除了更复杂的远摄变焦设置外,Xperia 1 IV 的摄像头硬件与其同品牌竞品 Xperia 5 IV 基本相同。然而,尽管两款摄像头规格相似,但整体图像质量和摄像头性能并不完全相同。Xperia 1 IV 的整体得分比 Xperia 5 IV 低 1 分,两者之间的差异主要体现在色彩和自动对焦方面:Xperia 5 IV 的对焦效果更好。不过,旗舰 Xperia 1 IV 在变焦方面表现则较好。
索尼 Xperia 1 IV 摄像头在低光场景中表现出色,拍出了相当不错的细节和良好的曝光度。然而,它的动态范围有限,产生了暗部和亮部剪切,图像噪点通常也很明显。在视频模式下,该摄像头的动态范围比照片略微有限,亮度噪点也悄悄地进入了画面。照片和视频的色彩宜人且温暖,但在录制视频时有时可以观察到白平衡不稳定。
索尼 Xperia 1 IV – 曝光良好,轻微的暗部剪切
测试摘要
关于DXOMARK摄像头测试:在 DXOMARK 进行 Camera 评鉴时,我们在实验室和现实生活情境中拍摄各种各样的主题,然后根据客观测试和感知测试来进行评分。进行客观测试时,我们使用实验室环境中的测量软件直接计算测试结果;感知测试则是由一群图像专家根据一套复杂的度量标准,就需要人为判断的图像质量进行各个方面的比较。智能手机测试需要一个由工程师和技术员组成的团队进行大约一周的测试。他们分别对照片、变焦和视频质量进行评分,然后将这些分数合并为总分,以便在不同手机的摄像头之间进行比较。关于DXOMARK摄像头基准的更多信息,请点击这里。关于智能手机摄像头得分的更多细节,请点击这里。以下部分集合了我们在DXOMARK实验室进行的详尽测试和分析的主要内容。根据需求,我们可以提供更详细的性能评估报告。您可以 与我们联系。
使用智能手机拍摄静态图像时,索尼 Xperia 1 IV 是一款不错的选择,但在我们的测试中还是无法与同类的顶级产品相媲美。它在大多数情况下都能产生良好的曝光并摄入良好的细节,但动态范围有限,导致在棘手的高对比度场景中出现亮部和/或暗部剪切。我们的测试人员还观察到一些不稳定性,并发现预览图像并不总是很靠谱。总体而言,该手机的图像质量与 Xperia 5 IV 非常接近,但这并不足为奇,因为除了远摄模块外,这两款设备都使用相同的摄像头硬件。两款摄像头之间的差异主要体现在曝光和色彩方面。
在我们的测试中,索尼 Xperia 1 IV 的自动对焦速度比某些竞品稍慢且不一致。我们的测试人员在按下快门和实际拍摄之间测得了相当长的延迟。虽然在大部分时间里,对焦都可以准确锁定,但对焦时间的变化在低光和室内条件下非常明显。我们还注意到,在一些高对比度照片中存在轻微的对焦不准确。
Edge acutance irregularity and average shooting delay along all tested conditions
This graph illustrates focus irregularity and speed as well as zero shutter lag capability, for different light conditions. Each point is the result of the aggregation of the measurements for a group of 30 pictures per conditions. The y-axis shows the average acutance difference with the best focus in percentage. The lower the better. On the x-axis, a negative delay means the photo is taken just before the user triggers the shutter, a positive delay means the photo is taken just after. The closer to 0 ms, the better. Acutance and delay are measured respectively using the Dead leaves chart and the LED Universal Timer, on the AF HDR Setup.
Autofocus irregularity and speed: 100Lux Δ7EV TL84 Handheld
This graph illustrates focus accuracy and speed and also zero shutter lag capability by showing the edge acutance versus the shooting time measured on the AFHDR setup on a series of pictures. All pictures were taken at 100Lux with TL84 illuminant, 500ms after the defocus. On this scenario, the backlit panels in the scene are set up to simulate a fairly high dynamic range: the luminance ratio between the brightest point and a 18% reflective gray patch is 7, which we denote by a Exposure Value difference of 7. The edge acutance is measured on the four edges of the Dead Leaves chart, and the shooting time is measured on the LED Universal Timer.
索尼 Xperia 1 IV 的景深比谷歌 Pixel 7 更大,赋予场景后方的拍摄对象更好的清晰度。在拍摄集体照时,堪为一大优势。
DXOMARK CHART (DMC) detail preservation score vs lux levels for tripod and handheld conditions
This graph shows the evolution of the DMC detail preservation score with the level of lux, for two holding conditions. DMC detail preservation score is derived from an AI-based metric trained to evaluate texture and details rendering on a selection of crops of our DXOMARK chart.
