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Nikon D7100 vs Pentax K100D

Portability
59
Imaging
65
Features
80
Overall
71
Nikon D7100 front
 
Pentax K100D front
Portability
64
Imaging
45
Features
36
Overall
41

Nikon D7100 vs Pentax K100D Key Specs

Nikon D7100
(Full Review)
  • 24MP - APS-C Sensor
  • 3.2" Fixed Screen
  • ISO 100 - 6400 (Raise to 25600)
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 1920 x 1080 video
  • Nikon F Mount
  • 765g - 136 x 107 x 76mm
  • Announced April 2013
  • Superseded the Nikon D7000
  • Later Model is Nikon D7200
Pentax K100D
(Full Review)
  • 6MP - APS-C Sensor
  • 2.5" Fixed Display
  • ISO 200 - 3200
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF Mount
  • 660g - 129 x 93 x 70mm
  • Announced December 2006
  • Updated by Pentax K100D S
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Nikon D7100 vs Pentax K100D Overview

Here is a detailed overview of the Nikon D7100 and Pentax K100D, one being a Advanced DSLR and the other is a Entry-Level DSLR by rivals Nikon and Pentax. There is a big difference among the sensor resolutions of the D7100 (24MP) and K100D (6MP) but they come with the same exact sensor measurements (APS-C).

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The D7100 was revealed 6 years later than the K100D and that is a fairly big gap as far as camera tech is concerned. Each of these cameras offer different body type with the Nikon D7100 being a Mid-size SLR camera and the Pentax K100D being a Compact SLR camera.

Before getting through a complete comparison, below is a quick summary of how the D7100 scores versus the K100D with regards to portability, imaging, features and an overall rating.

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Reasons to pick Nikon D7100 over the Pentax K100D

 D7100 K100D 
AnnouncedApril 2013December 2006Fresher by 78 months
Display sizing3.2"2.5"Larger display (+0.7")
Display resolution1229k210kSharper display (+1019k dot)

Reasons to pick Pentax K100D over the Nikon D7100

 K100D D7100 

Common features in the Nikon D7100 and Pentax K100D

 D7100 K100D 
Focus manually More precise focus
Display typeFixed Fixed Fixed display
Selfie screen Missing selfie screen
Touch display Missing Touch display

Nikon D7100 vs Pentax K100D Physical Comparison

For anyone who is looking to carry your camera regularly, you will need to take into account its weight and volume. The Nikon D7100 offers physical measurements of 136mm x 107mm x 76mm (5.4" x 4.2" x 3.0") with a weight of 765 grams (1.69 lbs) while the Pentax K100D has sizing of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") along with a weight of 660 grams (1.46 lbs).

See the Nikon D7100 and Pentax K100D in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Bear in mind, the weight of an Interchangeable Lens Camera will vary dependant on the lens you have attached during that time. Below is the front view size comparison of the D7100 against the K100D.

Nikon D7100 vs Pentax K100D size comparison

Factoring in size and weight, the portability rating of the D7100 and K100D is 59 and 64 respectively.

Nikon D7100 vs Pentax K100D top view buttons comparison

Nikon D7100 vs Pentax K100D Sensor Comparison

Oftentimes, it's hard to imagine the difference in sensor sizing merely by looking through specifications. The photograph underneath may provide you a much better sense of the sensor sizing in the D7100 and K100D.

To sum up, each of these cameras enjoy the same exact sensor sizing but different resolution. You should expect to see the Nikon D7100 to provide you with more detail because of its extra 18MP. Greater resolution will allow you to crop images far more aggressively. The fresher D7100 provides an advantage when it comes to sensor innovation.

