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Sony A7 III vs Sony A900

Portability
63
Imaging
74
Features
92
Overall
81
Sony Alpha A7 III front
 
Sony Alpha DSLR-A900 front
Portability
54
Imaging
66
Features
62
Overall
64

Sony A7 III vs Sony A900 Key Specs

Sony A7 III
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 51200 (Expand to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 650g - 127 x 96 x 74mm
  • Launched February 2018
  • Older Model is Sony A7 II
  • New Model is Sony A7 IV
Sony A900
(Full Review)
  • 25MP - Full frame Sensor
  • 3" Fixed Screen
  • ISO 100 - 6400
  • Sensor based Image Stabilization
  • 1/8000s Maximum Shutter
  • No Video
  • Sony/Minolta Alpha Mount
  • 895g - 156 x 117 x 82mm
  • Launched October 2008
  • New Model is Sony A99
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Sony A7 III vs Sony A900 Overview

Below, we will be matching up the Sony A7 III versus Sony A900, former being a Pro Mirrorless while the latter is a Advanced DSLR and both of them are manufactured by Sony. The resolution of the A7 III (24MP) and the A900 (25MP) is relatively close and they feature the exact same sensor sizes (Full frame).

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The A7 III was launched 9 years later than the A900 and that is a fairly serious difference as far as camera tech is concerned. The two cameras come with different body type with the Sony A7 III being a SLR-style mirrorless camera and the Sony A900 being a Mid-size SLR camera.

Before getting through a complete comparison, below is a concise view of how the A7 III scores vs the A900 in the way of portability, imaging, features and an overall grade.

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Reasons to pick Sony A7 III over the Sony A900

 A7 III A900 
LaunchedFebruary 2018October 2008More recent by 114 months
Screen typeTiltingFixed Tilting screen
Touch friendly screen Quickly navigate

Reasons to pick Sony A900 over the Sony A7 III

 A900 A7 III 

Common features in the Sony A7 III and Sony A900

 A7 III A900 
Manually focus Dial exact focusing
Screen dimension3"3"Identical screen dimensions
Screen resolution922k922kEqual screen resolution
Selfie screen Neither has selfie screen

Sony A7 III vs Sony A900 Physical Comparison

If you're looking to lug around your camera, you will need to factor in its weight and volume. The Sony A7 III has exterior measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 650 grams (1.43 lbs) whilst the Sony A900 has sizing of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") along with a weight of 895 grams (1.97 lbs).

Check out the Sony A7 III versus Sony A900 in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an ILC will change based on the lens you are using at that moment. Underneath is the front view dimensions comparison of the A7 III against the A900.

Sony A7 III vs Sony A900 size comparison

Taking into account size and weight, the portability rating of the A7 III and A900 is 63 and 54 respectively.

Sony A7 III vs Sony A900 top view buttons comparison

Sony A7 III vs Sony A900 Sensor Comparison

In many cases, it is hard to picture the gap in sensor measurements merely by researching a spec sheet. The visual below might provide you a clearer sense of the sensor measurements in the A7 III and A900.

Clearly, the 2 cameras have got the exact same sensor measurements albeit different megapixels. You can count on the Sony A900 to render more detail utilizing its extra 1 Megapixels. Higher resolution can also enable you to crop photographs much more aggressively. The fresher A7 III should have an advantage with regard to sensor innovation.

Sony A7 III vs Sony A900 sensor size comparison

Sony A7 III vs Sony A900 Screen and ViewFinder

Sony A7 III vs Sony A900 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Sony A7 III
Portrait photography with Sony A900
84
focusing manually
decent MP (24 megapixels)
sensor size is big (Full frame)
comes with face detection autofocus
supports RAW files
71
manual focus
megapixel count great (25MP)
sensor size is large (Full frame)
saves RAW formats
does not have liveview
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Street Comparison

Sony A7 III as a Street photography camera
Sony A900 as a Street photography camera
78
tilting screen
has image stabilization (Sensor based 5-axis)
sensor size is big (Full frame)
supports RAW files
has focus by touch
weather proof
very good high ISO (51,200)
66
has image stabilization (Sensor based)
sensor size is large (Full frame)
saves RAW formats
weather proofing
no articulating screen
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Sports Comparison

Sony A7 III Sports photography features
Sony A900 Sports photography features
87
high shutter speed (1/8,000s)
has image stabilization (Sensor based 5-axis)
decent MP (24MP)
sensor size is big (Full frame)
comes with tracking autofocus
weather proof
better than average battery pack (610 shots)
has phase detect autofocus
70
max shutter speed is good (1/8,000 seconds)
has image stabilization (Sensor based)
megapixel count great (25 megapixels)
sensor size is large (Full frame)
weather proofing
has phase detect autofocus
does not have liveview
max fps low (5.0 frames/s)
Photography Glossary

