Camera Rocket Review Our evaluation of A58 vs A55

Image Quality

RAW image quality independent of lens

SLT A58
9.5
SLT A55
9.7
DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range

Focusing

How fast and easily does the camera nail focus

SLT A58
6.5
SLT A55
7.0
Focus lag, cross type focus points and focus points

Responsiveness

How much delay is there between you and your photo?

SLT A58
7.8
SLT A55
8.2
Focus lag, continuous shooting and Startup delay

Reviews

What do the experts think?

SLT A58
9.2
SLT A55
8.9
Reviews from sonyalpharumors.com and techradar.com

Camera Rocket Score

Image Quality, Focusing, Responsiveness and Reviews

SLT A58
8.9
SLT A55
8.9

Winner
Sony SLT A58 

Camera Rocket recommends the Sony SLT A58  based on its reviews.

See full details

Benchmarks Real world tests of SLT A58 vs A55

Low light image quality Highest ISO setting that still achieves great image quality

SLT A58
753 ISO
SLT A55
816 ISO

Resolution Results from photos of standard resolution charts

SLT A58
2,400 LPH
SLT A55
2,600 LPH

Focus lag Delay between fully pressing shutter to image capture

SLT A58
326 ms
SLT A55
220 ms

Shutter lag Delay to take a photo when prefocused

SLT A58
54 ms
SLT A55
103 ms

Startup delay Delay from power on to first photo

SLT A58
1,900 ms
SLT A55
900 ms

Continuous shooting Delay between fully pressing shutter to image capture

SLT A58
8 fps
SLT A55
10 fps

Features Key features of the SLT A58  vs A55 

Megapixels Maximum resolution images are captured at

SLT A58
20.1 MP
SLT A55
16 MP

Max ISO Maximum light sensitivity of the sensor

SLT A58
25,600 ISO
SLT A55
25,600 ISO

Focus points How many different points the camera can focus on

Screen size Larger screens make it easier to preview and review photos

SLT A58
2.7"
SLT A55
3"

Viewfinder size Large viewfinders are brighter and more comfortable to use

SLT A58
0.65x
SLT A55
0.72x

Pixel size How much area of the sensor is dedicated to each pixel

SLT A58
18.3 microns
SLT A55
22.9 microns

Reviews Word on the street

SLT A58  vs A55 

8.0
6.0
If you're not that interested in raw format shooting, you've got a wide range of fun and interesting features on offer here.
SLT A58

Specifications Full list of technical specs

sensor

SLT A58  vs
A55 
Type CMOS CMOS
Megapixels 20.1 MP 16 MP
Resolution 5176 x 3880 4912 x 3264
Size APS-C APS-C
Area 23.5 x 15.6 mm 23.5 x 15.6 mm
Crop factor 1.5x 1.5x
Pixel size 18.3 microns 22.9 microns
Light sensitivity 100 ISO to 16,000 ISO 100 ISO to 12,800 ISO
Light sensitivity (Boost) 16,000 ISO to 25,600 ISO 12,800 ISO to 25,600 ISO
Codecs
RAW
JPEG
Self cleaning sensor Yes Yes
Tested vertical resolution 2,400 LPH 2,600 LPH
Tested horizontal resolution 2,400 LPH 2,600 LPH

focus system

Type Phase detection Phase detection
Focus points 15 15
Cross type focus points 3 3
Supports continuous Yes No

shutter

Min 30 s 30 s
Max 1/4000 s 1/4000 s

form factor

Size 129 x 95 x 78 mm 124 x 92 x 85 mm
Thickness 78 mm 85 mm
Weight 492 g 500 g
Is weather sealed No No

features

Is a smart camera No No
Includes a GPS No Yes
Supports HDR Yes Yes
Automatic panorama Yes Yes
Create realistic 3D images No Yes
Image stabilization
Sensor shift

video

SLT A58  vs
A55 
Video 1920 x 1080 @ 29.97 fps 1920 x 1080 @ 30 fps
Shoots video in 24p Yes No
Shoots high speed video No No
External mic jack 3.5mm 3.5mm
Autofocus while shooting video Phase detection Phase detection
Autofocus type Phase detection Phase detection

display

Type LCD LCD
Size 2.7" 3"
Resolution 460 k dots 921 k dots
Has a touch screen No No
Has a flip out screen No Yes
Supports live view Yes Yes

viewfinder

Viewfinder mirror Translucent Translucent
Viewfinder Yes Yes
Type Electronic Electronic
Magnification 1x 1.1x
Viewfinder size 0.65x 0.72x

performance

Max continuous shooting 8 fps 10 fps
Battery life 690 330
Continuous shooting
10 fps, JPEG
8 fps
Focus lag 326 ms 220 ms
Shutter lag 54 ms 103 ms
Startup delay 1,900 ms 900 ms
Sony SLT A58
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Sony SLT A55
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