Sony a77 vs Nikon D810A

This is a full comparison between the cameras Sony a77 and Nikon D810A. We compare them by looking at the categories you see below.

Manufacturing

Sony a77 is manufacturered by Sony but Nikon D810A is from Nikon. Both Sony and Nikon are well known brands though.

Sony a77 were released 2011 and Nikon D810A was released 2015. That is a 4 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Sony a77 2011
Nikon D810A 2015

Type of camera

Sensors / crop factor

These cameras have different sensors. Sony a77 has a "Sony APS-C"-sensor while Nikon D810A has a "Nikon FX"-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 a77 75 mm
Sony APS-C sensor
Crop factor/focal length multiplier by * 1.5
Nikon D810A 50 mm
Full-frame sensor
No crop factor/focal length multiplier

** 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

Sony a77 has a 24 MP (Megapixels) resolution while Nikon D810A has 36 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Sony a77 24 MP
24000000 pixels
6000 x 4000
Nikon D810A 36 MP
36152320 pixels
7360 x 4912

Nikon D810A has a 51 % larger resolution than Sony a77. 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

Sony a77 has a larger ISO-range than Nikon D810A. Sony a77 has an ISO range that stretches from 100 to 16000 while Nikon D810A has 200 to 12800.

Camera ISO Range
Sony a77 100-16000
Nikon D810A 200-12800

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 Sony a77
Lens compatibility chart for Nikon D810A

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a77 can shoot up to 12 pictures per seconds and Nikon D810A can shoot up to 5 pictures per seconds.

Camera FPS (Frames per second)
Sony a77 12
Nikon D810A 5

Ability to record movies

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

In this case, both Sony a77 and Nikon D810A 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 20% heavier than Sony a77 and its 732 gr (or 1.61 lb).

Camera Weight
Sony a77 732 gr
1.61 lb
Nikon D810A 880 gr
1.94 lb

Sony a77 vs Nikon D810A Specs

Below you will find the complete and detailed technical specs for both Sony a77 and Nikon D810A, 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 a77
Nikon D810A
Name Sony a77 Nikon D810A
Manufacturer Sony Nikon
Release Date and Price
Sony a77
Nikon D810A
Release Year 2011 2015
Release Date 2011-08-24 2015-02-10
MSRP 1399 USD 3799 USD
Buy it today
Camera Type
Sony a77
Nikon D810A
Camera Type SLT DSLR
Sensor
Sony a77
Nikon D810A
Sensor Size APS-C (approx 23.5 x 15.6 mm) Full Frame (approx 36 x 23.9 mm)
Also known as "FX"
Sensor Type CMOS CMOS
Resolution 6000 x 4000 pixels 7360 x 4912 pixels
Megapixels 24 MP 36 MP
Image Processor Bionz EXPEED 4
Image
Sony a77
Nikon D810A
ISO Range 100 - 16000 200 - 12800
White Balance Presets 8 12
Custom White Balance Yes Yes
Image Stabilization Yes
(Sensor-Shift)
No
Image Stabilization CIPA Rating 0 stops 0 stops
Uncompressed format RAW RAW + TIFF
Optics & Focus
Sony a77
Nikon D810A
Autofocus Motor Yes Yes
Autofocus Phase Detect
Multi Area
Selective Single Point
Single
Continuous
Face Detection
LiveView
Contract Detect (sensor)
Phase Detect
Multi Area
Center
Selective Single Point
Tracking
Single
Continuous
Face Detection
LiveView
Focus Points 19 51
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
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
Screen & Viewfinder
Sony a77
Nikon D810A
Articulated LCD Fully articulated Fixed
Screen size 3” 3.2”
Screen dots 921000 1229000
Touch screen No No
Screen type N/A TFT-LCD (RGBW)
Live view Yes Yes
Viewfinder Type Electronic Optical (tunnel)
Viewfinder Coverage 100% 100%
Viewfinder Magnification 1.1× (0.73× 35mm equiv.) 0.7×
Viewfinder Resolution N/A N/A
Photography features
Sony a77
Nikon D810A
Frames per second 12 fps 5 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/8000 seconds 1/8000 seconds
Built-in Flash Yes Yes
Built-in Flash Range 12 meters 12 meters
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse No Yes
Metering modes Multi
Center Weighted
Spot
Multi
Center Weighted
Highlight Weighted
Spot
Exposure Compensation +/- 5 (at 1/3 EV, 1/2 EV steps) +/- 5 (at 1/3 EV, 1/2 EV, 1 EV steps)
Videography features
Sony a77
Nikon D810A
Video recording Yes Yes
Video format MPEG4
H.264
AVCHD
MPEG4
H.264
Video resolution 1440 x 1080
1920 x 1080
1280 x 720
1920 x 1080
Built-in Microphone Yes Yes
Built-in Speakers Yes Yes
Storage
Sony a77
Nikon D810A
Memory Card Memory Stick Pro Duo
SD/SDHC
Compact Flash
SD/SDHC
Connectivity
Sony a77
Nikon D810A
HDMI Output Yes Yes
Microphone Port No Yes
Headphone Port No Yes
Wireless Yes
Eye-Fi Connected
Yes
Optional via WT-5A or Eye-Fi
Remote Control Yes (Optional) Yes
GPS Yes
Built-in
Yes
Optional via GP-1 or GP-1A
Body & Dimensions
Sony a77
Nikon D810A
Enviromentally sealed Yes Yes
Battery Battery Pack Battery Pack
Battery Details Rechargeable NP-FM500H battery & charger
EN-EL15 lithium-ion battery & charger
Battery Life (CIPA) 470 shots 1200 shots
Width 143 mm 146 mm
Height 104 mm 123 mm
Depth 81 mm 82 mm
Weight 732 gram 880 gram