Camera Rocket Review Our evaluation of A3000 vs T3

Image Quality

RAW image quality independent of lens

DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range


How fast and easily does the camera nail focus

Focus lag and focus points


How much delay is there between you and your photo?

Focus lag, continuous shooting and Startup delay


What do the experts think?

Reviews from,, and

Camera Rocket Score

Image Quality, Focusing, Responsiveness and Reviews

Sony Alpha A3000 

Camera Rocket recommends the Sony Alpha A3000  based on its image quality, focusing and reviews.

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Benchmarks Real world tests of Alpha A3000 vs Rebel T3

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

Alpha A3000
1,068 ISO
Rebel T3
755 ISO

Focus lag Delay between fully pressing shutter to image capture

Alpha A3000
279 ms
Rebel T3
309 ms

Shutter lag Delay to take a photo when prefocused

Alpha A3000
22 ms
Rebel T3
113 ms

Startup delay Delay from power on to first photo

Alpha A3000
2,200 ms
Rebel T3
300 ms

Continuous shooting Delay between fully pressing shutter to image capture

Alpha A3000
3.5 fps
Rebel T3
3 fps

Battery life How many photos per battery charge (CIPA)

Alpha A3000
480 photos
Rebel T3
700 photos

Features Key features of the Alpha A3000  vs Rebel T3 

Megapixels Maximum resolution images are captured at

Alpha A3000
20.1 MP
Rebel T3
12.2 MP

Max ISO Maximum light sensitivity of the sensor

Alpha A3000
16,000 ISO
Rebel T3
6,400 ISO

Focus points How many different points the camera can focus on

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

Viewfinder size Large viewfinders are brighter and more comfortable to use

Alpha A3000
Rebel T3

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

Alpha A3000
18.3 microns
Rebel T3
26.8 microns

Reviews Word on the street

Specifications Full list of technical specs


Alpha A3000  vs
Rebel T3 
Megapixels 20.1 MP 12.2 MP
Resolution 5175 x 3875 4272 x 2848
Area 23.5 x 15.6 mm 22.2 x 14.7 mm
Crop factor 1.5x 1.6x
Pixel size 18.3 microns 26.8 microns
Light sensitivity 100 ISO to 16,000 ISO 100 ISO to 6,400 ISO
Self cleaning sensor No No

focus system

Type Contrast detection Phase detection
Focus points 25 9
Supports continuous Yes No


Viewfinder mirror None Opaque
Viewfinder Yes Yes
Type Electronic Pentamirror
Coverage 100% 95%
Magnification 0.7x 0.87x
Viewfinder size 0.46x 0.54x


Max continuous shooting 3.5 fps 3 fps
Battery life 480 700
Continuous shooting
3 fps, JPEG
3.5 fps
Focus lag 279 ms 309 ms
Shutter lag 22 ms 113 ms
Startup delay 2,200 ms 300 ms


Alpha A3000  vs
Rebel T3 
Video 1920 x 1080 @ 24 fps (17 Mbps, AVCHD, MPEG-4) 1280 x 720 @ 30 fps
Shoots video in 24p Yes No
Shoots high speed video No No
External mic jack None None
Autofocus while shooting video Contrast detection


Size 3" 2.7"
Resolution 230 k dots 230 k dots
Has a touch screen No No
Has a flip out screen No No
Supports live view Yes Yes


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

form factor

Size 128 x 90.9 x 84.5 mm 130 x 100 x 78 mm
Thickness 84.5 mm 78 mm
Weight 353 g 459 g
Is weather sealed No No


Includes a GPS No No
Supports HDR Yes No
WiFi None None
Automatic panorama Yes No
Create realistic 3D images No No
Image stabilization
Sony Alpha A3000
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Canon Rebel T3
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