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Sony A7R III vs Sony A33

Portability
63
Imaging
78
Features
93
Overall
84
Sony Alpha A7R III front
 
Sony SLT-A33 front
Portability
67
Imaging
54
Features
80
Overall
64

Sony A7R III vs Sony A33 Key Specs

Sony A7R III
(Full Review)
  • 42MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 32000 (Raise to 102400)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 657g - 127 x 96 x 74mm
  • Released October 2017
  • Old Model is Sony A7R II
  • Newer Model is Sony A7R IV
Sony A33
(Full Review)
  • 14MP - APS-C Sensor
  • 3" Fully Articulated Display
  • ISO 100 - 12800 (Boost to 25600)
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 500g - 124 x 92 x 85mm
  • Announced August 2010
  • Successor is Sony A35
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Sony A7R III vs Sony A33 Overview

Lets take a closer look at the Sony A7R III versus Sony A33, former being a Pro Mirrorless while the other is a Entry-Level DSLR and both are manufactured by Sony. There exists a considerable gap among the resolutions of the A7R III (42MP) and A33 (14MP) and the A7R III (Full frame) and A33 (APS-C) use different sensor sizing.

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The A7R III was brought out 7 years later than the A33 and that is a fairly large difference as far as camera technology is concerned. Each of the cameras offer different body type with the Sony A7R III being a SLR-style mirrorless camera and the Sony A33 being a Compact SLR camera.

Before getting in to a step-by-step comparison, below is a brief summation of how the A7R III scores against the A33 in relation to portability, imaging, features and an overall rating.

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Reasons to pick Sony A7R III over the Sony A33

 A7R III A33 
AnnouncedOctober 2017August 2010Fresher by 88 months
Display resolution1440k921kSharper display (+519k dot)
Touch display Easily navigate

Reasons to pick Sony A33 over the Sony A7R III

 A33 A7R III 
Display typeFully ArticulatedTiltingFully Articulating display
Selfie screen Easy selfies

Common features in the Sony A7R III and Sony A33

 A7R III A33 
Manually focus More exact focusing
Display sizing3"3"Equivalent display measurement

Sony A7R III vs Sony A33 Physical Comparison

When you are aiming to carry your camera regularly, you're going to have to take into account its weight and volume. The Sony A7R III provides external measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") accompanied by a weight of 657 grams (1.45 lbs) while the Sony A33 has sizing of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") having a weight of 500 grams (1.10 lbs).

Examine the Sony A7R III versus Sony A33 in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will vary depending on the lens you have chosen during that time. Following is the front view size comparison of the A7R III compared to the A33.

Sony A7R III vs Sony A33 size comparison

Taking into account dimensions and weight, the portability score of the A7R III and A33 is 63 and 67 respectively.

Sony A7R III vs Sony A33 top view buttons comparison

Sony A7R III vs Sony A33 Sensor Comparison

Normally, it is very difficult to imagine the gap in sensor sizing simply by looking through technical specs. The graphic underneath will offer you a greater sense of the sensor sizing in the A7R III and A33.

As you can tell, the 2 cameras enjoy different megapixels and different sensor sizing. The A7R III due to its larger sensor is going to make getting shallower depth of field simpler and the Sony A7R III will result in extra detail having its extra 28MP. Greater resolution will help you crop pics far more aggressively. The newer A7R III provides a benefit with regard to sensor innovation.

Sony A7R III vs Sony A33 sensor size comparison

Sony A7R III vs Sony A33 Screen and ViewFinder

Sony A7R III vs Sony A33 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sony A7R III Portrait photography details
Sony A33 Portrait photography details
86
you can focus manually
megapixel count amazing (42 megapixels)
sensor size is big (Full frame)
provides face detect autofocus
delivers RAW files
72
you can focus manually
decent sensor resolution (14 megapixels)
good sensor size (APS-C)
provides face detection focusing
delivers RAW files
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Street Comparison

Sony A7R III Street photography info
Sony A33 Street photography info
79
has a tilting screen
built in image stabilization (Sensor based 5-axis)
sensor size is big (Full frame)
delivers RAW files
boasts touch focus
weather proof
great high ISO (32,000)
76
fully articulated screen
built in image stabilization (Sensor based)
good sensor size (APS-C)
delivers RAW files
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Sports Comparison

Sony A7R III Sports photography info
Sony A33 Sports photography info
89
high shutter speed (1/8,000s)
built in image stabilization (Sensor based 5-axis)
megapixel count amazing (42 megapixels)
sensor size is big (Full frame)
provides tracking focus
weather proof
great battery life (650 per charge)
sensor has phase detect autofocus
67
built in image stabilization (Sensor based)
decent sensor resolution (14MP)
good sensor size (APS-C)
has phase detect AF
bad battery life (340 per charge)
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Travel Comparison

