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Ricoh GR Digital III vs Sigma fp

Portability
92
Imaging
34
Features
35
Overall
34
Ricoh GR Digital III front
 
Sigma fp front
Portability
84
Imaging
76
Features
79
Overall
77

Ricoh GR Digital III vs Sigma fp Key Specs

Ricoh GR Digital III
(Full Review)
  • 10MP - 1/1.7" Sensor
  • 3" Fixed Screen
  • ISO 64 - 1600
  • 640 x 480 video
  • 28mm (F1.9) lens
  • 208g - 109 x 59 x 26mm
  • Revealed July 2009
  • Replacement is Ricoh GR Digital IV
Sigma fp
(Full Review)
  • 25MP - Full frame Sensor
  • 3.2" Fixed Display
  • ISO 100 - 25600 (Increase to 102400)
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Leica L Mount
  • 422g - 113 x 70 x 45mm
  • Revealed July 2019
  • New Model is Sigma fp L
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Ricoh GR Digital III vs Sigma fp Overview

Here is a extensive assessment of the Ricoh GR Digital III and Sigma fp, one being a Small Sensor Compact and the other is a Advanced Mirrorless by brands Ricoh and Sigma. There exists a sizeable gap among the resolutions of the GR Digital III (10MP) and fp (25MP) and the GR Digital III (1/1.7") and fp (Full frame) boast different sensor dimensions.

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The GR Digital III was unveiled 11 years before the fp and that is a fairly large gap as far as camera technology is concerned. The two cameras feature different body design with the Ricoh GR Digital III being a Compact camera and the Sigma fp being a Rangefinder-style mirrorless camera.

Before we go into a more detailed comparison, here is a simple view of how the GR Digital III grades vs the fp in the way of portability, imaging, features and an overall rating.

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Reasons to pick Ricoh GR Digital III over the Sigma fp

 GR Digital III fp 

Reasons to pick Sigma fp over the Ricoh GR Digital III

 fp GR Digital III 
RevealedJuly 2019July 2009Fresher by 121 months
Display size3.2"3"Larger display (+0.2")
Display resolution2100k920kSharper display (+1180k dot)
Touch friendly display Easily navigate

Common features in the Ricoh GR Digital III and Sigma fp

 GR Digital III fp 
Manual focus More exact focus
Display typeFixed Fixed Fixed display
Selfie screen Neither contains selfie screen

Ricoh GR Digital III vs Sigma fp Physical Comparison

In case you're intending to carry your camera, you have to think about its weight and size. The Ricoh GR Digital III has got outside dimensions of 109mm x 59mm x 26mm (4.3" x 2.3" x 1.0") having a weight of 208 grams (0.46 lbs) while the Sigma fp has specifications of 113mm x 70mm x 45mm (4.4" x 2.8" x 1.8") along with a weight of 422 grams (0.93 lbs).

See the Ricoh GR Digital III and Sigma fp in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an Interchangeable Lens Camera will differ based on the lens you are using at the time. Following is a front view size comparison of the GR Digital III compared to the fp.

Ricoh GR Digital III vs Sigma fp size comparison

Looking at dimensions and weight, the portability score of the GR Digital III and fp is 92 and 84 respectively.

Ricoh GR Digital III vs Sigma fp top view buttons comparison

Ricoh GR Digital III vs Sigma fp Sensor Comparison

More often than not, it's difficult to imagine the contrast in sensor sizing purely by viewing specs. The photograph below will help provide you a clearer sense of the sensor dimensions in the GR Digital III and fp.

All in all, the 2 cameras come with different megapixel count and different sensor sizing. The GR Digital III having a smaller sensor is going to make getting shallow depth of field trickier and the Sigma fp will result in more detail having an extra 15 Megapixels. Greater resolution will also enable you to crop images a good deal more aggressively. The older GR Digital III will be behind with regard to sensor innovation.

Ricoh GR Digital III vs Sigma fp sensor size comparison

Ricoh GR Digital III vs Sigma fp Screen and ViewFinder

Ricoh GR Digital III vs Sigma fp Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Ricoh GR Digital III as a Portrait photography camera
Sigma fp as a Portrait photography camera
40
focusing manually
exports RAW files
low MP (10MP)
sensor size is very small (1/1.7")
85
you can focus manually
sensor resolution is excellent (25 megapixels)
sensor size is great (Full frame)
comes with face detection focusing
delivers RAW formats
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Street Comparison

Ricoh GR Digital III as a Street photography camera
Sigma fp as a Street photography camera
55
exports RAW files
no moving screen
does not have image stabilization
sensor size is very small (1/1.7")
77
sensor size is great (Full frame)
delivers RAW formats
features focus via touch
weather sealing
good ISO range (25,600)
fixed screen
does not have image stabilization
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Sports Comparison

