Camera Rocket Review Our evaluation of A77 vs A33

Image Quality

RAW image quality independent of lens

SLT A77
9.7
SLT A33
9.1
DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range

Focusing

How fast and easily does the camera nail focus

SLT A77
8.7
SLT A33
7.0
Focus lag, cross type focus points and focus points

Responsiveness

How much delay is there between you and your photo?

SLT A77
8.9
SLT A33
8.3
Focus lag, continuous shooting and Startup delay

Reviews

What do the experts think?

SLT A77
9.3
SLT A33
9.5
Reviews from sonyalpharumors.com, techradar.com, trustedreviews.com, photographyblog.com and 3 more

No winner declared

Too close to call

Benchmarks Real world tests of SLT A77 vs A33

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

SLT A77
801 ISO
SLT A33
591 ISO

Resolution Results from photos of standard resolution charts

SLT A77
2,400 LPH
SLT A33
1,900 LPH

Focus lag Delay between fully pressing shutter to image capture

SLT A77
124 ms
SLT A33
215 ms

Shutter lag Delay to take a photo when prefocused

SLT A77
54 ms
SLT A33
102 ms

Startup delay Delay from power on to first photo

SLT A77
3,100 ms
SLT A33
800 ms

Continuous shooting Delay between fully pressing shutter to image capture

SLT A77
12 fps
SLT A33
7 fps

Features Key features of the SLT A77  vs A33 

Megapixels Maximum resolution images are captured at

SLT A77
24 MP
SLT A33
14 MP

Max ISO Maximum light sensitivity of the sensor

SLT A77
25,600 ISO
SLT A33
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

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

SLT A77
15.3 microns
SLT A33
26.1 microns

Reviews Word on the street

SLT A77  vs A33 

10.0
9.0
The continuous shooting speed of 12fps at full resolution when using the EVF or in Live View mode is amazing for a prosumer camera, especially one with so many megapixels, while Sony's long-standing D-Range Optimizer and HDR functions help to even out tricky exposures, for example where a bright background would normally throw the foreground into deep shadow.
SLT A77

Specifications Full list of technical specs

sensor

SLT A77  vs
A33 
Type CMOS CMOS
Megapixels 24 MP 14 MP
Resolution 6000 x 4000 4592 x 3056
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 15.3 microns 26.1 microns
Light sensitivity 100 ISO to 16,000 ISO 100 ISO to 12,800 ISO
Light sensitivity (Boost) 50 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 1,900 LPH
Tested horizontal resolution 2,400 LPH 2,100 LPH

focus system

Type Phase detection Phase detection
Focus points 19 15
Cross type focus points 11 3
Supports continuous No No

shutter

Min 30 s 30 s
Max 1/8000 s 1/4000 s

performance

Max continuous shooting 12 fps 7 fps
Battery life 530 270
Continuous shooting
12 fps, JPEG
7 fps, JPEG
Focus lag 124 ms 215 ms
Shutter lag 54 ms 102 ms
Startup delay 3,100 ms 800 ms

video

SLT A77  vs
A33 
Video 1920 x 1080 @ 60 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 3" 3"
Resolution 921 k dots 921 k dots
Has a touch screen No No
Has a flip out screen Yes Yes
Supports live view Yes Yes

viewfinder

Viewfinder mirror Translucent Opaque
Viewfinder Yes Yes
Type Electronic Electronic

form factor

Size 143 x 104 x 81 mm 124 x 92 x 85 mm
Thickness 81 mm 85 mm
Weight 732 g 500 g
Is weather sealed Yes No

features

Includes a GPS Yes No
Supports HDR Yes Yes
Automatic panorama Yes Yes
Create realistic 3D images Yes Yes
Image stabilization
Sensor shift
Sony SLT A77
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Sony SLT A33
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