在明亮的日光下拍摄时,照片显示出良好的纹理,但与 Xperia 5 IV 和 Pixel 7 相比,在该手机上可以观察到一些细节损失。我们的测试人员还观察到该手机在高对比度场景里和低光下损失了细节,但纹理呈现在所有光照条件下都很自然。
在噪点测试中,我们分析在现实生活中和在实验室图片上拍摄的图像噪点的各种属性,例如强度、色度、颗粒和结构。就自然图像而言,我们特别注意面部、风景以及阴暗区域和高动态范围条件下的噪点。我们也会评鉴自然图像中的运动物体上的噪点。我们在 1 到 1000 勒克斯之间的各种照明条件以及不同类型的动态范围条件下对着图片进行拍摄,并对所拍摄的图像进行客观测量。我们使用枯叶图并进行标准化的测量,例如源自 ISO 15739 的视觉噪点。
Visual noise evolution with illuminance levels in handheld condition
This graph shows the evolution of visual noise metric with the level of lux in handheld condition. The visual noise metric is the mean of visual noise measurement on all patches of the Dead Leaves chart in the AFHDR setup. DXOMARK visual noise measurement is derived from ISO15739 standard.
Xperia 1 IV 的图像噪点比某些竞品更明显,在所有条件下通常都会出现亮度噪点,在素色区域尤其如此。在室内条件或低光下拍摄时,我们还观察到一些色度噪点变得更明显。总体而言,Xperia 1 IV 在噪点控制方面的表现与 Xperia 5 IV 相同。
DXOMARK CHART (DMC) detail preservation score per focal length
This graph shows the evolution of the DMC detail preservation score with respect to the full-frame equivalent focal length for different light conditions. The x-axis represents the equivalent focal length measured for each corresponding shooting distance and the y-axis represents the maximum details preservation metric score: higher value means better quality. Large dots correspond to zoom ratio available in the user interface of the camera application.
DXOMARK CHART (DMC) detail preservation score per focal length
This graph shows the evolution of the DMC detail preservation score with respect to the full-frame equivalent focal length for different light conditions. The x-axis represents the equivalent focal length measured for each corresponding shooting distance and the y-axis represents the maximum details preservation metric score: higher value means better quality. Large dots correspond to zoom ratio available in the user interface of the camera application.
DXOMARK CHART (DMC) detail preservation score per focal length
This graph shows the evolution of the DMC detail preservation score with respect to the full-frame equivalent focal length for different light conditions. The x-axis represents the equivalent focal length measured for each corresponding shooting distance and the y-axis represents the maximum details preservation metric score: higher value means better quality. Large dots correspond to zoom ratio available in the user interface of the camera application.
DXOMARK CHART (DMC) detail preservation score per focal length
This graph shows the evolution of the DMC detail preservation score with respect to the full-frame equivalent focal length for different light conditions. The x-axis represents the equivalent focal length measured for each corresponding shooting distance and the y-axis represents the maximum details preservation metric score: higher value means better quality. Large dots correspond to zoom ratio available in the user interface of the camera application.
与本次测试中的竞品相比,Xperia 1 IV 在近距离上拍摄时,图像细节损失相当多,这是因为在近距离范围内,Xperia 1 IV 仍使用主摄像头对画面进行数码变焦,反观 Xperia 5 IV 在这种情况下已经切换到远摄模块了。
索尼 Xperia 1 IV - 近距离上的远摄变焦
索尼 Xperia 1 IV - 细节丢失很严重
索尼 Xperia 5 IV - 近距离上的远摄变焦
索尼 Xperia 5 IV - 损失细节
谷歌 Pixel 7 - 近距离上的远摄变焦
谷歌Pixel 7 - 损失细节
然而,在远距上拍摄时,该手机的图像细节比 Xperia 5 IV 和 谷歌 Pixel 7 更好,但是,明显缺乏对比度。
DXOMARK CHART (DMC) detail preservation video score vs lux levels
This graph shows the evolution of the DMC detail preservation video score with the level of lux in video. DMC detail preservation score is derived from an AI-based metric trained to evaluate texture and details rendering on a selection of crops of our DXOMARK chart.
在我们的纹理测试中,Xperia 1 IV 往往会在我们用于感知分析的现实生活场景中拍出比 Xperia 5 IV 更好的细节,但在实验室内进行客观测量的情况并非总是如此,具体取决于所使用的测试设置。在这一示例场景中,Xperia 1 IV 摄入了更好的被摄体细节。然而,边缘细节虽然更清晰,但纹理细节不如谷歌 Pixel 7 那样丰富。
Spatial visual noise evolution with the illuminance level
This graph shows the evolution of spatial visual noise with the level of lux. Spatial visual noise is measured on the visual noise chart in the video noise setup. DXOMARK visual noise measurement is derived from ISO15739 standard.
Temporal visual noise evolution with the illuminance level
This graph shows the evolution of temporal visual noise with the level of lux. Temporal visual noise is measured on the visual noise chart in the video noise setup.
视频中的亮度噪点通常控制得很好,但随着灯光变暗,亮度噪点也会变得更加明显。在室内和低光条件下,Xperia 1 IV 的测标曝光也低于谷歌 Pixel 7,因此该索尼手机的噪点较少,Pixel 7 的噪点分数也较低。