Sony a33 vs Sony a9 II

This is a full comparison between the cameras Sony a33 and Sony a9 II. We compare them by looking at the categories you see below.


These cameras are both manufactured by Sony.

Sony a33 were released 2010 and Sony a9 II was released 2019. That is a 9 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera Released
Sony a33 2010
Sony a9 II 2019

Type of camera

Sensors / crop factor

These cameras have different sensors. Sony a33 has a "Sony APS-C"-sensor while Sony a9 II has a "Sony Full Frame"-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 a33 75 mm
Sony APS-C sensor
Crop factor/focal length multiplier by * 1.5
Sony a9 II 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)


Sony a33 has a 14 MP (Megapixels) resolution while Sony a9 II has 24 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels
Sony a33 14 MP
14033152 pixels
4592 x 3056
Sony a9 II 24 MP
24000000 pixels
6000 x 4000

Sony a9 II has a 71 % larger resolution than Sony a33. 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 a9 II has a larger ISO-range than Sony a33. Sony a9 II has an ISO range that stretches from 100 to 51200 while Sony a33 has 100 to 12800.

Camera ISO Range
Sony a33 100-12800
Sony a9 II 100-51200

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 a33
Lens compatibility chart for Sony a9 II

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Sony a33 can shoot up to 7 pictures per seconds and Sony a9 II can shoot up to 20 pictures per seconds.

Camera FPS (Frames per second)
Sony a33 7
Sony a9 II 20

Ability to record movies

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

In this case, both Sony a33 and Sony a9 II can shoot movies.


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.

Sony a9 II weighs 678 gr (equal to 1.49 lb) which is 36% heavier than Sony a33 and its 500 gr (or 1.1 lb).

Camera Weight
Sony a33 500 gr
1.1 lb
Sony a9 II 678 gr
1.49 lb

Sony a33 vs Sony a9 II Specs

Below you will find the complete and detailed technical specs for both Sony a33 and Sony a9 II, 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.

Sony a33
Sony a9 II
Name Sony a33 Sony a9 II
Manufacturer Sony Sony
Release Date and Price
Sony a33
Sony a9 II
Release Year 2010 2019
Release Date 2010-08-24 2019-10-03
MSRP 949 USD 4499 USD
Buy it today
Camera Type
Sony a33
Sony a9 II
Camera Type SLT Mirrorless
Sony a33
Sony a9 II
Sensor Size APS-C (approx 23.5 x 15.6 mm) Full Frame (approx 36 x 24 mm)
Sensor Type CMOS Stacked CMOS
Resolution 4592 x 3056 pixels 6000 x 4000 pixels
Megapixels 14 MP 24 MP
Image Processor Bionz Bionz X
Sony a33
Sony a9 II
ISO Range 100 - 12800 100 - 51200
White Balance Presets 6 9
Custom White Balance Yes Yes
Image Stabilization Yes
(Sensor-Shift (5-axis))
Image Stabilization CIPA Rating 0 stops 5.5 stops
Uncompressed format RAW RAW
Optics & Focus
Sony a33
Sony a9 II
Autofocus Motor Yes Yes
Autofocus Phase Detect
Multi Area
Selective Single Point
Face Detection
Contract Detect (sensor)
Phase Detect
Multi Area
Selective Single Point
Face Detection
Focus Points 15 693
Lens Mount Sony A

See Compatible Lenses
Sony E

See Compatible Lenses
Focal Length Multiplier APS-C Sensor (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
Full frame
No multiplier
24 mm remains 24 mm
50 mm remains 50 mm
100 mm remains 100 mm
200 mm remains 200 mm
Screen & Viewfinder
Sony a33
Sony a9 II
Articulated LCD Fully articulated Tilting
Screen size 3 3
Screen dots 921000 1440000
Touch screen No Yes
Screen type N/A TFT LCD
Live view Yes Yes
Viewfinder Type Electronic Electronic
Viewfinder Coverage 100% 100%
Viewfinder Magnification 1.1 (0.73 35mm equiv.) 0.78x
Viewfinder Resolution N/A 3686400
Photography features
Sony a33
Sony a9 II
Frames per second 7 fps 20 fps
Minimum Shutter Speed 30 seconds 30 seconds
Maximum Shutter Speed 1/4000 seconds 1/8000 seconds
Built-in Flash Yes No
Built-in Flash Range 10 meters N/A
External Flash Yes Yes
Self-Timer Yes Yes
Time-lapse No Yes
Metering modes Multi
Center Weighted
Center Weighted
Highlight Weighted
Exposure Compensation +/- 2 (at 1/3 EV steps) +/- 5 (at 1/3 EV, 1/2 EV steps)
Videography features
Sony a33
Sony a9 II
Video recording Yes Yes
Video format MPEG4
Video resolution 1440 x 1080
1920 x 1080
1280 x 720
1920 x 1080
3840 x 2160
Built-in Microphone Yes Yes
Built-in Speakers No Yes
Sony a33
Sony a9 II
Memory Card Memory Stick Pro Duo
Sony a33
Sony a9 II
HDMI Output Yes Yes
Microphone Port No Yes
Headphone Port No Yes
Wireless Yes
Eye-Fi Connected
Built-in (802.11ac + NFC + Bluetooth)
Remote Control Yes (Optional) Yes (Wired or wireless)
Body & Dimensions
Sony a33
Sony a9 II
Enviromentally sealed No Yes
Battery Battery Pack Battery Pack
Battery Details Rechargeable NP-FW50 battery & charger
Battery Life (CIPA) 270 shots 690 shots
Width 124 mm 129 mm
Height 92 mm 96 mm
Depth 85 mm 76 mm
Weight 500 gram 678 gram