Nikon D3100 vs Nikon D70s

This is a full comparison between the cameras Nikon D3100 and Nikon D70s. We compare them by looking at the categories you see below.


These cameras are both manufactured by Nikon.

Nikon D3100 were released 2010 and Nikon D70s was released 2005. That is a 5 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Nikon D3100 2010
Nikon D70s 2005

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 D3100 75 mm
Nikon DX sensor
Crop factor/focal length multiplier by * 1.5
Nikon D70s 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)


Nikon D3100 has a 14,2 MP (Megapixels) resolution while Nikon D70s has 6 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Nikon D3100 14,2 MP
14155776 pixels
4608 x 3072
Nikon D70s 6 MP
6016000 pixels
3008 x 2000

Nikon D3100 has a 135 % larger resolution than Nikon D70s. 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 Nikon D70s. Nikon D3100 has an ISO range that stretches from 100 to 12800 while Nikon D70s has 200 to 1600.

Camera ISO Range
Nikon D3100 100-12800
Nikon D70s 200-1600

Autofocus and lens compatibility

There is a big difference between these two cameras. Nikon D70s 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 Nikon D3100
Lens compatibility chart for Nikon D70s

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Nikon D3100 can shoot up to 3 pictures per seconds and Nikon D70s can shoot up to 3 pictures per seconds.

Camera FPS (Frames per second)
Nikon D3100 3
Nikon D70s 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 D3100. Unfortunately Nikon D70s does not support recording movies and movie clips.


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 D70s weighs 679 gr (equal to 1.5 lb) which is 34% heavier than Nikon D3100 and its 505 gr (or 1.11 lb).

Camera Weight
Nikon D3100 505 gr
1.11 lb
Nikon D70s 679 gr
1.5 lb

Nikon D3100 vs Nikon D70s Specs

Below you will find the complete and detailed technical specs for both Nikon D3100 and Nikon D70s, 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.

Nikon D3100
Nikon D70s
Name Nikon D3100 Nikon D70s
Manufacturer Nikon Nikon
Release Date and Price
Nikon D3100
Nikon D70s
Release Year 2010 2005
Release Date 2010-08-19 2005-04-20
MSRP 699 USD 749 USD
Buy it today
Camera Type
Nikon D3100
Nikon D70s
Camera Type DSLR DSLR
Nikon D3100
Nikon D70s
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 4608 x 3072 pixels 3008 x 2000 pixels
Megapixels 14,2 MP 6 MP
Image Processor EXPEED 2 Nikon LSI (Large Scale Integration)
Nikon D3100
Nikon D70s
ISO Range 100 - 12800 200 - 1600
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 D3100
Nikon D70s
Autofocus Motor No Yes
Autofocus Contract Detect (sensor)
Phase Detect
Multi Area
Selective Single Point
Face Detection
Phase Detect
Multi Area
Selective Single Point
Focus Points 11 5
Lens Mount Nikon F

See Compatible Lenses
Nikon F

See Compatible Lenses
Focal Length Multiplier DX / APS-C (1.5x)
1.5x multiplier
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
24 mm becomes 36 mm
50 mm becomes 75 mm
100 mm becomes 150 mm
200 mm becomes 300 mm
Screen & Viewfinder
Nikon D3100
Nikon D70s
Articulated LCD Fixed Fixed
Screen size 3 2
Screen dots 230000 130000
Touch screen No No
Screen type TFT LCD monitor N/A
Live view Yes No
Viewfinder Type Optical (pentamirror) Optical (pentaprism)
Viewfinder Coverage 95% 95%
Viewfinder Magnification 0.8 (0.53 35mm equiv.) 0.75 (0.5 35mm equiv.)
Viewfinder Resolution N/A N/A
Photography features
Nikon D3100
Nikon D70s
Frames per second 3 fps 3 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 12 meters 11 meters
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse No No
Metering modes Multi
Center Weighted
Center Weighted
Exposure Compensation +/- 5 (at 1/3 EV steps) +/- 5 (at 1/3 EV, 1/2 EV steps)
Videography features
Nikon D3100
Nikon D70s
Video recording Yes No
Video format MPEG4
Video resolution 1280 x 720
1920 x 1080
Built-in Microphone Yes No
Built-in Speakers No No
Nikon D3100
Nikon D70s
Memory Card SD/SDHC
Compact Flash
Nikon D3100
Nikon D70s
HDMI Output Yes No
Microphone Port No No
Headphone Port No No
Wireless Yes
Eye-Fi Connected
Remote Control Optional
Yes (Optional (ML-L3 or MC-DC1))
Body & Dimensions
Nikon D3100
Nikon D70s
Enviromentally sealed No No
Battery Battery Pack Battery Pack
Battery Details Lithium-Ion EN-EL14 rechargeable battery & charger
Nikon EN-EL3a Lithium-Ion & charger included
Battery Life (CIPA) N/A 400 shots
Width 124 mm 140 mm
Height 96 mm 111 mm
Depth 75 mm 78 mm
Weight 505 gram 679 gram