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Ricoh PX vs Sigma DP1

Portability
95
Imaging
39
Features
36
Overall
37
Ricoh PX front
 
Sigma DP1 front
Portability
87
Imaging
43
Features
30
Overall
37

Ricoh PX vs Sigma DP1 Key Specs

Ricoh PX
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 3200
  • Sensor-shift Image Stabilization
  • 1280 x 720 video
  • 28-140mm (F3.9-5.4) lens
  • 156g - 100 x 55 x 21mm
  • Announced August 2011
Sigma DP1
(Full Review)
  • 5MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 100 - 800
  • No Video
  • 28mm (F) lens
  • 270g - 113 x 60 x 50mm
  • Announced May 2008
  • Replacement is Sigma DP1s
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Ricoh PX vs Sigma DP1 Overview

Let's take a deeper look at the Ricoh PX versus Sigma DP1, one is a Small Sensor Compact and the other is a Large Sensor Compact by brands Ricoh and Sigma. There is a significant difference among the sensor resolutions of the PX (16MP) and DP1 (5MP) and the PX (1/2.3") and DP1 (APS-C) boast totally different sensor size.

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The PX was unveiled 3 years after the DP1 which is a fairly sizable gap as far as camera tech is concerned. Both of the cameras feature different body design with the Ricoh PX being a Compact camera and the Sigma DP1 being a Large Sensor Compact camera.

Before going right into a comprehensive comparison, here is a quick synopsis of how the PX matches up against the DP1 in the way of portability, imaging, features and an overall score.

Photography Glossary
	
	

Reasons to pick Ricoh PX over the Sigma DP1

 PX DP1 
AnnouncedAugust 2011May 2008More modern by 40 months
Display size2.7"2.5"Larger display (+0.2")

Reasons to pick Sigma DP1 over the Ricoh PX

 DP1 PX 

Common features in the Ricoh PX and Sigma DP1

 PX DP1 
Manually focus Very exact focus
Display typeFixed Fixed Fixed display
Display resolution230k230kThe same display resolution
Selfie screen Neither features selfie screen
Touch friendly display Lack of Touch friendly display

Ricoh PX vs Sigma DP1 Physical Comparison

For those who are going to carry around your camera often, you will need to think about its weight and dimensions. The Ricoh PX enjoys physical measurements of 100mm x 55mm x 21mm (3.9" x 2.2" x 0.8") having a weight of 156 grams (0.34 lbs) while the Sigma DP1 has dimensions of 113mm x 60mm x 50mm (4.4" x 2.4" x 2.0") accompanied by a weight of 270 grams (0.60 lbs).

Look at the Ricoh PX versus Sigma DP1 in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember that, the weight of an Interchangeable Lens Camera will vary dependant on the lens you choose at the time. Underneath is a front view sizing comparison of the PX versus the DP1.

Ricoh PX vs Sigma DP1 size comparison

Taking into consideration size and weight, the portability score of the PX and DP1 is 95 and 87 respectively.

Ricoh PX vs Sigma DP1 top view buttons comparison

Ricoh PX vs Sigma DP1 Sensor Comparison

Often, it is very difficult to visualise the difference in sensor sizes simply by checking out a spec sheet. The pic below should offer you a far better sense of the sensor measurements in the PX and DP1.

As you can see, the 2 cameras come with different megapixels and different sensor sizes. The PX having a smaller sensor will make achieving shallow DOF more difficult and the Ricoh PX will produce extra detail having an extra 11MP. Greater resolution will allow you to crop photos a good deal more aggressively. The younger PX is going to have an edge when it comes to sensor tech.

Ricoh PX vs Sigma DP1 sensor size comparison

Ricoh PX vs Sigma DP1 Screen and ViewFinder

Ricoh PX vs Sigma DP1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh PX as a Portrait photography camera
Sigma DP1 as a Portrait photography camera
43
you can focus manually
decent sensor resolution (16 megapixels)
offers face detection autofocus
can't use external flash
small sensor size (1/2.3")
has no RAW support
55
focusing manually
good sensor size (APS-C)
delivers RAW formats
low resolution sensor (5MP)
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Street Comparison

Ricoh PX as a Street photography camera
Sigma DP1 as a Street photography camera
63
built in image stabilization (Sensor-shift)
environment sealing
no moving screen
small sensor size (1/2.3")
has no RAW support
64
good sensor size (APS-C)
delivers RAW formats
lighter than competition in class (270 grams)
no moving screen
lack of image stabilization
maximum ISO low (800)
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Sports Comparison

