Nikon D7100 vs Nikon D40x

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

Manufacturing

These cameras are both manufactured by Nikon.

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

Camera Released
Nikon D7100 2013
Nikon D40x 2007

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 D7100 75 mm
Nikon DX 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 (Nikon)

Resolution

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

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 D7100 100-6400
Nikon D40x 100-3200

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 D7100
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. Nikon D7100 can shoot up to 6 pictures per seconds and Nikon D40x can shoot up to 3 pictures per seconds.

Camera FPS (Frames per second)
Nikon D7100 6
Nikon D40x 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 Nikon D7100. Unfortunately Nikon D40x 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.

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 D7100 675 gr
1.49 lb
Nikon D40x 522 gr
1.15 lb

Nikon D7100 vs Nikon D40x Specs

Below you will find the complete and detailed technical specs for both Nikon D7100 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
Nikon D7100
Nikon D40x
Name Nikon D7100 Nikon D40x
Manufacturer Nikon Nikon
Release Date and Price
Nikon D7100
Nikon D40x
Release Year 2013 2007
Release Date 2013-02-21 2007-03-06
MSRP 1199 USD 729 USD
Buy it today
Camera Type
Nikon D7100
Nikon D40x
Camera Type DSLR DSLR
Sensor
Nikon D7100
Nikon D40x
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 CMOS CCD
Resolution 6000 x 4000 pixels 3872 x 2592 pixels
Megapixels 24,1 MP 10 MP
Image Processor EXPEED 3 EXPEED
Image
Nikon D7100
Nikon D40x
ISO Range 100 - 6400 100 - 3200
White Balance Presets 12 6
Custom White Balance Yes Yes
Image Stabilization No No
Image Stabilization CIPA Rating 0 stops 0 stops
Uncompressed format RAW RAW
Optics & Focus
Nikon D7100
Nikon D40x
Autofocus Motor Yes No
Autofocus Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Face Detection
LiveView
Phase Detect
Multi Area
Selective Single Point
Single
Continuous
Focus Points 51 3
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 D7100
Nikon D40x
Articulated LCD Fixed Fixed
Screen size 3,2” 2,5”
Screen dots 1228800 230000
Touch screen No No
Screen type Wide Viewing Angle TFT-LCD monitor N/A
Live view Yes No
Viewfinder Type Optical (pentaprism) Optical (pentamirror)
Viewfinder Coverage 100% 95%
Viewfinder Magnification 0.94× 0.8× (0.53× 35mm equiv.)
Viewfinder Resolution N/A N/A
Photography features
Nikon D7100
Nikon D40x
Frames per second 6 fps 3 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/8000 seconds 1/4000 seconds
Built-in Flash Yes Yes
Built-in Flash Range 12 meters 17 meters
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse Yes Yes
Metering modes Multi
Center Weighted
Spot
Average
Multi
Center Weighted
Spot
Exposure Compensation +/- 5 (at 1/3 EV, 1/2 EV steps) +/- 5 (at 1/3 EV steps)
Videography features
Nikon D7100
Nikon D40x
Video recording Yes No
Video format MPEG4
H.264
N/A
Video resolution 1280 x 720
1920 x 1080
N/A
Built-in Microphone Yes No
Built-in Speakers Yes No
Storage
Nikon D7100
Nikon D40x
Memory Card SD/SDHC
SD/SDHC
Connectivity
Nikon D7100
Nikon D40x
HDMI Output Yes No
Microphone Port Yes No
Headphone Port Yes No
Wireless Yes
Wireless WR-1 and WR-R10
No
Remote Control Yes (Optional, wired MC-DC2 or wireless WR-1 and WR-R10 )
Yes (Optional (ML-L3))
GPS Yes
Optional
No
Body & Dimensions
Nikon D7100
Nikon D40x
Enviromentally sealed Yes No
Battery Battery Pack Battery Pack
Battery Details Lithium-Ion EN-EL15 rechargeable battery & charger
Nikon EN-EL9 Lithium-Ion & charger included
Battery Life (CIPA) 950 shots 520 shots
Width 136 mm 124 mm
Height 107 mm 94 mm
Depth 76 mm 64 mm
Weight 675 gram 522 gram