Nikon D40x vs Nikon D7100

This is a full comparison between the cameras Nikon D40x and Nikon D7100. We compare them by looking at the categories you see below.

Manufacturing

These cameras are both manufactured by Nikon.

Nikon D40x were released 2007 and Nikon D7100 was released 2013. That is a 6 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Nikon D40x 2007
Nikon D7100 2013

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

Both these cameras have the same sorts of sensor (called "Nikon DX") which means that if you compare these cameras side by side the lenses will also have the same experienced focal length. Neither of the cameras has a Full frame sensor which means that you will get a "crop factor" where the camera's sensor size affect the focal length with a multiplier.

Camera Focal length, 50mm f/1.8 **
Nikon D40x 75 mm
Nikon DX sensor
Crop factor/focal length multiplier by * 1.5
Nikon D7100 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 (Nikon)

Resolution

Nikon D40x has a 10 MP (Megapixels) resolution while Nikon D7100 has 24,1 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Nikon D40x 10 MP
10036224 pixels
3872 x 2592
Nikon D7100 24,1 MP
24000000 pixels
6000 x 4000

Nikon D7100 has a 139 % larger resolution than Nikon D40x. 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 D7100 has a larger ISO-range than Nikon D40x. Nikon D7100 has an ISO range that stretches from 100 to 6400 while Nikon D40x has 100 to 3200.

Camera ISO Range
Nikon D40x 100-3200
Nikon D7100 100-6400

Autofocus and lens compatibility

There is a big difference between these two cameras. Nikon D7100 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 Nikon D40x
Lens compatibility chart for Nikon D7100

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Nikon D40x can shoot up to 3 pictures per seconds and Nikon D7100 can shoot up to 6 pictures per seconds.

Camera FPS (Frames per second)
Nikon D40x 3
Nikon D7100 6

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 D7100. Sadly, the Nikon D40x 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.

Nikon D7100 weighs 675 gr (equal to 1.49 lb) which is 29% heavier than Nikon D40x and its 522 gr (or 1.15 lb).

Camera Weight
Nikon D40x 522 gr
1.15 lb
Nikon D7100 675 gr
1.49 lb

Nikon D40x vs Nikon D7100 Specs

Below you will find the complete and detailed technical specs for both Nikon D40x and Nikon D7100, 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
Nikon D40x
Nikon D7100
Name Nikon D40x Nikon D7100
Manufacturer Nikon Nikon
Release Date and Price
Nikon D40x
Nikon D7100
Release Year 2007 2013
Release Date 2007-03-06 2013-02-21
MSRP 729 USD 1199 USD
Buy it today
Camera Type
Nikon D40x
Nikon D7100
Camera Type DSLR DSLR
Sensor
Nikon D40x
Nikon D7100
Sensor Size APS-C (approx 23.7 x 15.5 mm)
Also known as "DX"
APS-C (approx 23.7 x 15.5 mm)
Also known as "DX"
Sensor Type CCD CMOS
Resolution 3872 x 2592 pixels 6000 x 4000 pixels
Megapixels 10 MP 24,1 MP
Image Processor EXPEED EXPEED 3
Image
Nikon D40x
Nikon D7100
ISO Range 100 - 3200 100 - 6400
White Balance Presets 6 12
Custom White Balance Yes Yes
Image Stabilization No No
Image Stabilization CIPA Rating 0 stops 0 stops
Uncompressed format RAW RAW
Optics & Focus
Nikon D40x
Nikon D7100
Autofocus Motor No Yes
Autofocus Phase Detect
Multi Area
Selective Single Point
Single
Continuous
Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Face Detection
LiveView
Focus Points 3 51
Lens Mount Nikon F

See Compatible Lenses
Nikon F

See Compatible Lenses
Focal Length Multiplier 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
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
Nikon D40x
Nikon D7100
Articulated LCD Fixed Fixed
Screen size 2,5” 3,2”
Screen dots 230000 1228800
Touch screen No No
Screen type N/A Wide Viewing Angle TFT-LCD monitor
Live view No Yes
Viewfinder Type Optical (pentamirror) Optical (pentaprism)
Viewfinder Coverage 95% 100%
Viewfinder Magnification 0.8× (0.53× 35mm equiv.) 0.94×
Viewfinder Resolution N/A N/A
Photography features
Nikon D40x
Nikon D7100
Frames per second 3 fps 6 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/4000 seconds 1/8000 seconds
Built-in Flash Yes Yes
Built-in Flash Range 17 meters 12 meters
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse Yes Yes
Metering modes Multi
Center Weighted
Spot
Multi
Center Weighted
Spot
Average
Exposure Compensation +/- 5 (at 1/3 EV steps) +/- 5 (at 1/3 EV, 1/2 EV steps)
Videography features
Nikon D40x
Nikon D7100
Video recording No Yes
Video format N/A MPEG4
H.264
Video resolution N/A 1280 x 720
1920 x 1080
Built-in Microphone No Yes
Built-in Speakers No Yes
Storage
Nikon D40x
Nikon D7100
Memory Card SD/SDHC
SD/SDHC
Connectivity
Nikon D40x
Nikon D7100
HDMI Output No Yes
Microphone Port No Yes
Headphone Port No Yes
Wireless No Yes
Wireless WR-1 and WR-R10
Remote Control Yes (Optional (ML-L3))
Yes (Optional, wired MC-DC2 or wireless WR-1 and WR-R10 )
GPS No Yes
Optional
Body & Dimensions
Nikon D40x
Nikon D7100
Enviromentally sealed No Yes
Battery Battery Pack Battery Pack
Battery Details Nikon EN-EL9 Lithium-Ion & charger included
Lithium-Ion EN-EL15 rechargeable battery & charger
Battery Life (CIPA) 520 shots 950 shots
Width 124 mm 136 mm
Height 94 mm 107 mm
Depth 64 mm 76 mm
Weight 522 gram 675 gram