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Epson R-D1x vs Pentax K100D S

Portability
75
Imaging
46
Features
19
Overall
35
Epson R-D1x front
 
Pentax K100D Super front
Portability
65
Imaging
45
Features
38
Overall
42

Epson R-D1x vs Pentax K100D S Key Specs

Epson R-D1x
(Full Review)
  • 6MP - APS-C Sensor
  • 2.5" Fixed Screen
  • ISO 200 - 1600
  • No Video
  • Leica M Mount
  • 620g - 142 x 89 x 40mm
  • Introduced February 2009
  • Previous Model is Epson R-D1
Pentax K100D S
(Full Review)
  • 6MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 200 - 3200
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 646g - 129 x 91 x 71mm
  • Revealed June 2007
  • Replaced the Pentax K100D
  • Renewed by Pentax K200D
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Epson R-D1x vs Pentax K100D S Overview

Here, we are evaluating the Epson R-D1x and Pentax K100D S, former is a Advanced Mirrorless while the other is a Entry-Level DSLR by competitors Epson and Pentax. The sensor resolution of the R-D1x (6MP) and the K100D S (6MP) is fairly similar and both cameras provide the identical sensor sizes (APS-C).

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The R-D1x was released 21 months after the K100D S making them a generation away from one another. Both cameras feature different body design with the Epson R-D1x being a Rangefinder-style mirrorless camera and the Pentax K100D S being a Compact SLR camera.

Before going straight to a full comparison, here is a concise view of how the R-D1x scores against the K100D S with regards to portability, imaging, features and an overall mark.

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Reasons to pick Epson R-D1x over the Pentax K100D S

 R-D1x K100D S 
RevealedFebruary 2009June 2007Newer by 21 months
Display resolution235k210kSharper display (+25k dot)

Reasons to pick Pentax K100D S over the Epson R-D1x

 K100D S R-D1x 

Common features in the Epson R-D1x and Pentax K100D S

 R-D1x K100D S 
Focus manually More exact focusing
Display typeFixed Fixed Fixed display
Display size2.5"2.5"Same display dimensions
Selfie screen Neither features selfie screen
Touch friendly display No Touch friendly display

Epson R-D1x vs Pentax K100D S Physical Comparison

When you are planning to travel with your camera, you will want to factor its weight and proportions. The Epson R-D1x enjoys outer measurements of 142mm x 89mm x 40mm (5.6" x 3.5" x 1.6") and a weight of 620 grams (1.37 lbs) while the Pentax K100D S has measurements of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") and a weight of 646 grams (1.42 lbs).

Check out the Epson R-D1x and Pentax K100D S in our brand new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an ILC will change depending on the lens you choose at that time. Underneath is a front view physical size comparison of the R-D1x against the K100D S.

Epson R-D1x vs Pentax K100D S size comparison

Looking at dimensions and weight, the portability score of the R-D1x and K100D S is 75 and 65 respectively.

Epson R-D1x vs Pentax K100D S top view buttons comparison

Epson R-D1x vs Pentax K100D S Sensor Comparison

Typically, it can be difficult to picture the difference between sensor dimensions only by reading a spec sheet. The pic here might offer you a clearer sense of the sensor measurements in the R-D1x and K100D S.

As you can see, both the cameras feature the identical sensor size and the identical resolution therefore you can expect similar quality of photos though you will want to take the age of the products into consideration. The newer R-D1x provides an advantage when it comes to sensor technology.

Epson R-D1x vs Pentax K100D S sensor size comparison

Epson R-D1x vs Pentax K100D S Screen and ViewFinder

Epson R-D1x vs Pentax K100D S Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Epson R-D1x Portrait photography factors
Pentax K100D S Portrait photography factors
47
you can focus manually
good sensor size (APS-C)
delivers RAW files
doesn't have liveview
no manual control
low MP (6MP)
51
manual focus
sensor size is decent (APS-C)
exports RAW files
no liveview
megapixel count low (6 megapixels)
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Street Comparison

Epson R-D1x Street photography factors
Pentax K100D S Street photography factors
56
good sensor size (APS-C)
delivers RAW files
fixed screen
does not have image stabilization
heavier than competition (620 grams)
64
has image stabilization (Sensor based)
sensor size is decent (APS-C)
exports RAW files
screen is fixed
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Sports Comparison

