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Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
Top 10%2,220 points
Top 10%
Top 7%2,272 points
Top 7%
Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
Top specs and features

Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX vs Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM: 93 facts in comparison

1. megapixels

1.53x more megapixels (main camera).
24.71MP
Panono Camera: 108MP
16.2MP

2. sensor size

The larger the sensor the more light the sensor captures yielding in better image quality.
23.5 x 15.6mm
Polaroid Snap: 81.2 x 25.4mm
23.5 x 15.6mm

3. focus points

The more focus points the more flexibility in picking which part of the scene to focus on. They also give the image sensor a better probability in identifying the right area of the scene to focus on in more automatic modes.
51
Sony Alpha a7 III: 693
15

4. continuous shooting at high resolution

Fast continuous shooting is useful for catching action shots.
6fps
Olympus OM-D E-M1 Mark II: 60fps
10fps

5. has a flip-out screen

Flip-out screens are useful for doing tricky shots.
Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
28% have it

6. maximum light sensitivity

With a higher light sensitivity (ISO level), the sensor absorbs more light. This can be used to capture moving objects using a fast shutter speed, or to take images in low light without using a flash.
25600 ISO
Nikon D7500 + Nikon AF-S DX Nikkor 18-140mm f/3.5-5.6G ED VR: 1640000 ISO
12800 ISO

7. image quality

A device's overall image quality score considers: color depth, dynamic range and low light performance. Source: DxOMark.
83
Sony Alpha 7R II: 98
73

8. longer battery life

CIPA is an independent, standard measurement that determines how many shots a camera can take before the battery dies.
950shots
Nikon D3x: 4400shots
330shots

9. video recording (main camera)

The maximum resolution available for videos shot with the main camera. Although it may be possible to choose among other frame rates, those recordings usually have lower resolutions.
1080 x 60fps
Canon EOS 1D X Mark II: 2160 x 60fps
1080 x 60fps

10. weight

72g lighter.
420g(Nikon AF-S DX Nikkor 18-105mm f/3.5-5.6G ED VR)
HTC Re: 65.5g
492g

11. Has WiFi

The device can connect to WiFi.
Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
38% have it

12. color depth

The better a device's color depth the more color nuances it can distinguish. Source: DxOMark.
24.2bits
HP Photosmart R927: 42bits
23bits

13. fastest shutter speed

A faster maximum shutter speed allows taking pictures of fast moving subjects without blur.
1/8000s
Sony Cyber-shot DSC-RX100 IV: 1/32000s
1/4000s

14. has a stereo microphone

A stereo microphone allows to record audio files or movies in stereo without an external microphone.
Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
50% have it

15. Has phase detection autofocus for videos

A phase detection autofocus system is faster than a contrast detection autofocus system. Even when recording scenes with a lot of fast movements, the videos are sharp and clear.
Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
12% have it

16. Has phase detection autofocus for photos

A phase detection autofocus is much faster than a contrast detection autofocus, allowing for sharper images.
Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
31% have it

17. dynamic range

The better the dynamic range the system captures a wider number of values from dark to light leading to more details in low and highlights. Source: DxOMark.
13.7Evs
Nikon D810A: 14.8Evs
12.4Evs

18. pixel density

6.16% higher pixel density.
500ppi
Panasonic Lumix DC-TS7: 2160ppi
471ppi

19. has built-in optical image stabilization

Optical image stabilization uses gyroscopic sensors to detect the vibrations of the camera. The lens adjusts the optical path accordingly, ensuring that any type of motion blur is corrected before the sensor captures the image.
Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX(Nikon AF-S DX Nikkor 18-105mm f/3.5-5.6G ED VR)
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
46% have it

20. has AF tracking

With AF tracking, once you choose the subject and press the shutter release part way down, as the subject moves, the autofocus will follow it. No more out of focus shots.
Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
72% have it

21. resolution

33.28% higher resolution.
1280 x 960px
Panasonic Lumix DC-TS7: 5184 x 3888px
1176 x 784px

22. Has timelapse function

A timelapse shows a long passage of time sped up. A series of photographs taken from the same position over a long period is joined together to create a short video. It is great way to capture things like the setting sun, or clouds moving across the sky.
Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
15% have it

23. has a microphone in

A microphone port allows connecting external high-end or specialized microphones.
Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
25% have it

24. has a built-in HDR mode

It can automatically shoot pictures with a higher dynamic range (HDR).
Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
27% have it

25. has a 24p cinema mode

24p is a video format (24 frames per second) traditionally used in cinema. Nowadays, it is used to create film-like motion characteristics.
Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
26% have it

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