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Pentax K100D S vs Pentax RS1500

Portability
65
Imaging
45
Features
38
Overall
42
Pentax K100D Super front
 
Pentax Optio RS1500 front
Portability
93
Imaging
37
Features
30
Overall
34

Pentax K100D S vs Pentax RS1500 Key Specs

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
  • Succeeded the Pentax K100D
  • New Model is Pentax K200D
Pentax RS1500
(Full Review)
  • 14MP - 1/2.3" Sensor
  • 2.7" Fixed Screen
  • ISO 80 - 6400
  • 1280 x 720 video
  • 28-110mm (F3.5-5.5) lens
  • 157g - 114 x 58 x 28mm
  • Released March 2011
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Pentax K100D S vs Pentax RS1500 Overview

Below is a thorough comparison of the Pentax K100D S vs Pentax RS1500, one being a Entry-Level DSLR and the latter is a Small Sensor Compact and they are both offered by Pentax. There is a big difference between the image resolutions of the K100D S (6MP) and RS1500 (14MP) and the K100D S (APS-C) and RS1500 (1/2.3") enjoy totally different sensor size.

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The K100D S was manufactured 4 years earlier than the RS1500 and that is quite a big gap as far as tech is concerned. Both cameras come with different body type with the Pentax K100D S being a Compact SLR camera and the Pentax RS1500 being a Compact camera.

Before getting in to a thorough comparison, below is a quick highlight of how the K100D S scores vs the RS1500 in regards to portability, imaging, features and an overall grade.

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Reasons to pick Pentax K100D S over the Pentax RS1500

 K100D S RS1500 

Reasons to pick Pentax RS1500 over the Pentax K100D S

 RS1500 K100D S 
ReleasedMarch 2011June 2007More recent by 45 months
Screen dimension2.7"2.5"Bigger screen (+0.2")
Screen resolution230k210kClearer screen (+20k dot)

Common features in the Pentax K100D S and Pentax RS1500

 K100D S RS1500 
Focus manually More accurate focusing
Screen typeFixed Fixed Fixed screen
Selfie screen No selfie screen
Touch screen Neither offers Touch screen

Pentax K100D S vs Pentax RS1500 Physical Comparison

If you're looking to lug around your camera often, you need to take into account its weight and proportions. The Pentax K100D S offers physical measurements of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") accompanied by a weight of 646 grams (1.42 lbs) and the Pentax RS1500 has measurements of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") having a weight of 157 grams (0.35 lbs).

See the Pentax K100D S vs Pentax RS1500 in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you select at that time. The following is the front view overall size comparison of the K100D S compared to the RS1500.

Pentax K100D S vs Pentax RS1500 size comparison

Looking at size and weight, the portability rating of the K100D S and RS1500 is 65 and 93 respectively.

Pentax K100D S vs Pentax RS1500 top view buttons comparison

Pentax K100D S vs Pentax RS1500 Sensor Comparison

Usually, its tough to visualise the difference between sensor measurements simply by reading through technical specs. The graphic below should give you a stronger sense of the sensor measurements in the K100D S and RS1500.

As you can tell, each of these cameras posses different megapixel count and different sensor measurements. The K100D S due to its bigger sensor will make achieving shallow DOF simpler and the Pentax RS1500 will give more detail due to its extra 8 Megapixels. Higher resolution will also make it easier to crop shots somewhat more aggressively. The older K100D S is going to be behind with regard to sensor tech.

Pentax K100D S vs Pentax RS1500 sensor size comparison

Pentax K100D S vs Pentax RS1500 Screen and ViewFinder

Pentax K100D S vs Pentax RS1500 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax K100D S as a Portrait photography camera
Pentax RS1500 as a Portrait photography camera
51
manual focus
sensor size is nice (APS-C)
delivers RAW files
no liveview feature
sensor resolution low (6 megapixels)
35
manual focus
resolution is good (14MP)
lack of manual mode
cannot use external flash
tiny sensor (1/2.3")
no RAW files
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Street Comparison

Street photography with Pentax K100D S
Street photography with Pentax RS1500
64
built in image stabilization (Sensor based)
sensor size is nice (APS-C)
delivers RAW files
no articulating screen
54
environment sealing
fixed screen
lack of image stabilization
tiny sensor (1/2.3")
no RAW files
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Sports Comparison

Pentax K100D S Sports photography highlights
Pentax RS1500 Sports photography highlights
47
built in image stabilization (Sensor based)
sensor size is nice (APS-C)
sensor has phase detect auto focus
no liveview feature
painfully slow continuous shooting (3.0 frames/s)
sensor resolution low (6MP)
37
resolution is good (14MP)
offers tracking focus
environment sealing
low fps (1.0 frames per second)
lack of shutter priority mode
lack of image stabilization
tiny sensor (1/2.3")
no phase detect autofocus
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Travel Comparison

