Camera Rocket Review Our evaluation of A77 vs A37

Image Quality

RAW image quality independent of lens

SLT A77
8.9
SLT A37
8.8
DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range

Focusing

How fast and easily does the camera nail focus

SLT A77
9.0
SLT A37
8.5
Focus lag, cross type focus points and focus points

Responsiveness

How much delay is there between you and your photo?

SLT A77
9.1
SLT A37
9.4
Focus lag, continuous shooting and Startup delay

Reviews

What do the experts think?

SLT A77
9.3
SLT A37
9.4
Reviews from sonyalpharumors.com, techradar.com, trustedreviews.com, photographyblog.com and 3 more

Camera Rocket Score

Image Quality, Focusing, Responsiveness and Reviews

SLT A77
9.1
SLT A37
9.1

Winner
Sony SLT A37 

Camera Rocket recommends the Sony SLT A37  based on its responsiveness and reviews.

See full details

Benchmarks Real world tests of SLT A77 vs A37

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

SLT A77
801 ISO
SLT A37
799 ISO

Focus lag Delay between fully pressing shutter to image capture

SLT A77
124 ms
SLT A37
109 ms

Shutter lag Delay to take a photo when prefocused

SLT A77
54 ms
SLT A37
57 ms

Startup delay Delay from power on to first photo

SLT A77
3,100 ms
SLT A37
900 ms

Continuous shooting Delay between fully pressing shutter to image capture

SLT A77
12 fps
SLT A37
7 fps

Battery life How many photos per battery charge (CIPA)

SLT A77
530 photos
SLT A37
500 photos

Features Key features of the SLT A77  vs A37 

Megapixels Maximum resolution images are captured at

SLT A77
24 MP
SLT A37
16 MP

Max ISO Maximum light sensitivity of the sensor

SLT A77
25,600 ISO
SLT A37
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 A77
3"
SLT A37
2.6"

Viewfinder size Large viewfinders are brighter and more comfortable to use

SLT A77
0.72x
SLT A37
0.71x

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

SLT A77
15.3 microns
SLT A37
22.8 microns

Reviews Word on the street

SLT A77  vs A37 

10.0
10.0
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

8.2
7.3
For the LCD, Sony created a fairly complex mechanism to enable its LCD to tilt as well as swivel.
SLT A77

Overall

8.6 Out of 10
8.8 Out of 10

Specifications Full list of technical specs

sensor

SLT A77  vs
A37 
Type CMOS CMOS
Megapixels 24 MP 16 MP
Resolution 6000 x 4000 4912 x 3264
Size APS-C APS-C
Area 23.5 x 15.6 mm 23.4 x 15.6 mm
Crop factor 1.5x 1.5x
Pixel size 15.3 microns 22.8 microns
Light sensitivity 100 ISO to 16,000 ISO 100 ISO to 16,000 ISO
Light sensitivity (Boost) 50 ISO to 25,600 ISO 100 ISO to 25,600 ISO
Codecs
RAW
JPEG
Self cleaning sensor Yes Yes

focus system

Type Phase detection Phase detection
Focus points 19 15
Cross type focus points 11 3

viewfinder

Viewfinder mirror Translucent Opaque
Viewfinder Yes Yes
Type Electronic Electronic
Coverage 100% 100%
Magnification 1.1x 1.09x
Viewfinder size 0.72x 0.71x
Display type OLED LCD

performance

Max continuous shooting 12 fps 7 fps
Battery life 530 500
Continuous shooting
12 fps, JPEG
7 fps
5.5 fps
Focus lag 124 ms 109 ms
Shutter lag 54 ms 57 ms
Startup delay 3,100 ms 900 ms

video

SLT A77  vs
A37 
Video 1920 x 1080 @ 60 fps 1920 x 1080 @ 29.97 fps
Shoots video in 24p Yes Yes
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
Autofocus supports continuous Yes Yes

display

Type LCD LCD
Size 3" 2.6"
Resolution 921 k dots 230 k dots
Has a touch screen No No
Has a flip out screen Yes Yes
Supports live view Yes Yes

shutter

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

form factor

Size 143 x 104 x 81 mm 124 x 92 x 85 mm
Thickness 81 mm 85 mm
Weight 732 g 506 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 A37
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