Sony NEX-3 vs Sony a850

This is a full comparison between the cameras Sony NEX-3 and Sony a850. We compare them by looking at the categories you see below.

Manufacturing

These cameras are both manufactured by Sony.

Sony NEX-3 were released 2010 and Sony a850 was released 2009. That is a 1 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Sony NEX-3 2010
Sony a850 2009

Type of camera

Sony NEX-3 is a Mirrorless camera while Sony a850 is a DSLR camera. More information about their differences will come soon.

Sensors / crop factor

These cameras have different sensors. Sony NEX-3 has a "Sony APS-C"-sensor while Sony a850 has a "Sony Full Frame"-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 NEX-3 75 mm
Sony APS-C sensor
Crop factor/focal length multiplier by * 1.5
Sony a850 50 mm
Full-frame sensor
No crop factor/focal length multiplier

** 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)

Resolution

Sony NEX-3 has a 14 MP (Megapixels) resolution while Sony a850 has 25 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Sony NEX-3 14 MP
14033152 pixels
4592 x 3056
Sony a850 25 MP
24385536 pixels
6048 x 4032

Sony a850 has a 74 % larger resolution than Sony NEX-3. 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

Sony NEX-3 has a larger ISO-range than Sony a850. Sony NEX-3 has an ISO range that stretches from 200 to 12800 while Sony a850 has 200 to 3200.

Camera ISO Range
Sony NEX-3 200-12800
Sony a850 200-3200

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that support autofocus, do not have an autofocus motor of their own but this won't cause any problems with these two cameras.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Sony NEX-3
Lens compatibility chart for Sony a850

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony NEX-3 can shoot up to 7 pictures per seconds and Sony a850 can shoot up to 3 pictures per seconds.

Camera FPS (Frames per second)
Sony NEX-3 7
Sony a850 3

Ability to record movies

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

When comparing these two cameras there is only one of them that can shoot movies and that is Sony NEX-3. Unfortunately Sony a850 does not support recording movies and movie clips.

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 a850 weighs 895 gr (equal to 1.97 lb) which is 201% heavier than Sony NEX-3 and its 297 gr (or 0.65 lb).

Camera Weight
Sony NEX-3 297 gr
0.65 lb
Sony a850 895 gr
1.97 lb

Sony NEX-3 vs Sony a850 Specs

Below you will find the complete and detailed technical specs for both Sony NEX-3 and Sony a850, 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 NEX-3
Sony a850
Name Sony NEX-3 Sony a850
Manufacturer Sony Sony
Release Date and Price
Sony NEX-3
Sony a850
Release Year 2010 2009
Release Date 2010-05-11 2009-08-27
MSRP 599 USD 1999 USD
Buy it today
Camera Type
Sony NEX-3
Sony a850
Camera Type Mirrorless DSLR
Sensor
Sony NEX-3
Sony a850
Sensor Size APS-C (approx 23.5 x 15.6 mm) Full Frame (approx 36 x 24 mm)
Sensor Type CMOS CMOS
Resolution 4592 x 3056 pixels 6048 x 4032 pixels
Megapixels 14 MP 25 MP
Image Processor Bionz Bionz
Image
Sony NEX-3
Sony a850
ISO Range 200 - 12800 200 - 3200
White Balance Presets 6 7
Custom White Balance Yes Yes
Image Stabilization No Yes
(Sensor-Shift)
Image Stabilization CIPA Rating 0 stops 0 stops
Uncompressed format RAW RAW
Optics & Focus
Sony NEX-3
Sony a850
Autofocus Motor Yes Yes
Autofocus Contract Detect (sensor)
Multi Area
Selective Single Point
Single
Continuous
LiveView
Phase Detect
Multi Area
Selective Single Point
Single
Continuous
Focus Points 25 9
Lens Mount Sony E

See Compatible Lenses
Sony A

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
Full frame
No multiplier
Example:
24 mm remains 24 mm
50 mm remains 50 mm
100 mm remains 100 mm
200 mm remains 200 mm
Screen & Viewfinder
Sony NEX-3
Sony a850
Articulated LCD Tilting Fixed
Screen size 3” 3”
Screen dots 920000 921600
Touch screen No No
Screen type TFT Xtra Fine LCD TFT Xtra Fine color LCD
Live view Yes No
Viewfinder Type No Viewfinder Optical (pentaprism)
Viewfinder Coverage 98%
Viewfinder Magnification 0.74×
Viewfinder Resolution N/A N/A
Photography features
Sony NEX-3
Sony a850
Frames per second 7 fps 3 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/4000 seconds 1/8000 seconds
Built-in Flash No No
Built-in Flash Range N/A N/A
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse No No
Metering modes Multi
Center Weighted
Spot
Multi
Center Weighted
Spot
Exposure Compensation +/- 2 (at 1/3 EV steps) +/- 3 (at 1/3 EV steps)
Videography features
Sony NEX-3
Sony a850
Video recording Yes No
Video format MPEG4
N/A
Video resolution 1280 x 720
N/A
Built-in Microphone Yes No
Built-in Speakers No No
Storage
Sony NEX-3
Sony a850
Memory Card Memory Stick Pro Duo
SD/SDHC
Compact Flash
Memory Stick Pro Duo
Connectivity
Sony NEX-3
Sony a850
HDMI Output Yes Yes
Microphone Port No No
Headphone Port No No
Wireless Yes
Eye-Fi Connected
No
Remote Control No Yes (Wired or Wireless (Optional))
GPS No No
Body & Dimensions
Sony NEX-3
Sony a850
Enviromentally sealed No No
Battery Battery Pack Battery Pack
Battery Details Lithium-Ion NP-FW50 rechargeable battery & charger
Lithium-Ion NP-FM500H rechargeable battery & charger
Battery Life (CIPA) 330 shots 880 shots
Width 117 mm 156 mm
Height 62 mm 117 mm
Depth 33 mm 82 mm
Weight 297 gram 895 gram