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Specifications
Camera
[System]
Camera Type
Interchangeable Lens
Digital Camera
Lens A-mount lens
[Image sensor]
Image format
SLT-A55/A55V
23.5×15.6 mm (APS-C
format) CMOS image
sensor
SLT-A33
23.4×15.6 mm (APS-C
format) CMOS image
sensor
Total pixel number of image sensor
SLT-A55/A55V
Approx. 16 700 000 pixels
SLT-A33
Approx. 14 600 000 pixels
Effective pixel number of camera
SLT-A55/A55V
Approx. 16 200 000 pixels
SLT-A33
Approx. 14 200 000 pixels
[SteadyShot]
System Image sensor-shift
mechanism
Effect Approx. 2.5 to 4 EV in
shutter speed (depending
on shooting conditions and
the attached lens)
[Anti-Dust]
System Charge protection coating
on Low-Pass Filter and
image sensor-shift
mechanism
[Auto focus system]
System TTL phase-detection
system, 15 points (3 points
cross type)
Sensitivity Range
–1 to 18 EV (at ISO 100
equivalent)
AF illuminator
Approx. 1 to 5 m (3.3 to
16.4 feet)
[Live View]
Type Main sensor Live View
(Translucent mirror
mechanism)
Image format
“Exmor” CMOS sensor
Frame coverage
100%
[Electronic viewfinder]
Type Electronic viewfinder
(color)
Screen size 1.2 cm (0.46 type)
Total number of dots
1 440 000 dots conversion
Available screen size displayed
1.1 cm (0.43 type)
Available number of dots displayed
1 152 000 dots conversion
Frame coverage
100%
Magnification
1.10 × with 50 mm lens at
infinity, –1 m
–1
(diopter)
Eye Relief Approximately 19 mm
from the eyepiece, 18 mm
from the eyepiece frame at
–1 m
–1