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Ricoh PX vs Sigma SD1

Portability
95
Imaging
39
Features
36
Overall
37
Ricoh PX front
 
Sigma SD1 front
Portability
77
Imaging
55
Features
43
Overall
50

Ricoh PX vs Sigma SD1 Key Specs

Ricoh PX
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 2.7" Fixed Display
  • ISO 100 - 3200
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 28-140mm (F3.9-5.4) lens
  • 156g - 100 x 55 x 21mm
  • Launched August 2011
Sigma SD1
(Full Review)
  • 15MP - APS-C Sensor
  • 3" Fixed Screen
  • ISO 0 - 0
  • No Video
  • Sigma SA Mount
  • n/ag - 146 x 113 x 80mm
  • Announced September 2010
  • Newer Model is Sigma SD1 Merrill
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Ricoh PX vs Sigma SD1 Overview

Lets look a bit more in depth at the Ricoh PX vs Sigma SD1, former is a Small Sensor Compact while the latter is a Advanced DSLR by manufacturers Ricoh and Sigma. The sensor resolution of the PX (16MP) and the SD1 (15MP) is relatively comparable but the PX (1/2.3") and SD1 (APS-C) provide different sensor sizing.

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The PX was unveiled 11 months after the SD1 which means that they are of a similar age. Each of these cameras feature different body design with the Ricoh PX being a Compact camera and the Sigma SD1 being a Mid-size SLR camera.

Before delving straight to a comprehensive comparison, here is a quick view of how the PX scores vs the SD1 with regard to portability, imaging, features and an overall mark.

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Reasons to pick Ricoh PX over the Sigma SD1

 PX SD1 
AnnouncedAugust 2011September 2010Newer by 11 months

Reasons to pick Sigma SD1 over the Ricoh PX

 SD1 PX 
Screen size3"2.7"Bigger screen (+0.3")
Screen resolution460k230kClearer screen (+230k dot)

Common features in the Ricoh PX and Sigma SD1

 PX SD1 
Focus manually Dial precise focus
Screen typeFixed Fixed Fixed screen
Selfie screen Missing selfie screen
Touch friendly screen Missing Touch friendly screen

Ricoh PX vs Sigma SD1 Physical Comparison

When you are planning to travel with your camera often, you have to consider its weight and proportions. The Ricoh PX features external dimensions of 100mm x 55mm x 21mm (3.9" x 2.2" x 0.8") accompanied by a weight of 156 grams (0.34 lbs) while the Sigma SD1 has measurements of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") with a weight of n/a grams (0.00 lbs).

Check the Ricoh PX vs Sigma SD1 in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will change depending on the lens you have at the time. Below is a front view overall size comparison of the PX and the SD1.

Ricoh PX vs Sigma SD1 size comparison

Factoring in dimensions and weight, the portability rating of the PX and SD1 is 95 and 77 respectively.

Ricoh PX vs Sigma SD1 top view buttons comparison

Ricoh PX vs Sigma SD1 Sensor Comparison

More often than not, it is very tough to picture the gap in sensor dimensions simply by going through specs. The image underneath will help offer you a more clear sense of the sensor sizes in the PX and SD1.

All in all, both of these cameras feature different megapixels and different sensor dimensions. The PX using its smaller sensor is going to make shooting shallower DOF trickier and the Ricoh PX will show greater detail having an extra 1 Megapixels. Higher resolution can also enable you to crop shots way more aggressively. The more recent PX should have an advantage in sensor tech.

Ricoh PX vs Sigma SD1 sensor size comparison

Ricoh PX vs Sigma SD1 Screen and ViewFinder

Ricoh PX vs Sigma SD1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh PX Portrait photography information
Sigma SD1 Portrait photography information
43
manual focus
good MP (16MP)
comes with face detection autofocus
cannot use external flash
very small sensor (1/2.3")
lack of RAW files
65
has manual focus
megapixel count good (15MP)
sensor size is good (APS-C)
saves RAW formats
doesn't have liveview
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Street Comparison

Ricoh PX as a Street photography camera
Sigma SD1 as a Street photography camera
63
built in image stabilization (Sensor-shift)
environment proofing
fixed screen
very small sensor (1/2.3")
lack of RAW files
62
sensor size is good (APS-C)
saves RAW formats
environment proof
screen does not articulate
does not have image stabilization
maximum ISO low (0)
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Sports Comparison

