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Sigma fp vs Sony A33

Portability
84
Imaging
75
Features
79
Overall
76
Sigma fp front
 
Sony SLT-A33 front
Portability
67
Imaging
54
Features
80
Overall
64

Sigma fp vs Sony A33 Key Specs

Sigma fp
(Full Review)
  • 25MP - Full frame Sensor
  • 3.2" Fixed Display
  • ISO 100 - 25600 (Raise to 102400)
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Leica L Mount
  • 422g - 113 x 70 x 45mm
  • Revealed July 2019
  • Replacement is Sigma fp L
Sony A33
(Full Review)
  • 14MP - APS-C Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 12800 (Bump to 25600)
  • Sensor based Image Stabilization
  • 1920 x 1080 video
  • Sony/Minolta Alpha Mount
  • 500g - 124 x 92 x 85mm
  • Released August 2010
  • Renewed by Sony A35
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Sigma fp vs Sony A33 Overview

Lets look a bit more closely at the Sigma fp and Sony A33, one is a Advanced Mirrorless and the latter is a Entry-Level DSLR by rivals Sigma and Sony. There is a significant difference between the image resolutions of the fp (25MP) and A33 (14MP) and the fp (Full frame) and A33 (APS-C) provide different sensor dimensions.

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The fp was introduced 9 years after the A33 which is quite a sizable gap as far as tech is concerned. The two cameras have different body design with the Sigma fp being a Rangefinder-style mirrorless camera and the Sony A33 being a Compact SLR camera.

Before getting right into a complete comparison, here is a brief overview of how the fp grades vs the A33 when considering portability, imaging, features and an overall score.

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Reasons to pick Sigma fp over the Sony A33

 fp A33 
ReleasedJuly 2019August 2010More modern by 109 months
Screen dimensions3.2"3"Bigger screen (+0.2")
Screen resolution2100k921kSharper screen (+1179k dot)
Touch friendly screen Quickly navigate

Reasons to pick Sony A33 over the Sigma fp

 A33 fp 
Screen typeFully ArticulatedFixed Fully Articulating screen
Selfie screen Take selfies

Common features in the Sigma fp and Sony A33

 fp A33 
Manually focus Dial precise focus

Sigma fp vs Sony A33 Physical Comparison

For those who are intending to carry around your camera regularly, you will have to factor its weight and size. The Sigma fp comes with outside measurements of 113mm x 70mm x 45mm (4.4" x 2.8" x 1.8") accompanied by a weight of 422 grams (0.93 lbs) while the Sony A33 has specifications of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") having a weight of 500 grams (1.10 lbs).

Analyze the Sigma fp and Sony A33 in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an Interchangeable Lens Camera will change based on the lens you choose at the time. Following is a front view physical size comparison of the fp vs the A33.

Sigma fp vs Sony A33 size comparison

Considering size and weight, the portability score of the fp and A33 is 84 and 67 respectively.

Sigma fp vs Sony A33 top view buttons comparison

Sigma fp vs Sony A33 Sensor Comparison

Oftentimes, it's difficult to visualize the difference between sensor sizes just by reviewing specs. The pic underneath might offer you a far better sense of the sensor sizing in the fp and A33.

As you can plainly see, the 2 cameras have different megapixels and different sensor sizes. The fp using its bigger sensor is going to make achieving shallower depth of field easier and the Sigma fp will deliver greater detail using its extra 11MP. Higher resolution will also enable you to crop shots a bit more aggressively. The more modern fp should have an edge with regard to sensor technology.

Sigma fp vs Sony A33 sensor size comparison

Sigma fp vs Sony A33 Screen and ViewFinder

Sigma fp vs Sony A33 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sigma fp as a Portrait photography camera
Sony A33 as a Portrait photography camera
85
you can focus manually
fantastic megapixels (25MP)
sensor size is great (Full frame)
offers face detect autofocus
exports RAW files
72
you can focus manually
good resolution (14 megapixels)
good sensor size (APS-C)
supports face detection autofocus
delivers RAW files
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Street Comparison

Sigma fp Street photography features
Sony A33 Street photography features
77
sensor size is great (Full frame)
exports RAW files
boasts touch focus
weather proof
above average ISO range (25,600)
screen does not articulate
lack of image stabilization
76
screen articulates
image stabilization (Sensor based)
good sensor size (APS-C)
delivers RAW files
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Sports Comparison

Sigma fp as a Sports photography camera
Sony A33 as a Sports photography camera
73
great max shutter speed (1/8,000s)
fantastic megapixels (25MP)
sensor size is great (Full frame)
offers tracking focus
weather proof
lack of image stabilization
lack of phase detect autofocus
67
image stabilization (Sensor based)
good resolution (14 megapixels)
good sensor size (APS-C)
comes with phase detect autofocus
not so great battery life (340 per charge)
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Travel Comparison

