW50锂电池&x1
全国联保，享受三包服务全国联保，享受三包服务全国联保，享受三包服务
400-810-9000400-810-9000400-810-9000
周一至周六：9:00-21:00；周日：9:00-18:00周一至周六：9:00-21:00；周日：9:00-18:00周一至周六：9:00-21:00；周日：9:00-18:00
保修期限是自销售发票注明的发票开具之日起算，整机保修1年，专用充电池，存储卡主要部件保修1年。不能出示有效发票和本卡（能够证明产品在三包有效期内的除外），使用盗版软件造成损坏、使用过程中感染病毒造成损坏的，以及自行改装、修理或由非索尼指定的第三方拆动、改装、维修的产品不实行三包政策。保修期限是自销售发票注明的发票开具之日起算，整机保修1年，专用充电池，存储卡主要部件保修1年。不能出示有效发票和本卡（能够证明产品在三包有效期内的除外），使用盗版软件造成损坏、使用过程中感染病毒造成损坏的，以及自行改装、修理或由非索尼指定的第三方拆动、改装、维修的产品不实行三包政策。保修期限是自销售发票注明的发票开具之日起算，整机保修1年，专用充电池，存储卡主要部件保修1年。不能出示有效发票和本卡（能够证明产品在三包有效期内的除外），使用盗版软件造成损坏、使用过程中感染病毒造成损坏的，以及自行改装、修理或由非索尼指定的第三方拆动、改装、维修的产品不实行三包政策。& 产品点评对比
索尼A7SII和索尼A7RII和索尼RX10 II点评对比
参数仅为参考，产品以当地实际销售实物为准。}