Camera Rocket Review Our evaluation of D7100 vs D3100

Image Quality

RAW image quality independent of lens

D7100
9.8
D3100
8.8
DxOMark Low light, DxOMark Color depth and DxOMark Dynamic range

Focusing

How fast and easily does the camera nail focus

D7100
8.1
D3100
6.5
Focus lag, cross type focus points and focus points

Responsiveness

How much delay is there between you and your photo?

D7100
8.6
D3100
8.3
Focus lag, continuous shooting and Startup delay

Reviews

What do the experts think?

D7100
9.2
D3100
9.2
Reviews from nikonrumors.com, 1001noisycameras.com, techradar.com, imaging-resource.com and 5 more

No winner declared

Too close to call

Benchmarks Real world tests of D7100 vs D3100

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

D7100
1,256 ISO
D3100
919 ISO

Resolution Results from photos of standard resolution charts

D7100
3,000 LPH
D3100
2,400 LPH

Focus lag Delay between fully pressing shutter to image capture

D7100
251 ms
D3100
279 ms

Shutter lag Delay to take a photo when prefocused

D7100
54 ms
D3100
117 ms

Startup delay Delay from power on to first photo

D7100
300 ms
D3100
400 ms

Continuous shooting Delay between fully pressing shutter to image capture

D7100
6 fps
D3100
3 fps

Features Key features of the D7100  vs D3100 

Megapixels Maximum resolution images are captured at

D7100
24 MP
D3100
14.2 MP

Max ISO Maximum light sensitivity of the sensor

D7100
25,600 ISO
D3100
12,800 ISO

Focus points How many different points the camera can focus on

D7100
51
D3100
11

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

D7100
3.2"
D3100
3"

Viewfinder size Large viewfinders are brighter and more comfortable to use

D7100
0.61x
D3100
0.51x

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

D7100
15.3 microns
D3100
25.1 microns

Reviews Word on the street

D7100  vs D3100 

8.5
7.2
And the D7100 one-ups its Nikon stablemates with an RGBW rear LCD which offers more efficient operation and gives the option for greater brightness than an RGB panel, making the screen much more usable in direct sunlight.
D7100

9.0
9.0
The Nikon D7100 lets you dial in shutter speeds of up to 30 seconds and has a Bulb mode as well for exposure times of practically any length, which is very good news if you are seriously interested in night photography.
D7100

7.8
7.4
The D7100 is a great camera for still photography, but doesn't feel like a must-have upgrade unless you've got a significant investment in good Nikon-mount lenses and need speed and durability on a budget - right now.
D7100

8.0
9.0
Even so, the LCD looks fairly accurate in terms of brightness, contrast and colour balance, and that's what is most important.
D3100

Overall

8.5 Out of 10
8.5 Out of 10

Specifications Full list of technical specs

sensor

D7100  vs
D3100 
Type CMOS CMOS
Megapixels 24 MP 14.2 MP
Resolution 6000 x 4000 4608 x 3072
Size APS-C APS-C
Area 23.5 x 15.6 mm 23.1 x 15.4 mm
Crop factor 1.5x 1.6x
Pixel size 15.3 microns 25.1 microns
Light sensitivity 100 ISO to 6,400 ISO 100 ISO to 3,200 ISO
Light sensitivity (Boost) 6,400 ISO to 25,600 ISO 3,200 ISO to 12,800 ISO
Codecs
RAW
JPEG
Self cleaning sensor Yes Yes
Tested vertical resolution 3,000 LPH 2,400 LPH
Tested horizontal resolution 3,000 LPH 2,400 LPH

focus system

Type Phase detection Phase detection
Focus points 51 11
Cross type focus points 15 1
Supports continuous Yes No

shutter

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

form factor

Size 136 x 107 x 76 mm 124.5 x 96.5 x 73.7 mm
Thickness 76 mm 73.7 mm
Weight 675 g 505 g
Is weather sealed Yes No

features

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

video

D7100  vs
D3100 
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 None
Autofocus while shooting video Contrast detection Contrast detection
Autofocus type Contrast detection Contrast detection

display

Type LCD LCD
Size 3.2" 3"
Resolution 1,229 k dots 230 k dots
Has a touch screen No No
Has a flip out screen No No
Supports live view Yes Yes

viewfinder

Viewfinder mirror Opaque Opaque
Viewfinder Yes Yes
Type Pentaprism Pentamirror
Coverage 100% 95%
Magnification 0.94x 0.8x
Viewfinder size 0.61x 0.51x

performance

Max continuous shooting 6 fps 3 fps
Battery life 950 550
Continuous shooting
3 fps, JPEG
6 fps
Focus lag 251 ms 279 ms
Shutter lag 54 ms 117 ms
Startup delay 300 ms 400 ms
Nikon D7100
Report a correction
Nikon D3100
Report a correction

Read more

Comments

comments powered by Disqus