Travel Comparison

Sony A7 III Travel photography factors
Sony A900 Travel photography factors
73
better than average battery pack (610 per charge)
weather proof
has bluetooth
has focus by touch
decent MP (24MP)
screen isn't selfie friendly
54
weather proofing
megapixel count great (25 megapixels)
doesn't have Timelapse function
doesn't feature selfie friendly screen
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Landscape Comparison

Sony A7 III as a Landscape photography camera
Sony A900 as a Landscape photography camera
85
focusing manually
swap lenses (Sony E mount)
nice screen size (3 inch)
has image stabilization (Sensor based 5-axis)
decent MP (24 megapixels)
sensor size is big (Full frame)
very good high ISO (51,200)
supports RAW files
weather proof
better than average battery pack (610 per charge)
has double storage slots
72
manual focus
change lenses (Sony/Minolta Alpha mount)
nice screen size (3")
has image stabilization (Sensor based)
megapixel count great (25 megapixels)
sensor size is large (Full frame)
saves RAW formats
weather proofing
has dual storage slots
does not have liveview
doesn't have Timelapse function
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Vlogging Comparison

Sony A7 III Vlogging highlights
Sony A900 Vlogging highlights
36
screen is touchscreen
has image stabilization (Sensor based 5-axis)
comes with face detection autofocus
high video quality (3840 x 2160 resolution)
has external mic port
screen isn't selfie friendly
9
no video
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Sony A7 III vs Sony A900 Specifications

Detailed spec comparison table for Sony A7 III and Sony A900
 Sony Alpha A7 IIISony Alpha DSLR-A900
General Information
Make Sony Sony
Model type Sony Alpha A7 III Sony Alpha DSLR-A900
Type Pro Mirrorless Advanced DSLR
Launched 2018-02-27 2008-10-22
Body design SLR-style mirrorless Mid-size SLR
Sensor Information
Chip Bionz X Bionz
Sensor type BSI-CMOS CMOS
Sensor size Full frame Full frame
Sensor measurements 35.8 x 23.8mm 35.9 x 24mm
Sensor area 852.0mm² 861.6mm²
Sensor resolution 24 megapixels 25 megapixels
Anti alias filter
Aspect ratio 3:2 and 16:9 3:2 and 16:9
Maximum resolution 6000 x 4000 6048 x 4032
Maximum native ISO 51200 6400
Maximum boosted ISO 204800 -
Min native ISO 100 100
RAW photos
Min boosted ISO 50 -
Autofocusing
Manual focusing
Touch focus
Continuous AF
AF single
Tracking AF
Selective AF
AF center weighted
AF multi area
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Total focus points 693 9
Lens
Lens support Sony E Sony/Minolta Alpha
Amount of lenses 121 143
Crop factor 1 1
Screen
Range of screen Tilting Fixed Type
Screen sizing 3 inches 3 inches
Resolution of screen 922 thousand dot 922 thousand dot
Selfie friendly
Liveview
Touch function
Screen tech - TFT Xtra Fine color LCD
Viewfinder Information
Viewfinder Electronic Optical (pentaprism)
Viewfinder resolution 2,359 thousand dot -
Viewfinder coverage 100% 100%
Viewfinder magnification 0.78x 0.74x
Features
Slowest shutter speed 30 seconds 30 seconds
Maximum shutter speed 1/8000 seconds 1/8000 seconds
Continuous shooting speed 10.0 frames per second 5.0 frames per second
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change WB
Image stabilization
Inbuilt flash
Flash distance no built-in flash no built-in flash
Flash options no built-in flash Auto, On, Off, Red-Eye, Slow Sync, Rear Curtain, Fill-in, Wireless
Hot shoe
AEB
White balance bracketing
Maximum flash sync - 1/250 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions 3840 x 2160 (30p, 24p) 1920 x 1080 (120p, 60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p) -
Maximum video resolution 3840x2160 None
Video file format MPEG-4, AVCHD, XAVC S, H.264 -
Microphone input
Headphone input
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 3.1 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 650 gr (1.43 pounds) 895 gr (1.97 pounds)
Dimensions 127 x 96 x 74mm (5.0" x 3.8" x 2.9") 156 x 117 x 82mm (6.1" x 4.6" x 3.2")
DXO scores
DXO All around rating 96 79
DXO Color Depth rating 25.0 23.7
DXO Dynamic range rating 14.7 12.3
DXO Low light rating 3730 1431
Other
Battery life 610 images 880 images
Battery format Battery Pack Battery Pack
Battery ID NP-FZ100 NP-FM500H
Self timer Yes (2 or 10 sec; continuous (3 or 5 exposures)) Yes (2 or 10 sec)
Time lapse feature
Storage media SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo Compact Flash (Type I or II), Memory Stick Duo / Pro Duo, UDMA Mode 5, Supports FAT12 / FAT16 / FAT32
Storage slots 2 2
Launch price $1,998 $2,736