Ricoh PX Sports photography info
Sigma DP1 Sports photography info
44
built in image stabilization (Sensor-shift)
decent sensor resolution (16MP)
offers tracking autofocus
environment sealing
painfully slow continuous shooting (1.0 fps)
no shutter priority mode
small sensor size (1/2.3")
has no phase detect autofocus
31
good sensor size (APS-C)
fixed focal length (28mm)
lack of image stabilization
low resolution sensor (5 megapixels)
lack of phase detect AF
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Travel Comparison

Travel photography with Ricoh PX
Travel photography with Sigma DP1
68
environment sealing
decent sensor resolution (16MP)
built-in flash
reasonably wide (28mm)
missing Time Lapse function
doesn't contain selfie friendly screen
sluggish max aperture (f3.9)
63
lighter than competition in class (270 grams)
has built in flash
great maximum aperture (f)
lack of Time Lapse recording
low resolution sensor (5MP)
does not offer selfie friendly screen
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Landscape Comparison

Ricoh PX as a Landscape photography camera
Sigma DP1 as a Landscape photography camera
47
you can focus manually
reasonably wide (28mm)
built in image stabilization (Sensor-shift)
decent sensor resolution (16MP)
environment sealing
fixed lens (fixed lens mount)
sluggish max aperture (f3.9)
small screen (2.7")
small sensor size (1/2.3")
has no RAW support
missing Time Lapse function
44
focusing manually
great maximum aperture (f)
good sensor size (APS-C)
delivers RAW formats
lens is fixed (fixed lens mount)
fixed focal length (28mm)
screen is small (2.5")
lack of image stabilization
low resolution sensor (5MP)
maximum ISO low (800)
lack of Time Lapse recording
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Vlogging Comparison

Ricoh PX as a Vlogging camera
Sigma DP1 as a Vlogging camera
31
reasonably wide (28mm)
built in image stabilization (Sensor-shift)
offers face detection autofocus
sluggish max aperture (f3.9)
doesn't contain selfie friendly screen
video res low (1280 x 720 pixels)
missing external mic port
9
can't record video
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Ricoh PX vs Sigma DP1 Specifications

Detailed spec comparison table for Ricoh PX and Sigma DP1
 Ricoh PXSigma DP1
General Information
Make Ricoh Sigma
Model type Ricoh PX Sigma DP1
Type Small Sensor Compact Large Sensor Compact
Announced 2011-08-16 2008-05-19
Physical type Compact Large Sensor Compact
Sensor Information
Powered by Smooth Imaging Engine IV -
Sensor type CCD CMOS (Foveon X3)
Sensor size 1/2.3" APS-C
Sensor dimensions 6.17 x 4.55mm 20.7 x 13.8mm
Sensor area 28.1mm² 285.7mm²
Sensor resolution 16MP 5MP
Anti alias filter
Aspect ratio 1:1, 4:3 and 3:2 3:2
Max resolution 4608 x 3072 2640 x 1760
Max native ISO 3200 800
Minimum native ISO 100 100
RAW photos
Autofocusing
Manual focusing
Touch to focus
Continuous AF
AF single
AF tracking
Selective AF
Center weighted AF
AF multi area
AF live view
Face detection AF
Contract detection AF
Phase detection AF
Lens
Lens support fixed lens fixed lens
Lens zoom range 28-140mm (5.0x) 28mm (1x)
Maximum aperture f/3.9-5.4 -
Macro focusing distance 3cm -
Focal length multiplier 5.8 1.7
Screen
Screen type Fixed Type Fixed Type
Screen size 2.7" 2.5"
Screen resolution 230 thousand dots 230 thousand dots
Selfie friendly
Liveview
Touch function
Viewfinder Information
Viewfinder type None None
Features
Minimum shutter speed 8 seconds 30 seconds
Fastest shutter speed 1/2000 seconds 1/4000 seconds
Continuous shutter rate 1.0 frames per second -
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set WB
Image stabilization
Built-in flash
Flash distance 3.50 m -
Flash options Auto, On, Off, Red-Eye, Slow Sync -
External flash
Auto exposure bracketing
White balance bracketing
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 1280 x 720 (30 fps), 640 x 480 (30fps) -
Max video resolution 1280x720 None
Video data format Motion JPEG -
Mic support
Headphone support
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 1.0 (1.5 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 156 gr (0.34 lbs) 270 gr (0.60 lbs)
Physical dimensions 100 x 55 x 21mm (3.9" x 2.2" x 0.8") 113 x 60 x 50mm (4.4" x 2.4" x 2.0")
DXO scores
DXO Overall 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 (10 sec)
Time lapse recording
Storage type SD/SDHC card, Internal SD/MMC card
Card slots Single Single
Launch pricing $329 $566