57points

Nikon D3100

82points

Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

Nikon D3100
Comparison winner
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
vs
vs

71 facts in comparison

Nikon D3100 vs Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM
57
points
82
points

Why is Nikon D3100 better than Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM?

  • 37g lighter
    455gvs492g
  • Has AF tracking
  • Has an optical viewfinder
  • Has a 24p cinema mode
  • 8.72% less body volume
    880.1cm³vs969.3745600000002cm³
  • 219.72s less shutter lag
    0.28svs220s
  • 0.5s less startup delay
    0.4svs0.9s
  • 20% faster flash X-sync
    1/200svs0.00625s

Why is Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM better than Nikon D3100?

  • 9.46% more megapixels (main camera)
    16.2MPvs14.8MP
  • 3.05% larger sensor
    23.5 x 15.6mmvs23.1 x 15.4mm
  • 4 more focus points
    15vs11
  • Has a flip-out screen
  • 3.33x faster shooting at highest resolution with AF as JPEG format
    10fpsvs3fps
  • 2.5x better video recording quality (main camera)
    1080 x 60fpsvs1080 x 24fps
  • 6 better image quality
    73vs67
  • Has WiFi

Top specs and features

Design

1.resolution

588 x 392px

1176 x 784px

Best

Panasonic Lumix DC-TS7

5184 x 3888px

2.has a flip-out screen
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

Flip-out screens are useful for doing tricky shots.

3.Weather sealed
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

Device is protected with extra seals to prevent failures due to any kind of weather.

For example

Fujifilm X-T3

4.has an optical viewfinder
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

An optical viewfinder (or OVF) allows the photographer to compose a shot while seeing exactly what the lens sees. There is no time lag and they require no power - as opposed to electronic viewfinders which can drain battery life. They are also better in low light situations.

5. more viewfinder coverage

95%

100%

With 100% coverage you can compose the image correctly when you capture the photo. With less than full coverage you may have to crop your photos afterwards to get them looking perfect.

Best

Leica Q-P

100%

6.Has a built-in focus motor
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

The focus motor moves the lens in order to autofocus. For system cameras, having a focus motor in the camera's body allows you to use a wide range of lenses, including lenses which do not have their own focus motor. For compact cameras, a focus motor is usually built-in.

Optics

1.sensor size

23.1 x 15.4mm

23.5 x 15.6mm

The larger the sensor the more light the sensor captures yielding in better image quality.

Best

Polaroid Snap

81.2 x 25.4mm

2.focus points

11

15

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.

Best

Canon EOS R

5655

3.has AF tracking
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

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.

4.maximum light sensitivity

12800 ISO

12800 ISO

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.

Best

Nikon D7500 + Nikon AF-S DX Nikkor 18-140mm f/3.5-5.6G ED VR

1640000 ISO

5.megapixels

14.8MP

16.2MP

Best

Panono Camera

108MP

6.has built-in optical image stabilization
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

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.

For example

Leica D-Lux 7

Videography

1.video recording (main camera)

1080 x 24fps

1080 x 60fps

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.

Best

Fujifilm X-T3

2160 x 60fps

2.Has phase detection autofocus for videos
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

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.

3.has continuous autofocus when recording movies
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

When recording movies they stay focussed and sharp.

4.supports AVCHD format
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

AVCHD (Advanced Video Coding High Definition) is a file-based format for the digital recording and playback of high-definition video. It's a standard popular among professional cameras and camcorders.

5.has a 24p cinema mode
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

24p is a video format (24 frames per second) traditionally used in cinema. Nowadays, it is used to create film-like motion characteristics.

Audio

1.has a stereo microphone
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

A stereo microphone allows to record audio files or movies in stereo without an external microphone.

2.has a microphone in
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

A microphone port allows connecting external high-end or specialized microphones.

Battery

1. longer battery life

550shots

330shots

CIPA is an independent, standard measurement that determines how many shots a camera can take before the battery dies.

Best

Nikon D3x

4400shots

2.battery power

1000mAh

1080mAh

Best

Samsung Galaxy NX Mirrorless + 18-55mm f/3.5-5.6

4360mAh

3.has a removable battery
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

The battery is removable and can be replaced by the user if broken.

4.has a rechargeable battery
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

The battery can be recharged and used over again.

5.has a battery level indicator
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

An indicator shows you when the device has low battery.

Features

1.image quality

67

73

A device's overall image quality score considers: color depth, dynamic range and low light performance. Source: DxOMark.

Best

Nikon D850

100

2.color depth

22.5bits

23bits

The better a device's color depth the more color nuances it can distinguish. Source: DxOMark.

Best

HP Photosmart R927

42bits

3.dynamic range

11.3Evs

12.4Evs

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.

Best

Nikon D810A

14.8Evs

4.Has WiFi
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

The device can connect to WiFi.

5.has an external memory slot
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

The device has a standard memory slot (such as an SD or micro SD card slot) so that you can either extend the internal storage with affordable memory modules or you can retrieve data, such as photographs, easily from a memory card.

6.can be controlled remotely
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

A remote control allows you to control the device remotely. The remote control can be included or optional.

Miscellaneous

1.has 3D photo/video recording capabilities
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

The device captures 3D still photos and/or 3D videos due to two separate lenses.

2.Has focus motor
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

Lenses with a built-in focus motor can autofocus even if the camera does not have its own focus motor.

3.Has rounded aperture blades
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

Similar to the number of aperture blades, rounded blades affect the way the light gets through to the sensor. Rounded blades, often only found on more expensive lenses, improve the appearance of the out-of-focus areas. This allows you to attain better, softer looking bokeh in your photos.

4.Is a normal lens
Nikon D3100
Sony SLT-A55 + Sony DT 18-55mm/ F3.5-5.6 SAM

A normal lens is one that doesn't fall into another category such as wide angle or telephoto, and typically has a focal length between 35mm and 70mm. These lenses aren't tailored towards a specific type of photography, and so are quite versatile.

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