Sample Text最近适马公司即将推出的全新数码单反SD14再次激起了人们对FOVEON X3图像传感器的遐想，而这款DSLR就机体性能以及功能表现方面的考论也是众说纷纭。但是，对于强调画质和色彩表现的DSLR来说，出色的成像绝对是每一个摄影爱好者最为关心的问题，那么像素水平达到1400万的新型FOVEON X3又能否令我们满意呢？

近日，在国外某网站，一位业内人士爆出SD14工程样品的实拍样片。虽然考虑到工程样品与正式零售版应该存在较大差异，但是由于这些样片均提供了完善的EXIF信息，因此它们对于我们了解SD14的画质表现还是具有一定参考价值的。[

Make: SIGMA
Model: SIGMA SD14
X-Resolution: 180/1
Y-Resolution: 180/1
Resolution unit: Inch
Firmware version: SIGMA PhotoPro 3
Exposure time [s]: 1/400
Exposure program: Aperture priority
Exposure mode: Auto
Exposure bias [EV]: 0.0
F-Number: F8.0
Focal length [mm]: 26
35mm focal length [mm]: 44
ISO value: 100
Max. aperture: F21.9
Flash: Not fired
Metering mode: Multi-segment
Light source: Unknown
White balance: Manual
Colour space: sRGB
Sensing method: One-chip color area sensor
Custom rendered: Custom
Subject program: Standard
Image width: 2640
Image height: 1760

Make: SIGMA
Model: SIGMA SD14
X-Resolution: 180/1
Y-Resolution: 180/1
Resolution unit: Inch
Firmware version: SIGMA PhotoPro 3
Exposure time [s]: 1/125
Exposure program: Aperture priority
Exposure mode: Auto
Exposure bias [EV]: 0.0
F-Number: F8.0
Focal length [mm]: 40
35mm focal length [mm]: 68
ISO value: 100
Max. aperture: F21.9
Flash: Not fired
Metering mode: Multi-segment
Light source: Unknown
White balance: Manual
Colour space: sRGB
Sensing method: One-chip color area sensor
Custom rendered: Custom
Subject program: Standard
Image width: 1760
Image height: 2640

Make: SIGMA
Model: SIGMA SD14
X-Resolution: 180/1
Y-Resolution: 180/1
Resolution unit: Inch
Firmware version: SIGMA PhotoPro 3
Exposure time [s]: 1/160
Exposure program: Aperture priority
Exposure mode: Auto
Exposure bias [EV]: 0.70
F-Number: F8.0
Focal length [mm]: 35
35mm focal length [mm]: 59
ISO value: 100
Max. aperture: F21.9
Flash: Not fired
Metering mode: Multi-segment
Light source: Unknown
White balance: Auto
Colour space: sRGB
Sensing method: One-chip color area sensor
Custom rendered: Custom
Subject program: Standard
Image width: 2640
Image height: 1760

Make: SIGMA
Model: SIGMA SD14
Orientation: Top / left side
X-Resolution: 180/1
Y-Resolution: 180/1
Resolution unit: Inch
Firmware version: SIGMA PhotoPro 3
Exposure time [s]: 1/40
Exposure program: Aperture priority
Exposure mode: Auto
Exposure bias [EV]: 0.70
F-Number: F8.0
Focal length [mm]: 25
35mm focal length [mm]: 42
ISO value: 100
Max. aperture: F21.9
Flash: Not fired
Metering mode: Multi-segment
Light source: Unknown
White balance: Auto
Colour space: sRGB
Sensing method: One-chip color area sensor
Custom rendered: Custom
Subject program: Standard
Image width: 2640
Image height: 1760