Travel photography with Sigma fp
Travel photography with Sony A33
78
weather proof
boasts touch focus
fantastic megapixels (25 megapixels)
screen isn't selfie friendly
61
good resolution (14 megapixels)
has built in flash
display is selfie friendly
no Time Lapse function
not so great battery life (340 shots)
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Landscape Comparison

Landscape photography with Sigma fp
Landscape photography with Sony A33
82
you can focus manually
change lenses (Leica L mount)
pretty good screen size (3.2 inch)
fantastic megapixels (25 megapixels)
sensor size is great (Full frame)
above average ISO range (25,600)
exports RAW files
weather proof
lack of image stabilization
67
you can focus manually
switch lenses (Sony/Minolta Alpha mount)
pretty good screen size (3 inches)
image stabilization (Sensor based)
good resolution (14MP)
good sensor size (APS-C)
delivers RAW files
not so great battery life (340 CIPA)
no Time Lapse function
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Vlogging Comparison

Sigma fp Vlogging advice
Sony A33 Vlogging advice
37
touchscreen enabled
offers face detect autofocus
high video quality (3840 x 2160 pxls)
includes mic socket
screen isn't selfie friendly
lack of image stabilization
77
display is selfie friendly
image stabilization (Sensor based)
supports face detection autofocus
great video quality (1920 x 1080 resolution)
does have external mic jack
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Sigma fp vs Sony A33 Specifications

Detailed spec comparison table for Sigma fp and Sony A33
 Sigma fpSony SLT-A33
General Information
Brand Name Sigma Sony
Model Sigma fp Sony SLT-A33
Type Advanced Mirrorless Entry-Level DSLR
Revealed 2019-07-11 2010-08-24
Body design Rangefinder-style mirrorless Compact SLR
Sensor Information
Powered by - Bionz
Sensor type BSI-CMOS CMOS
Sensor size Full frame APS-C
Sensor dimensions 35.9 x 23.9mm 23.5 x 15.6mm
Sensor surface area 858.0mm² 366.6mm²
Sensor resolution 25 megapixel 14 megapixel
Anti aliasing filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Max resolution 6000 x 4000 4592 x 3056
Max native ISO 25600 12800
Max enhanced ISO 102400 25600
Min native ISO 100 100
RAW files
Min enhanced ISO 6 -
Autofocusing
Focus manually
Autofocus touch
Continuous autofocus
Single autofocus
Tracking autofocus
Autofocus selectice
Autofocus center weighted
Autofocus multi area
Live view autofocus
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Number of focus points 49 15
Cross focus points - 3
Lens
Lens mount Leica L Sony/Minolta Alpha
Number of lenses 30 143
Crop factor 1 1.5
Screen
Range of display Fixed Type Fully Articulated
Display diagonal 3.2 inches 3 inches
Display resolution 2,100 thousand dot 921 thousand dot
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder type None Electronic
Viewfinder resolution - 1,150 thousand dot
Viewfinder coverage - 100%
Viewfinder magnification - 0.73x
Features
Minimum shutter speed 30 seconds 30 seconds
Fastest shutter speed 1/8000 seconds 1/4000 seconds
Continuous shutter speed 12.0 frames per second 7.0 frames per second
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes Yes
Set white balance
Image stabilization
Inbuilt flash
Flash range no built-in flash 10.00 m (@ ISO 100)
Flash modes no built-in flash Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless
Hot shoe
AE bracketing
White balance bracketing
Fastest flash sync - 1/160 seconds
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 3840 x 2160 @ 30p, MOV, H.264, Linear PCM 1920 x 1080 (60, 29.97 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps)
Max video resolution 3840x2160 1920x1080
Video data format MPEG-4, H.264 MPEG-4, AVCHD, H.264
Mic input
Headphone input
Connectivity
Wireless No Eye-Fi Connected
Bluetooth
NFC
HDMI
USB Yes USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 422g (0.93 lbs) 500g (1.10 lbs)
Physical dimensions 113 x 70 x 45mm (4.4" x 2.8" x 1.8") 124 x 92 x 85mm (4.9" x 3.6" x 3.3")
DXO scores
DXO Overall score not tested 70
DXO Color Depth score not tested 22.8
DXO Dynamic range score not tested 12.6
DXO Low light score not tested 591
Other
Battery life - 340 pictures
Type of battery - Battery Pack
Battery model BP-51 NP-FW50
Self timer Yes (2 or 10 wec) Yes (2 or 10 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC (UHS-II supported) SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Storage slots Single Single
Pricing at release $2,050 $230