Sony A7R III Travel photography details
Sony A33 Travel photography details
74
great battery life (650 shots)
weather proof
supports bluetooth
boasts touch focus
megapixel count amazing (42MP)
does not posses selfie friendly screen
61
decent sensor resolution (14 megapixels)
has built in flash
selfie friendly screen
doesn't have Timelapse function
bad battery life (340 CIPA)
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Landscape Comparison

Sony A7R III Landscape photography advice
Sony A33 Landscape photography advice
87
you can focus manually
swap lenses (Sony E mount)
nice screen size (3")
built in image stabilization (Sensor based 5-axis)
megapixel count amazing (42 megapixels)
sensor size is big (Full frame)
doesnt have low pass filter
great high ISO (32,000)
delivers RAW files
weather proof
great battery life (650 CIPA)
2 card slots
67
you can focus manually
swap lenses (Sony/Minolta Alpha mount)
decent sized screen (3")
built in image stabilization (Sensor based)
decent sensor resolution (14MP)
good sensor size (APS-C)
delivers RAW files
bad battery life (340 CIPA)
doesn't have Timelapse function
Photography Glossary

Vlogging Comparison

Vlogging with Sony A7R III
Vlogging with Sony A33
37
built-in touchscreen
built in image stabilization (Sensor based 5-axis)
provides face detect autofocus
high video quality (3840 x 2160 pxls)
includes mic support
does not posses selfie friendly screen
77
selfie friendly screen
built in image stabilization (Sensor based)
provides face detection focusing
video resolution high (1920 x 1080 pxls)
has external microphone jack
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Sony A7R III vs Sony A33 Specifications

Detailed spec comparison table for Sony A7R III and Sony A33
 Sony Alpha A7R IIISony SLT-A33
General Information
Brand Sony Sony
Model Sony Alpha A7R III Sony SLT-A33
Type Pro Mirrorless Entry-Level DSLR
Released 2017-10-25 2010-08-24
Body design SLR-style mirrorless Compact SLR
Sensor Information
Powered by Bionz X Bionz
Sensor type BSI-CMOS CMOS
Sensor size Full frame APS-C
Sensor measurements 35.9 x 24mm 23.5 x 15.6mm
Sensor area 861.6mm² 366.6mm²
Sensor resolution 42 megapixel 14 megapixel
Anti aliasing filter
Aspect ratio 3:2 and 16:9 3:2 and 16:9
Peak resolution 7952 x 5304 4592 x 3056
Highest native ISO 32000 12800
Highest enhanced ISO 102400 25600
Minimum native ISO 100 100
RAW photos
Minimum enhanced ISO 50 -
Autofocusing
Manual focus
Touch focus
Autofocus continuous
Single autofocus
Autofocus tracking
Selective autofocus
Center weighted autofocus
Multi area autofocus
Autofocus live view
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points 425 15
Cross focus points - 3
Lens
Lens mounting type Sony E Sony/Minolta Alpha
Number of lenses 121 143
Crop factor 1 1.5
Screen
Screen type Tilting Fully Articulated
Screen size 3 inch 3 inch
Screen resolution 1,440 thousand dot 921 thousand dot
Selfie friendly
Liveview
Touch function
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 3,686 thousand dot 1,150 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.78x 0.73x
Features
Minimum shutter speed 30s 30s
Fastest shutter speed 1/8000s 1/4000s
Continuous shutter speed 10.0 frames/s 7.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
Image stabilization
Inbuilt flash
Flash range no built-in flash 10.00 m (@ ISO 100)
Flash options Off, Auto, Fill-flash, Slow Sync, Rear Sync, Red-eye reduction, Wireless, Hi-speed sync Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
External flash
Auto exposure bracketing
WB bracketing
Fastest flash sync - 1/160s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p) 1920 x 1080 (60, 29.97 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Highest video resolution 3840x2160 1920x1080
Video file format MPEG-4, AVCHD, XAVC S MPEG-4, AVCHD, H.264
Microphone input
Headphone input
Connectivity
Wireless Built-In Eye-Fi Connected
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 proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 657 gr (1.45 pounds) 500 gr (1.10 pounds)
Dimensions 127 x 96 x 74mm (5.0" x 3.8" x 2.9") 124 x 92 x 85mm (4.9" x 3.6" x 3.3")
DXO scores
DXO Overall score 100 70
DXO Color Depth score 26.0 22.8
DXO Dynamic range score 14.7 12.6
DXO Low light score 3523 591
Other
Battery life 650 images 340 images
Type of battery Battery Pack Battery Pack
Battery model NP-FZ100 NP-FW50
Self timer Yes (2 or 10 sec; continuous (3 or 5 exposures)) Yes (2 or 10 sec)
Time lapse feature
Type of storage Two SD/SDHC/SDXC slots (UHS-II support on one) SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Storage slots 2 1
Price at release $2,800 $230