Nikon D810A vs Nikon D90

This is a full comparison between the cameras Nikon D810A and Nikon D90. We compare them by looking at the categories you see below.

Manufacturing

These cameras are both manufactured by Nikon.

Nikon D810A were released 2015 and Nikon D90 was released 2008. That is a 7 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Nikon D810A 2015
Nikon D90 2008

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

These cameras have different sensors. Nikon D810A has a "Nikon FX"-sensor while Nikon D90 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 **
Nikon D810A 50 mm
Full-frame sensor
No crop factor/focal length multiplier
Nikon D90 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 D810A has a 36 MP (Megapixels) resolution while Nikon D90 has 12,3 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Nikon D810A 36 MP
36152320 pixels
7360 x 4912
Nikon D90 12,3 MP
12212224 pixels
4288 x 2848

Nikon D810A has a 196 % larger resolution than Nikon D90. 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 D810A has a larger ISO-range than Nikon D90. Nikon D810A has an ISO range that stretches from 200 to 12800 while Nikon D90 has 200 to 6400.

Camera ISO Range
Nikon D810A 200-12800
Nikon D90 200-6400

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 Nikon D810A
Lens compatibility chart for Nikon D90

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Nikon D810A can shoot up to 5 pictures per seconds and Nikon D90 can shoot up to 4,5 pictures per seconds.

Camera FPS (Frames per second)
Nikon D810A 5
Nikon D90 4,5

Ability to record movies

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

In this case, both Nikon D810A and Nikon D90 can shoot movies.

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 D810A weighs 880 gr (equal to 1.94 lb) which is 25% heavier than Nikon D90 and its 703 gr (or 1.55 lb).

Camera Weight
Nikon D810A 880 gr
1.94 lb
Nikon D90 703 gr
1.55 lb

Nikon D810A vs Nikon D90 Specs

Below you will find the complete and detailed technical specs for both Nikon D810A and Nikon D90, 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 D810A
Nikon D90
Name Nikon D810A Nikon D90
Manufacturer Nikon Nikon
Release Date and Price
Nikon D810A
Nikon D90
Release Year 2015 2008
Release Date 2015-02-10 2008-08-27
MSRP 3799 USD 899 USD
Buy it today
Camera Type
Nikon D810A
Nikon D90
Camera Type DSLR DSLR
Sensor
Nikon D810A
Nikon D90
Sensor Size Full Frame (approx 36 x 23.9 mm)
Also known as "FX"
APS-C (approx 23.7 x 15.5 mm)
Also known as "DX"
Sensor Type CMOS CMOS
Resolution 7360 x 4912 pixels 4288 x 2848 pixels
Megapixels 36 MP 12,3 MP
Image Processor EXPEED 4 Nikon LSI (Large Scale Integration)
Image
Nikon D810A
Nikon D90
ISO Range 200 - 12800 200 - 6400
White Balance Presets 12 12
Custom White Balance Yes Yes
Image Stabilization No No
Image Stabilization CIPA Rating 0 stops 0 stops
Uncompressed format RAW + TIFF RAW
Optics & Focus
Nikon D810A
Nikon D90
Autofocus Motor Yes Yes
Autofocus Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Face Detection
LiveView
Contract Detect (sensor)
Phase Detect
Multi Area
Selective Single Point
Single
Continuous
Face Detection
LiveView
Focus Points 51 11
Lens Mount Nikon F

See Compatible Lenses
Nikon F

See Compatible Lenses
Focal Length Multiplier FX (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
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 D810A
Nikon D90
Articulated LCD Fixed Fixed
Screen size 3.2” 3”
Screen dots 1229000 920000
Touch screen No No
Screen type TFT-LCD (RGBW) Super Density TFT color LCD with wide-viewing angle
Live view Yes Yes
Viewfinder Type Optical (tunnel) Optical (pentaprism)
Viewfinder Coverage 100% 96%
Viewfinder Magnification 0.7× 0.96× (0.64× 35mm equiv.)
Viewfinder Resolution N/A N/A
Photography features
Nikon D810A
Nikon D90
Frames per second 5 fps 4,5 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
Highlight Weighted
Spot
Multi
Center Weighted
Spot
Exposure Compensation +/- 5 (at 1/3 EV, 1/2 EV, 1 EV steps) +/- 5 (at 1/3 EV, 1/2 EV steps)
Videography features
Nikon D810A
Nikon D90
Video recording Yes Yes
Video format MPEG4
H.264
MPEG4
Video resolution 1280 x 720
1920 x 1080
1280 x 720
Built-in Microphone Yes Yes
Built-in Speakers Yes Yes
Storage
Nikon D810A
Nikon D90
Memory Card Compact Flash
SD/SDHC
SD/SDHC
Connectivity
Nikon D810A
Nikon D90
HDMI Output Yes Yes
Microphone Port Yes No
Headphone Port Yes No
Wireless Yes
Optional via WT-5A or Eye-Fi
Yes
Eye-Fi Connected
Remote Control Yes Yes (Optional ML-L3 or MC-DC2)
GPS Yes
Optional via GP-1 or GP-1A
Yes
Optional
Body & Dimensions
Nikon D810A
Nikon D90
Enviromentally sealed Yes No
Battery Battery Pack Battery Pack
Battery Details EN-EL15 lithium-ion battery & charger
Lithium-Ion EN-EL3e rechargeable battery & charger
Battery Life (CIPA) 1200 shots 850 shots
Width 146 mm 132 mm
Height 123 mm 103 mm
Depth 82 mm 77 mm
Weight 880 gram 703 gram