Make: SIGMA
Model: SIGMA SD14
Orientation: Top / left side
X-Resolution: 180/1
Y-Resolution: 180/1
Resolution unit: Inch
Firmware version: SIGMA PhotoPro 3
Exposure time [s]: 1/1000
Exposure program: Aperture priority
Exposure mode: Auto
Exposure bias [EV]: 0.0
F-Number: F5.0
Focal length [mm]: 70
35mm focal length [mm]: 119
ISO value: 100
Max. aperture: F32
Flash: Not fired
Metering mode: Multi-segment
Light source: Unknown
White balance: Manual
Colour space: sRGB
Sensing method: One-chip color area sensor
Custom rendered: Custom
Subject program: Standard
Image width: 1760
Image height: 2640

Model: SIGMA SD14
Orientation: Top / left side
X-Resolution: 180/1
Y-Resolution: 180/1
Resolution unit: Inch
Firmware version: SIGMA PhotoPro 3
Exposure time [s]: 1/20
Exposure program: Normal
Exposure mode: Auto
Exposure bias [EV]: 0.0
F-Number: F2.8
Focal length [mm]: 31
35mm focal length [mm]: 52
ISO value: 400
Max. aperture: F21.9
Flash: Not fired
Metering mode: Multi-segment
Light source: Unknown
White balance: Auto
Colour space: sRGB
Sensing method: One-chip color area sensor
Custom rendered: Custom
Subject program: Standard
Image width: 1760
Image height: 2640
http://publish.it168.com/shumaxiangji/showBigPic.asp?cDocid=20061010015705&picid=136512.jpg&cchannel=19

Make: SIGMA
Model: SIGMA SD14
Orientation: Top / left side
X-Resolution: 180/1
Y-Resolution: 180/1
Resolution unit: Inch
Firmware version: SIGMA PhotoPro 3
Exposure time [s]: 1/500
Exposure program: Aperture priority
Exposure mode: Auto
Exposure bias [EV]: 0.0
F-Number: F2.8
Focal length [mm]: 40
35mm focal length [mm]: 68
ISO value: 100
Max. aperture: F21.9
Flash: Not fired
Metering mode: Multi-segment
Light source: Unknown
White balance: Manual
Colour space: sRGB
Sensing method: One-chip color area sensor
Custom rendered: Custom
Subject program: Standard
Image width: 1760
Image height: 2640

http://publish.it168.com/shumaxiangji/showBigPic.asp?cDocid=20061010015705&picid=136514.jpg&cchannel=19

Make: SIGMA
Model: SIGMA SD1427 PM
Orientation: Top / left side
X-Resolution: 180/1
Y-Resolution: 180/1
Resolution unit: Inch
Firmware version: SIGMA PhotoPro 3
Exposure time [s]: 1/500
Exposure program: Aperture priority
Exposure mode: Auto
Exposure bias [EV]: 0.0
F-Number: F8.0
Focal length [mm]: 40
35mm focal length [mm]: 68
ISO value: 100
Max. aperture: F21.9
Flash: Not fired
Metering mode: Multi-segment
Light source: Unknown
White balance: Manual
Colour space: sRGB
Sensing method: One-chip color area sensor
Custom rendered: Custom
Subject program: Standard
Image width: 1760
Image height: 2640

　　尽管这些照片的拍摄质量很不稳定，部分照片在锐利度和噪点表现上差强人意，而且在紫边的控制上也无法令人满意，但是这些未经后期处理的照片所体现出的色彩表现（如第一张）以及个别样片所表现出的高素质（如最后一张）还是让我们对FOVEON X3充满了期望。

关于FOVEON X3图像传感器：这种光学传感器上的感光像素被分为三层，每一层用于接收不同的色彩（红、蓝、绿）。基于这一原理，传感器上的单个感光原件（分为三层）尺寸要比传统CCD或者CMOS大得多，而整个传感器的尺寸又可以做得很小，因此其在噪点抑制和减少功耗上具有明显优势，并且可以获得非常逼真的色彩表现以及非常高的宽容度。
http://publish.it168.com/shumaxiangji/showBigPic.asp?cDocid=20061010015705&picid=136521.jpg&cchannel=19

期待中。