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Sigma DP1s vs Sony a1

Portability
90
Imaging
44
Features
30
Overall
38
Sigma DP1s front
 
Sony Alpha a1 front
Portability
61
Imaging
81
Features
93
Overall
85

Sigma DP1s vs Sony a1 Key Specs

Sigma DP1s
(Full Review)
  • 5MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 100 - 800
  • No Video
  • 28mm (F) lens
  • 270g - 109 x 60 x 31mm
  • Announced October 2009
  • Superseded the Sigma DP1
  • Later Model is Sigma DP1x
Sony a1
(Full Review)
  • 50MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 32000 (Bump to 102400)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 7680 x 4320 video
  • Sony E Mount
  • 737g - 129 x 97 x 70mm
  • Revealed January 2021
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Sigma DP1s vs Sony a1 Overview

Following is a extensive review of the Sigma DP1s and Sony a1, one is a Large Sensor Compact and the other is a Pro Mirrorless by companies Sigma and Sony. There exists a crucial gap among the image resolutions of the DP1s (5MP) and a1 (50MP) and the DP1s (APS-C) and a1 (Full frame) boast different sensor dimensions.

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The DP1s was introduced 12 years earlier than the a1 which is a fairly serious gap as far as camera technology is concerned. Each of these cameras have different body design with the Sigma DP1s being a Large Sensor Compact camera and the Sony a1 being a SLR-style mirrorless camera.

Before getting straight to a comprehensive comparison, here is a concise highlight of how the DP1s grades vs the a1 with regards to portability, imaging, features and an overall score.

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Reasons to pick Sigma DP1s over the Sony a1

 DP1s a1 

Reasons to pick Sony a1 over the Sigma DP1s

 a1 DP1s 
RevealedJanuary 2021October 2009More modern by 137 months
Display typeTiltingFixed Tilting display
Display dimensions3"2.5"Larger display (+0.5")
Display resolution1440k230kSharper display (+1210k dot)
Touch friendly display Easily navigate

Common features in the Sigma DP1s and Sony a1

 DP1s a1 
Focus manually More accurate focus
Selfie screen Neither includes selfie screen

Sigma DP1s vs Sony a1 Physical Comparison

For anyone who is planning to carry around your camera, you're going to have to think about its weight and volume. The Sigma DP1s features exterior dimensions of 109mm x 60mm x 31mm (4.3" x 2.4" x 1.2") along with a weight of 270 grams (0.60 lbs) while the Sony a1 has sizing of 129mm x 97mm x 70mm (5.1" x 3.8" x 2.8") and a weight of 737 grams (1.62 lbs).

Look at the Sigma DP1s and Sony a1 in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an Interchangeable Lens Camera will vary depending on the lens you are employing at that time. Here is a front view measurements comparison of the DP1s vs the a1.

Sigma DP1s vs Sony a1 size comparison

Taking into consideration dimensions and weight, the portability rating of the DP1s and a1 is 90 and 61 respectively.

Sigma DP1s vs Sony a1 top view buttons comparison

Sigma DP1s vs Sony a1 Sensor Comparison

Sometimes, it's tough to imagine the gap in sensor sizes just by viewing specs. The image below will offer you a greater sense of the sensor dimensions in the DP1s and a1.

As you can plainly see, both of the cameras have different resolutions and different sensor sizes. The DP1s using its smaller sensor is going to make shooting shallow DOF trickier and the Sony a1 will render extra detail using its extra 45 Megapixels. Greater resolution will help you crop images a bit more aggressively. The more aged DP1s will be disadvantaged with regard to sensor technology.

Sigma DP1s vs Sony a1 sensor size comparison

Sigma DP1s vs Sony a1 Screen and ViewFinder

Sigma DP1s vs Sony a1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sigma DP1s Portrait photography info
Sony a1 Portrait photography info
56
you can focus manually
good sensor size (APS-C)
delivers RAW files
sensor resolution low (5MP)
88
focusing manually
high flash sync (1/400 seconds)
fantastic resolution (50 megapixels)
sensor size is great (Full frame)
offers face detection autofocus
supports RAW files
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Street Comparison

Street photography with Sigma DP1s
Street photography with Sony a1
66
good sensor size (APS-C)
delivers RAW files
lighter than competition (270g)
fixed screen
lack of image stabilization
low max ISO (800)
79
screen tilts up and down
has image stabilization (Sensor based 5-axis)
sensor size is great (Full frame)
supports RAW files
has touch to focus
weather sealing
above average high ISO (32,000)
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Sports Comparison

Sigma DP1s as a Sports photography camera
Sony a1 as a Sports photography camera
32
good sensor size (APS-C)
can't change focal length (28mm)
lack of image stabilization
sensor resolution low (5MP)
no phase detect auto focus
90
high shutter speed (1/8,000 seconds)
quiet mode (1/32,000 seconds)
high fps (30.0 frames/s)
has image stabilization (Sensor based 5-axis)
fantastic resolution (50MP)
sensor size is great (Full frame)
offers tracking autofocus
weather sealing
good battery pack (530 CIPA)
has phase detect autofocus
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Travel Comparison