Epson R-D1x as a Sports photography camera
Pentax K100D S as a Sports photography camera
31
good sensor size (APS-C)
doesn't have liveview
no shutter priority
does not have image stabilization
low MP (6MP)
no phase detect auto focus
47
has image stabilization (Sensor based)
sensor size is decent (APS-C)
comes with phase detect auto focus
no liveview
very slow continuous shooting (3.0 fps)
megapixel count low (6MP)
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Travel Comparison

Travel photography with Epson R-D1x
Travel photography with Pentax K100D S
39
missing Time Lapse function
heavier than competition (620g)
low MP (6MP)
does not have a selfie friendly screen
45
flash built-in
lack of Time Lapse mode
megapixel count low (6MP)
doesn't posses selfie friendly screen
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Landscape Comparison

Epson R-D1x Landscape photography features
Pentax K100D S Landscape photography features
45
you can focus manually
swap lenses (Leica M mount)
good sensor size (APS-C)
delivers RAW files
screen is somewhat small (2.5 inches)
doesn't have liveview
no manual control
does not have image stabilization
low MP (6MP)
missing Time Lapse function
52
manual focus
change lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
sensor size is decent (APS-C)
exports RAW files
screen is somewhat small (2.5")
no liveview
megapixel count low (6MP)
lack of Time Lapse mode
Photography Glossary

Vlogging Comparison

Epson R-D1x Vlogging advice
Pentax K100D S Vlogging advice
9
lack of video recording
9
lack of video recording
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Epson R-D1x vs Pentax K100D S Specifications

Detailed spec comparison table for Epson R-D1x and Pentax K100D S
 Epson R-D1xPentax K100D Super
General Information
Brand Epson Pentax
Model Epson R-D1x Pentax K100D Super
Class Advanced Mirrorless Entry-Level DSLR
Introduced 2009-02-27 2007-06-28
Physical type Rangefinder-style mirrorless Compact SLR
Sensor Information
Sensor type CCD CCD
Sensor size APS-C APS-C
Sensor dimensions 23.7 x 15.6mm 23.5 x 15.7mm
Sensor area 369.7mm² 369.0mm²
Sensor resolution 6 megapixel 6 megapixel
Anti aliasing filter
Aspect ratio 3:2 3:2
Maximum resolution 3008 x 2000 3008 x 2008
Maximum native ISO 1600 3200
Lowest native ISO 200 200
RAW photos
Autofocusing
Manual focus
Touch focus
Continuous autofocus
Autofocus single
Autofocus tracking
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points - 11
Lens
Lens mount Leica M Pentax KAF2
Number of lenses 59 151
Crop factor 1.5 1.5
Screen
Type of screen Fixed Type Fixed Type
Screen sizing 2.5" 2.5"
Screen resolution 235 thousand dots 210 thousand dots
Selfie friendly
Liveview
Touch display
Viewfinder Information
Viewfinder Optical (rangefinder) Optical (pentamirror)
Viewfinder coverage - 96%
Viewfinder magnification - 0.57x
Features
Lowest shutter speed 1s 30s
Highest shutter speed 1/2000s 1/4000s
Continuous shooting rate - 3.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation - Yes
Set white balance
Image stabilization
Built-in flash
Flash range no built-in flash -
Flash settings - Auto, On, Off, Red-eye reduction
Hot shoe
AEB
WB bracketing
Highest flash synchronize - 1/180s
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Maximum video resolution None None
Video file format Motion JPEG -
Mic port
Headphone port
Connectivity
Wireless None None
Bluetooth
NFC
HDMI
USB none USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 620 grams (1.37 lb) 646 grams (1.42 lb)
Physical dimensions 142 x 89 x 40mm (5.6" x 3.5" x 1.6") 129 x 91 x 71mm (5.1" x 3.6" x 2.8")
DXO scores
DXO All around 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 model - 4 x AA
Self timer No Yes (2 or 12 sec)
Time lapse shooting
Storage type SD/SDHC card SD/SDHC card
Card slots One One
Launch price $1,709 $520