Pentax K100D S as a Travel photography camera
Pentax RS1500 as a Travel photography camera
45
built-in flash
lack of Time Lapse mode
sensor resolution low (6MP)
screen isn't selfie friendly
67
environment sealing
resolution is good (14MP)
built-in flash
quite wide (28mm)
lack of Timelapse recording
doesn't have a selfie friendly display
somewhat slow maximum aperture (f3.5)
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Landscape Comparison

Landscape photography with Pentax K100D S
Landscape photography with Pentax RS1500
52
manual focus
swap lenses (Pentax KAF2 mount)
built in image stabilization (Sensor based)
sensor size is nice (APS-C)
delivers RAW files
screen is small (2.5 inch)
no liveview feature
sensor resolution low (6 megapixels)
lack of Time Lapse mode
40
manual focus
quite wide (28mm)
resolution is good (14 megapixels)
environment sealing
cannot swap lens (fixed lens mount)
somewhat slow maximum aperture (f3.5)
screen is small (2.7 inches)
lack of manual mode
lack of image stabilization
tiny sensor (1/2.3")
no RAW files
lack of Timelapse recording
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Vlogging Comparison

Pentax K100D S Vlogging info
Pentax RS1500 Vlogging info
9
can't record video
25
quite wide (28mm)
somewhat slow maximum aperture (f3.5)
doesn't have a selfie friendly display
lack of image stabilization
video res low (1280 x 720 resolution)
lack of microphone support
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Pentax K100D S vs Pentax RS1500 Specifications

Detailed spec comparison table for Pentax K100D S and Pentax RS1500
 Pentax K100D SuperPentax Optio RS1500
General Information
Company Pentax Pentax
Model Pentax K100D Super Pentax Optio RS1500
Class Entry-Level DSLR Small Sensor Compact
Revealed 2007-06-28 2011-03-16
Physical type Compact SLR Compact
Sensor Information
Sensor type CCD CCD
Sensor size APS-C 1/2.3"
Sensor measurements 23.5 x 15.7mm 6.17 x 4.55mm
Sensor area 369.0mm² 28.1mm²
Sensor resolution 6 megapixel 14 megapixel
Anti aliasing filter
Aspect ratio 3:2 4:3, 3:2 and 16:9
Highest resolution 3008 x 2008 4288 x 3216
Highest native ISO 3200 6400
Min native ISO 200 80
RAW support
Autofocusing
Manual focus
Autofocus touch
Autofocus continuous
Autofocus single
Tracking autofocus
Selective autofocus
Autofocus center weighted
Multi area autofocus
Autofocus live view
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Number of focus points 11 9
Lens
Lens mounting type Pentax KAF2 fixed lens
Lens focal range - 28-110mm (3.9x)
Highest aperture - f/3.5-5.5
Macro focus range - 1cm
Available lenses 151 -
Focal length multiplier 1.5 5.8
Screen
Type of display Fixed Type Fixed Type
Display diagonal 2.5 inch 2.7 inch
Display resolution 210k dots 230k dots
Selfie friendly
Liveview
Touch display
Display tech - TFT color LCD with Anti-reflective coating
Viewfinder Information
Viewfinder Optical (pentamirror) None
Viewfinder coverage 96 percent -
Viewfinder magnification 0.57x -
Features
Slowest shutter speed 30 seconds 4 seconds
Maximum shutter speed 1/4000 seconds 1/1500 seconds
Continuous shooting rate 3.0fps 1.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes -
Set white balance
Image stabilization
Integrated flash
Flash range - 3.90 m
Flash settings Auto, On, Off, Red-eye reduction Auto, On, Off, Red-eye, Soft
External flash
AE bracketing
White balance bracketing
Maximum flash synchronize 1/180 seconds -
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions - 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps)
Highest video resolution None 1280x720
Video format - Motion JPEG
Microphone 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 proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 646g (1.42 lb) 157g (0.35 lb)
Dimensions 129 x 91 x 71mm (5.1" x 3.6" x 2.8") 114 x 58 x 28mm (4.5" x 2.3" x 1.1")
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 life - 260 photos
Style of battery - Battery Pack
Battery model 4 x AA D-LI92
Self timer Yes (2 or 12 sec) Yes (2 or 10 sec)
Time lapse feature
Storage type SD/SDHC card SD/SDHC/SDXC, Internal
Card slots 1 1
Retail pricing $520 $150