Sony a100 vs Nikon D40x

This is a full comparison between the cameras Sony a100 and Nikon D40x. We compare them by looking at the categories you see below.

Manufacturing

Sony a100 is manufacturered by Sony but Nikon D40x is from Nikon. Both Sony and Nikon are well known brands though.

Sony a100 were released 2006 and Nikon D40x was released 2007. That is a 1 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Sony a100 2006
Nikon D40x 2007

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Sony a100 has a "Sony APS-C"-sensor while Nikon D40x 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 a100 75 mm
Sony APS-C sensor
Crop factor/focal length multiplier by * 1.5
Nikon D40x 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

Both these cameras have the exact same resolution. Sony a100 has a 10 MP (Megapixels) resolution while Nikon D40x has 10 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Sony a100 10 MP
10036224 pixels
3872 x 2592
Nikon D40x 10 MP
10036224 pixels
3872 x 2592

ISO range

Nikon D40x has a larger ISO-range than Sony a100. Nikon D40x has an ISO range that stretches from 100 to 3200 while Sony a100 has 100 to 1600.

Camera ISO Range
Sony a100 100-1600
Nikon D40x 100-3200

Autofocus and lens compatibility

There is a big difference between these two cameras. Sony a100 has a built-in autofocus motor but Nikon D40x does not. If you want to be able to use autofocus on Nikon D40x 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 a100
Lens compatibility chart for Nikon D40x

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a100 can shoot up to 3 pictures per seconds and Nikon D40x can shoot up to 3 pictures per seconds.

Camera FPS (Frames per second)
Sony a100 3
Nikon D40x 3

Ability to record movies

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

Though, neither Sony a100 or Nikon D40x can shoot movies so if that is a functionality that you are really looking for you should look elsewhere.

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 a100 weighs 638 gr (equal to 1.41 lb) which is 22% heavier than Nikon D40x and its 522 gr (or 1.15 lb).

Camera Weight
Sony a100 638 gr
1.41 lb
Nikon D40x 522 gr
1.15 lb

Sony a100 vs Nikon D40x Specs

Below you will find the complete and detailed technical specs for both Sony a100 and Nikon D40x, 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 a100
Nikon D40x
Name Sony a100 Nikon D40x
Manufacturer Sony Nikon
Release Date and Price
Sony a100
Nikon D40x
Release Year 2006 2007
Release Date 2006-06-05 2007-03-06
MSRP 899 USD 729 USD
Buy it today
Camera Type
Sony a100
Nikon D40x
Camera Type DSLR DSLR
Sensor
Sony a100
Nikon D40x
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 CCD CCD
Resolution 3872 x 2592 pixels 3872 x 2592 pixels
Megapixels 10 MP 10 MP
Image Processor Bionz EXPEED
Image
Sony a100
Nikon D40x
ISO Range 100 - 1600 100 - 3200
White Balance Presets 7 6
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 a100
Nikon D40x
Autofocus Motor Yes No
Autofocus Phase Detect
Multi Area
Selective Single Point
Single
Continuous
Phase Detect
Multi Area
Selective Single Point
Single
Continuous
Focus Points 9 3
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 a100
Nikon D40x
Articulated LCD No Fixed
Screen size 2.5” 2,5”
Screen dots 230000 230000
Touch screen No No
Screen type N/A N/A
Live view No No
Viewfinder Type Optical (pentamirror) Optical (pentamirror)
Viewfinder Coverage 95% 95%
Viewfinder Magnification 0.83× (0.55× 35mm equiv.) 0.8× (0.53× 35mm equiv.)
Viewfinder Resolution N/A N/A
Photography features
Sony a100
Nikon D40x
Frames per second 3 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 N/A 17 meters
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse No Yes
Metering modes Multi
Center Weighted
Spot
Multi
Center Weighted
Spot
Exposure Compensation +/- 2 (at 1/3 EV steps) +/- 5 (at 1/3 EV steps)
Videography features
Sony a100
Nikon D40x
Video recording No No
Video format N/A N/A
Video resolution N/A N/A
Built-in Microphone No No
Built-in Speakers No No
Storage
Sony a100
Nikon D40x
Memory Card Compact Flash
SD/SDHC
Connectivity
Sony a100
Nikon D40x
HDMI Output No No
Microphone Port No No
Headphone Port No No
Wireless No No
Remote Control Yes (Wire (Optional)) Yes (Optional (ML-L3))
GPS No No
Body & Dimensions
Sony a100
Nikon D40x
Enviromentally sealed No No
Battery Battery Pack Battery Pack
Battery Details Lithium-Ion (NP-FM55H) & charger
Nikon EN-EL9 Lithium-Ion & charger included
Battery Life (CIPA) 750 shots 520 shots
Width 133 mm 124 mm
Height 95 mm 94 mm
Depth 71 mm 64 mm
Weight 638 gram 522 gram