Sigma DP1s Travel photography factors
Sony a1 Travel photography factors
64
lighter than competition (270 grams)
built-in flash
good max aperture (f)
lack of Time Lapse recording
sensor resolution low (5 megapixels)
display isn't selfie friendly
73
good battery pack (530 shots)
weather sealing
supports bluetooth
has touch to focus
fantastic resolution (50MP)
display isn't selfie friendly
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Landscape Comparison

Sigma DP1s as a Landscape photography camera
Sony a1 as a Landscape photography camera
44
you can focus manually
good max aperture (f)
good sensor size (APS-C)
delivers RAW files
lens is fixed (fixed lens mount)
can't change focal length (28mm)
screen is somewhat small (2.5 inches)
lack of image stabilization
sensor resolution low (5MP)
low max ISO (800)
lack of Time Lapse recording
88
focusing manually
interchangeable lenses (Sony E mount)
screen size is good (3 inch)
has image stabilization (Sensor based 5-axis)
fantastic resolution (50MP)
sensor size is great (Full frame)
above average high ISO (32,000)
supports RAW files
weather sealing
good battery pack (530 CIPA)
two card slots
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Vlogging Comparison

Sigma DP1s Vlogging details
Sony a1 Vlogging details
9
lack of video recording
36
built-in touchscreen
has image stabilization (Sensor based 5-axis)
offers face detection autofocus
high quality video (7680 x 4320 pxls)
has external microphone socket
display isn't selfie friendly
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Sigma DP1s vs Sony a1 Specifications

Detailed spec comparison table for Sigma DP1s and Sony a1
 Sigma DP1sSony Alpha a1
General Information
Brand Sigma Sony
Model Sigma DP1s Sony Alpha a1
Class Large Sensor Compact Pro Mirrorless
Announced 2009-10-02 2021-01-26
Physical type Large Sensor Compact SLR-style mirrorless
Sensor Information
Sensor type CMOS (Foveon X3) BSI-CMOS
Sensor size APS-C Full frame
Sensor measurements 20.7 x 13.8mm 35.9 x 24mm
Sensor area 285.7mm² 861.6mm²
Sensor resolution 5 megapixel 50 megapixel
Anti aliasing filter
Aspect ratio 3:2 1:1, 4:3, 3:2 and 16:9
Max resolution 2640 x 1760 8640 x 5760
Max native ISO 800 32000
Max enhanced ISO - 102400
Min native ISO 100 100
RAW photos
Min enhanced ISO - 50
Autofocusing
Manual focus
Touch focus
Continuous AF
AF single
Tracking AF
Selective AF
Center weighted AF
AF multi area
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Number of focus points - 759
Lens
Lens mount fixed lens Sony E
Lens focal range 28mm (1x) -
Number of lenses - 133
Crop factor 1.7 1
Screen
Type of display Fixed Type Tilting
Display diagonal 2.5 inches 3 inches
Display resolution 230 thousand dots 1,440 thousand dots
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder None Electronic
Viewfinder resolution - 9,437 thousand dots
Viewfinder coverage - 100%
Viewfinder magnification - 0.9x
Features
Min shutter speed 30s 30s
Max shutter speed 1/4000s 1/8000s
Max quiet shutter speed - 1/32000s
Continuous shutter rate - 30.0 frames per second
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set WB
Image stabilization
Integrated flash
Flash range - no built-in flash
Flash settings - Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync
External flash
AE bracketing
White balance bracketing
Max flash synchronize - 1/400s
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Supported video resolutions - 7680x4320 (30p, 25p, 23.98)
Max video resolution None 7680x4320
Video data format Motion JPEG XAVC S, XAVC HS, H.264, H.265
Microphone port
Headphone port
Connectivity
Wireless None Built-In
Bluetooth
NFC
HDMI
USB USB 1.0 (1.5 Mbit/sec) Yes
GPS None None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 270 grams (0.60 pounds) 737 grams (1.62 pounds)
Physical dimensions 109 x 60 x 31mm (4.3" x 2.4" x 1.2") 129 x 97 x 70mm (5.1" x 3.8" x 2.8")
DXO scores
DXO Overall score not tested not tested
DXO Color Depth score not tested not tested
DXO Dynamic range score not tested not tested
DXO Low light score not tested not tested
Other
Battery life - 530 pictures
Form of battery - Battery Pack
Battery model - NP-FZ100
Self timer Yes (10 sec) Yes
Time lapse recording
Storage type SD/MMC card Dual SD/CFexpress Type A slots (UHS-II supported)
Card slots Single 2
Retail pricing $0 $6,498