Sony a450 vs Nikon D3100

This is a full comparison between the cameras Sony a450 and Nikon D3100. We compare them by looking at the categories you see below.

Manufacturing

Sony a450 is manufacturered by Sony but Nikon D3100 is from Nikon. Both Sony and Nikon are well known brands though.

These two camera models were both released 2010.

Camera Released
Sony a450 2010
Nikon D3100 2010

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Sony a450 has a "Sony APS-C"-sensor while Nikon D3100 has a "Nikon DX"-sensor, and their difference in sensors will also affect the crop factor and experience focal length. See the table below.

Camera Focal length, 50mm f/1.8 **
Sony a450 75 mm
Sony APS-C sensor
Crop factor/focal length multiplier by * 1.5
Nikon D3100 75 mm
Nikon DX sensor
Crop factor/focal length multiplier by * 1.5

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Sony)
Camera selection can affect the focal length (Nikon)

Resolution

Sony a450 has a 14 MP (Megapixels) resolution while Nikon D3100 has 14,2 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Sony a450 14 MP
14033152 pixels
4592 x 3056
Nikon D3100 14,2 MP
14155776 pixels
4608 x 3072

Nikon D3100 has a 1 % larger resolution than Sony a450. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Nikon D3100 has a larger ISO-range than Sony a450. Nikon D3100 has an ISO range that stretches from 100 to 12800 while Sony a450 has 200 to 12800.

Camera ISO Range
Sony a450 200-12800
Nikon D3100 100-12800

Autofocus and lens compatibility

There is a big difference between these two cameras. Sony a450 has a built-in autofocus motor but Nikon D3100 does not. If you want to be able to use autofocus on Nikon D3100 there is a need for having an autofocus motor inside the lens. We really encourage you to look closely at our lens compatibility charts at the links below.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Sony a450
Lens compatibility chart for Nikon D3100

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a450 can shoot up to 7 pictures per seconds and Nikon D3100 can shoot up to 3 pictures per seconds.

Camera FPS (Frames per second)
Sony a450 7
Nikon D3100 3

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

It is only one of these two cameras that support recording movies and movie clips and that is Nikon D3100. Sadly, the Sony a450 does not support this.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Sony a450 weighs 560 gr (equal to 1.23 lb) which is 11% heavier than Nikon D3100 and its 505 gr (or 1.11 lb).

Camera Weight
Sony a450 560 gr
1.23 lb
Nikon D3100 505 gr
1.11 lb

Sony a450 vs Nikon D3100 Specs

Below you will find the complete and detailed technical specs for both Sony a450 and Nikon D3100, next to each other. Each category of data is a link to an article covering the subject, giving you a deeper understanding so you can better understand the strengths and weaknesses of the two camera models.

Product
Sony a450
Nikon D3100
Name Sony a450 Nikon D3100
Manufacturer Sony Nikon
Release Date and Price
Sony a450
Nikon D3100
Release Year 2010 2010
Release Date 2010-01-05 2010-08-19
MSRP N/A 699 USD
Buy it today
Camera Type
Sony a450
Nikon D3100
Camera Type DSLR DSLR
Sensor
Sony a450
Nikon D3100
Sensor Size APS-C (approx 23.5 x 15.6 mm) APS-C (approx 23.7 x 15.5 mm)
Also known as "DX"
Sensor Type CMOS CMOS
Resolution 4592 x 3056 pixels 4608 x 3072 pixels
Megapixels 14 MP 14,2 MP
Image Processor Bionz EXPEED 2
Image
Sony a450
Nikon D3100
ISO Range 200 - 12800 100 - 12800
White Balance Presets 6 12
Custom White Balance Yes Yes
Image Stabilization Yes
(Sensor-Shift)
No
Image Stabilization CIPA Rating 0 stops 0 stops
Uncompressed format RAW RAW
Optics & Focus
Sony a450
Nikon D3100
Autofocus Motor Yes No
Autofocus Phase Detect
Multi Area
Center
Selective Single Point
Single
Continuous
Contract Detect (sensor)
Phase Detect
Multi Area
Selective Single Point
Tracking
Single
Continuous
Face Detection
LiveView
Focus Points 9 11
Lens Mount Sony A

See Compatible Lenses
Nikon F

See Compatible Lenses
Focal Length Multiplier APS-C Sensor (1.5x)
1.5x multiplier
Example:
24 mm becomes 36 mm
50 mm becomes 75 mm
100 mm becomes 150 mm
200 mm becomes 300 mm
DX / APS-C (1.5x)
1.5x multiplier
Example:
24 mm becomes 36 mm
50 mm becomes 75 mm
100 mm becomes 150 mm
200 mm becomes 300 mm
Screen & Viewfinder
Sony a450
Nikon D3100
Articulated LCD Fixed Fixed
Screen size 2.7” 3”
Screen dots 230400 230000
Touch screen No No
Screen type TFT Clear Photo Color LCD TFT LCD monitor
Live view Yes Yes
Viewfinder Type Optical (pentamirror) Optical (pentamirror)
Viewfinder Coverage 95% 95%
Viewfinder Magnification 0.8× (0.53× 35mm equiv.) 0.8× (0.53× 35mm equiv.)
Viewfinder Resolution N/A N/A
Photography features
Sony a450
Nikon D3100
Frames per second 7 fps 3 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/4000 seconds 1/4000 seconds
Built-in Flash Yes Yes
Built-in Flash Range 12 meters 12 meters
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse No No
Metering modes Multi
Center Weighted
Spot
Multi
Center Weighted
Average
Exposure Compensation +/- 2 (at 1/3 EV steps) +/- 5 (at 1/3 EV steps)
Videography features
Sony a450
Nikon D3100
Video recording No Yes
Video format N/A MPEG4
Video resolution N/A 1280 x 720
1920 x 1080
Built-in Microphone No Yes
Built-in Speakers No No
Storage
Sony a450
Nikon D3100
Memory Card Memory Stick Pro Duo
SD/SDHC
SD/SDHC
Connectivity
Sony a450
Nikon D3100
HDMI Output Yes Yes
Microphone Port No No
Headphone Port No No
Wireless No Yes
Eye-Fi Connected
Remote Control Yes (Wired or wirelss (optional)) Optional
GPS No Yes
Optional
Body & Dimensions
Sony a450
Nikon D3100
Enviromentally sealed No No
Battery Battery Pack Battery Pack
Battery Details Lithium-Ion NP-FM500H rechargeable battery & charger
Lithium-Ion EN-EL14 rechargeable battery & charger
Battery Life (CIPA) 1050 shots N/A
Width 137 mm 124 mm
Height 104 mm 96 mm
Depth 81 mm 75 mm
Weight 560 gram 505 gram