Sony NEX-EA50 NXCAM Handbook page 10

SENSOR AND LENS
16.7 million pixel APS-C size Exmor HD CMOS sensor
The NEX-EA50 delivers rich "bokeh" that brings the subject to life as well as excellent sensitivity to reduce noise in low-light
settings. The large APS-C size sensor produces images at sufficient resolution to allow digital zooming with no loss of picture quality,
effectively transforming a single focal length lens into a high-quality zoom lens.
Depth of field
At a given angle of field, a larger sensor with a longer focal
length will create more background blurring. When depth of
field is relatively shallow, this accentuates the region that is
in focus and creates a striking sense of presence.
TIPS
About depth of field
To capture the entire view from foreground to background in focus, photographers typically use a wide-angle lens with short
focal length together with a narrow aperture, and try to get a reasonable distance from the main subject.
Conversely, to accentuate the subject by blurring the background or surrounding scenery, a telephoto lens with longer focal
length is used in combination with a wide aperture, and the camera is brought closer to the subject.
In theory, depth of field is governed by three factors: f-stop (aperture), focal length and distance from the subject. In practice,
however, the distance between the subject and the background also influences the amount of blurring.
APS-C
Chapter
Sensor sizes
2/3 size
High sensitivity and low noise
The larger the sensor, the greater the area available for
capturing light. More light in turn boosts the sensitivity and
the signal-to-noise ratio, allowing the camera to produce
clear images with minimal noise even at maximum gain in
low-light settings.
8 8
1
1/3 size