Camera Rocket Review Our evaluation of A77 vs D7000

Image Quality

RAW image quality independent of lens

SLT A77
9.7
D7000
10.0
DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range

Focusing

How fast and easily does the camera nail focus

SLT A77
8.7
D7000
7.4
Focus lag, cross type focus points and focus points

Responsiveness

How much delay is there between you and your photo?

SLT A77
8.9
D7000
8.4
Focus lag, continuous shooting and Startup delay

Reviews

What do the experts think?

SLT A77
9.3
D7000
9.1
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 D7000

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

SLT A77
801 ISO
D7000
1,167 ISO

Resolution Results from photos of standard resolution charts

SLT A77
2,400 LPH
D7000
2,000 LPH

Focus lag Delay between fully pressing shutter to image capture

SLT A77
124 ms
D7000
238 ms

Shutter lag Delay to take a photo when prefocused

SLT A77
54 ms
D7000
53 ms

Startup delay Delay from power on to first photo

SLT A77
3,100 ms
D7000
400 ms

Continuous shooting Delay between fully pressing shutter to image capture

SLT A77
12 fps
D7000
6 fps

Features Key features of the SLT A77  vs D7000 

Megapixels Maximum resolution images are captured at

SLT A77
24 MP
D7000
16.1 MP

Max ISO Maximum light sensitivity of the sensor

SLT A77
25,600 ISO
D7000
25,600 ISO

Focus points How many different points the camera can focus on

SLT A77
19
D7000
39

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

SLT A77
3"
D7000
3"

Viewfinder size Large viewfinders are brighter and more comfortable to use

SLT A77
0.72x
D7000
0.62x

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

SLT A77
15.3 microns
D7000
22.9 microns

Reviews Word on the street

SLT A77  vs D7000 

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

9.0
9.0
While it’s 12fps continuous shooting speed will certainly appeal to those who regularly shoot fast-moving action, there’s a lot more to like about the A77, not least the speedy AF performance, excellent range of movie recording options and high standard of image quality.
SLT A77

8.2
8.5
It's not a lightweight camera, but it feels very sturdy and well built, with a solid grip and enough heft to offset the weight of many heavy pro lenses.
D7000

8.0
6.0
That said, when weighing these up against a superb level of image quality when shooting in most conditions, great handling, good build quality, industry-leading EVF, quick full-time phase detection AF system and a comprehensive set of exposure modes, we have little trouble with recommending this excellent camera.
SLT A77

Overall

8.6 Out of 10
8.2 Out of 10

Specifications Full list of technical specs

sensor

SLT A77  vs
D7000 
Type CMOS CMOS
Megapixels 24 MP 16.1 MP
Resolution 6000 x 4000 4928 x 3262
Size APS-C APS-C
Area 23.5 x 15.6 mm 23.6 x 15.6 mm
Crop factor 1.5x 1.5x
Pixel size 15.3 microns 22.9 microns
Light sensitivity 100 ISO to 16,000 ISO 100 ISO to 6,400 ISO
Light sensitivity (Boost) 50 ISO to 25,600 ISO 6,400 ISO to 25,600 ISO
Codecs
RAW
JPEG
Self cleaning sensor Yes Yes
Tested vertical resolution 2,400 LPH 2,000 LPH
Tested horizontal resolution 2,400 LPH 2,000 LPH

focus system

Type Phase detection Phase detection
Focus points 19 39
Cross type focus points 11 9
Supports continuous No No

shutter

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

form factor

Size 143 x 104 x 81 mm 132 x 105 x 77 mm
Thickness 81 mm 77 mm
Weight 732 g 780 g
Is weather sealed Yes Yes

features

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

video

SLT A77  vs
D7000 
Video 1920 x 1080 @ 60 fps 1920 x 1080 @ 24 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 Contrast detection
Autofocus type Phase detection Contrast detection
Autofocus supports continuous Yes Yes

display

Type LCD LCD
Size 3" 3"
Resolution 921 k dots 920 k dots
Has a touch screen No No
Has a flip out screen Yes No
Supports live view Yes Yes

viewfinder

Viewfinder mirror Translucent Opaque
Viewfinder Yes Yes
Type Electronic Pentaprism
Coverage 100% 100%
Magnification 1.1x 0.94x
Viewfinder size 0.72x 0.62x

performance

Max continuous shooting 12 fps 6 fps
Battery life 530 1,050
Continuous shooting
12 fps, JPEG
6 fps, JPEG
Focus lag 124 ms 238 ms
Shutter lag 54 ms 53 ms
Startup delay 3,100 ms 400 ms
Sony SLT A77
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Nikon D7000
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