Ricoh PX Sports photography highlights
Sigma SD1 Sports photography highlights
44
built in image stabilization (Sensor-shift)
good MP (16 megapixels)
comes with tracking autofocus
environment proofing
slow continuous shooting (1.0 fps)
no shutter priority mode
very small sensor (1/2.3")
lack of phase detect autofocus
56
megapixel count good (15 megapixels)
sensor size is good (APS-C)
environment proof
supports phase detect autofocus
doesn't have liveview
painfully slow continuous shooting (5.0 fps)
does not have image stabilization
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Travel Comparison

Ricoh PX Travel photography info
Sigma SD1 Travel photography info
68
environment proofing
good MP (16 megapixels)
built-in flash
quite wide (28mm)
no Timelapse recording
display isn't selfie friendly
slow maximum aperture (f3.9)
65
environment proof
megapixel count good (15 megapixels)
flash built-in
lack of Time Lapse mode
doesn't posses selfie friendly display
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Landscape Comparison

Ricoh PX Landscape photography details
Sigma SD1 Landscape photography details
47
manual focus
quite wide (28mm)
built in image stabilization (Sensor-shift)
good MP (16MP)
environment proofing
cannot change lens (fixed lens mount)
slow maximum aperture (f3.9)
tiny screen (2.7 inches)
very small sensor (1/2.3")
lack of RAW files
no Timelapse recording
61
has manual focus
interchangeable lenses (Sigma SA mount)
nice screen size (3 inch)
megapixel count good (15MP)
sensor size is good (APS-C)
saves RAW formats
environment proof
doesn't have liveview
does not have image stabilization
maximum ISO low (0)
lack of Time Lapse mode
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Vlogging Comparison

Ricoh PX Vlogging details
Sigma SD1 Vlogging details
31
quite wide (28mm)
built in image stabilization (Sensor-shift)
comes with face detection autofocus
slow maximum aperture (f3.9)
display isn't selfie friendly
low res video (1280 x 720 pxls)
no external microphone socket
9
can't shoot video
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Ricoh PX vs Sigma SD1 Specifications

Detailed spec comparison table for Ricoh PX and Sigma SD1
 Ricoh PXSigma SD1
General Information
Brand Ricoh Sigma
Model type Ricoh PX Sigma SD1
Category Small Sensor Compact Advanced DSLR
Launched 2011-08-16 2010-09-21
Physical type Compact Mid-size SLR
Sensor Information
Processor Smooth Imaging Engine IV Dual True II
Sensor type CCD CMOS (Foveon X3)
Sensor size 1/2.3" APS-C
Sensor dimensions 6.17 x 4.55mm 24 x 16mm
Sensor area 28.1mm² 384.0mm²
Sensor resolution 16 megapixels 15 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3 and 3:2 -
Highest resolution 4608 x 3072 4800 x 3200
Highest native ISO 3200 -
Minimum native ISO 100 -
RAW images
Autofocusing
Manual focusing
AF touch
AF continuous
Single AF
AF tracking
Selective AF
AF center weighted
Multi area AF
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points - 11
Cross type focus points - 2
Lens
Lens mount type fixed lens Sigma SA
Lens zoom range 28-140mm (5.0x) -
Largest aperture f/3.9-5.4 -
Macro focusing distance 3cm -
Available lenses - 76
Focal length multiplier 5.8 1.5
Screen
Type of display Fixed Type Fixed Type
Display diagonal 2.7" 3"
Resolution of display 230 thousand dots 460 thousand dots
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder type None Optical (pentaprism)
Viewfinder coverage - 96%
Viewfinder magnification - 0.64x
Features
Slowest shutter speed 8 secs 15 secs
Maximum shutter speed 1/2000 secs 1/2000 secs
Continuous shooting rate 1.0 frames/s 5.0 frames/s
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Set WB
Image stabilization
Integrated flash
Flash distance 3.50 m -
Flash modes Auto, On, Off, Red-Eye, Slow Sync -
Hot shoe
AEB
WB bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 1280 x 720 (30 fps), 640 x 480 (30fps) -
Highest video resolution 1280x720 None
Video file format Motion JPEG -
Mic support
Headphone support
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 156 gr (0.34 lb) -
Physical dimensions 100 x 55 x 21mm (3.9" x 2.2" x 0.8") 146 x 113 x 80mm (5.7" x 4.4" x 3.1")
DXO scores
DXO All around rating not tested not tested
DXO Color Depth rating not tested not tested
DXO Dynamic range rating not tested not tested
DXO Low light rating not tested not tested
Other
Battery ID DB-100 -
Self timer Yes (2, 10 or Custom) Yes
Time lapse recording
Storage type SD/SDHC card, Internal Compact Flash (Type I, UDMA compatible)
Card slots Single Single
Retail cost $329 $2,339