Ricoh GR Digital III Sports photography features
Sigma fp Sports photography features
17
can't change focal length (28mm)
does not have image stabilization
low MP (10MP)
sensor size is very small (1/1.7")
lacks phase detect autofocus
73
great max shutter speed (1/8,000 seconds)
sensor resolution is excellent (25MP)
sensor size is great (Full frame)
comes with tracking autofocus
weather sealing
does not have image stabilization
does not have phase detect AF
Photography Glossary

Travel Comparison

Travel photography with Ricoh GR Digital III
Travel photography with Sigma fp
63
has built in flash
good max aperture (f1.9)
low MP (10MP)
doesn't contain selfie friendly screen
78
weather sealing
features focus via touch
sensor resolution is excellent (25MP)
does not have selfie friendly screen
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Landscape Comparison

Ricoh GR Digital III as a Landscape photography camera
Sigma fp as a Landscape photography camera
45
focusing manually
good max aperture (f1.9)
pretty good screen size (3 inches)
exports RAW files
fixed lens (fixed lens mount)
can't change focal length (28mm)
does not have image stabilization
low MP (10 megapixels)
sensor size is very small (1/1.7")
83
you can focus manually
swap lenses (Leica L mount)
pretty good screen size (3.2 inches)
sensor resolution is excellent (25MP)
sensor size is great (Full frame)
good ISO range (25,600)
delivers RAW formats
weather sealing
does not have image stabilization
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Vlogging Comparison

Ricoh GR Digital III Vlogging features
Sigma fp Vlogging features
25
good max aperture (f1.9)
doesn't contain selfie friendly screen
does not have image stabilization
low res video (640 x 480 pixels)
missing microphone jack
37
built-in touchscreen
comes with face detection focusing
video resolution high (3840 x 2160 pxls)
comes with external microphone jack
does not have selfie friendly screen
does not have image stabilization
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Ricoh GR Digital III vs Sigma fp Specifications

Detailed spec comparison table for Ricoh GR Digital III and Sigma fp
 Ricoh GR Digital IIISigma fp
General Information
Manufacturer Ricoh Sigma
Model type Ricoh GR Digital III Sigma fp
Type Small Sensor Compact Advanced Mirrorless
Revealed 2009-07-27 2019-07-11
Body design Compact Rangefinder-style mirrorless
Sensor Information
Chip GR engine III -
Sensor type CCD BSI-CMOS
Sensor size 1/1.7" Full frame
Sensor measurements 7.44 x 5.58mm 35.9 x 23.9mm
Sensor surface area 41.5mm² 858.0mm²
Sensor resolution 10 megapixels 25 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3 and 3:2 1:1, 4:3, 3:2 and 16:9
Max resolution 3648 x 2736 6000 x 4000
Max native ISO 1600 25600
Max enhanced ISO - 102400
Min native ISO 64 100
RAW format
Min enhanced ISO - 6
Autofocusing
Manual focusing
Autofocus touch
Autofocus continuous
Single autofocus
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Multi area autofocus
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Total focus points - 49
Lens
Lens support fixed lens Leica L
Lens zoom range 28mm (1x) -
Maximal aperture f/1.9 -
Macro focusing range 1cm -
Amount of lenses - 30
Crop factor 4.8 1
Screen
Range of screen Fixed Type Fixed Type
Screen size 3" 3.2"
Resolution of screen 920 thousand dot 2,100 thousand dot
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder type Optical (optional) None
Features
Minimum shutter speed 1 secs 30 secs
Fastest shutter speed 1/2000 secs 1/8000 secs
Continuous shutter speed - 12.0fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Integrated flash
Flash distance 3.00 m no built-in flash
Flash settings Auto, On, Off, Red-Eye, Slow Sync, Manual no built-in flash
Hot shoe
Auto exposure bracketing
WB bracketing
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) 3840 x 2160 @ 30p, MOV, H.264, Linear PCM
Max video resolution 640x480 3840x2160
Video data format - MPEG-4, H.264
Microphone input
Headphone input
Connectivity
Wireless None No
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) Yes
GPS None None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 208 grams (0.46 lb) 422 grams (0.93 lb)
Physical dimensions 109 x 59 x 26mm (4.3" x 2.3" x 1.0") 113 x 70 x 45mm (4.4" x 2.8" x 1.8")
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 - BP-51
Self timer Yes (2 or 10 sec) Yes (2 or 10 wec)
Time lapse recording
Storage media SD/SDHC, Internal SD/SDHC/SDXC (UHS-II supported)
Storage slots One One
Price at release $399 $2,050