Nikon D7100 vs Pentax K100D sensor size comparison

Nikon D7100 vs Pentax K100D Screen and ViewFinder

Nikon D7100 vs Pentax K100D Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Nikon D7100 as a Portrait photography camera
Pentax K100D as a Portrait photography camera
79
focusing manually
good resolution (24 megapixels)
sensor size is decent (APS-C)
has face detect focus
exports RAW files
51
has manual focus
sensor size is nice (APS-C)
supports RAW files
doesn't have liveview
low resolution sensor (6 megapixels)
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Street Comparison

Nikon D7100 Street photography info
Pentax K100D Street photography info
60
sensor size is decent (APS-C)
exports RAW files
weather proof
screen is fixed
does not have image stabilization
58
has image stabilization (Sensor based)
sensor size is nice (APS-C)
supports RAW files
screen does not articulate
more heavy than average in class (660g)
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Sports Comparison

Nikon D7100 Sports photography features
Pentax K100D Sports photography features
70
max shutter speed is good (1/8,000 seconds)
good resolution (24MP)
sensor size is decent (APS-C)
has tracking focus
weather proof
has phase detect auto focus
low fps (6.0 frames/s)
does not have image stabilization
47
has image stabilization (Sensor based)
sensor size is nice (APS-C)
has phase detect auto focus
doesn't have liveview
very slow continuous shooting (3.0 frames/s)
low resolution sensor (6 megapixels)
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Travel Comparison

Nikon D7100 Travel photography features
Pentax K100D Travel photography features
66
weather proof
good resolution (24MP)
flash built-in
display isn't selfie friendly
42
flash built-in
doesn't have Timelapse recording
more heavy than average in class (660 grams)
low resolution sensor (6 megapixels)
screen isn't selfie friendly
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Landscape Comparison

Nikon D7100 Landscape photography info
Pentax K100D Landscape photography info
76
focusing manually
switch lenses (Nikon F mount)
pretty good screen size (3.2 inch)
good resolution (24MP)
sensor size is decent (APS-C)
does not have low pass filter
exports RAW files
weather proof
2 card slots
does not have image stabilization
52
has manual focus
change lenses (Pentax KAF mount)
has image stabilization (Sensor based)
sensor size is nice (APS-C)
supports RAW files
screen is somewhat small (2.5 inches)
doesn't have liveview
low resolution sensor (6MP)
doesn't have Timelapse recording
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Vlogging Comparison

Nikon D7100 Vlogging factors
Pentax K100D Vlogging factors
30
has face detect focus
high res video (1920 x 1080 resolution)
has mic support
display isn't selfie friendly
does not have image stabilization
9
no video shooting
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Nikon D7100 vs Pentax K100D Specifications

Detailed spec comparison table for Nikon D7100 and Pentax K100D
 Nikon D7100Pentax K100D
General Information
Company Nikon Pentax
Model Nikon D7100 Pentax K100D
Class Advanced DSLR Entry-Level DSLR
Announced 2013-04-25 2006-12-03
Body design Mid-size SLR Compact SLR
Sensor Information
Sensor type CMOS CCD
Sensor size APS-C APS-C
Sensor measurements 23.5 x 15.6mm 23.5 x 15.7mm
Sensor area 366.6mm² 369.0mm²
Sensor resolution 24 megapixel 6 megapixel
Anti aliasing filter
Aspect ratio 3:2 and 16:9 3:2
Max resolution 6000 x 4000 3008 x 2008
Max native ISO 6400 3200
Max enhanced ISO 25600 -
Lowest native ISO 100 200
RAW data
Autofocusing
Manual focus
Touch to focus
Autofocus continuous
Autofocus single
Tracking autofocus
Selective autofocus
Autofocus center weighted
Multi area autofocus
Autofocus live view
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points 51 11
Cross focus points 15 -
Lens
Lens mounting type Nikon F Pentax KAF
Amount of lenses 309 151
Focal length multiplier 1.5 1.5
Screen
Screen type Fixed Type Fixed Type
Screen diagonal 3.2 inch 2.5 inch
Screen resolution 1,229 thousand dot 210 thousand dot
Selfie friendly
Liveview
Touch operation
Screen tech Wide Viewing Angle TFT-LCD monitor -
Viewfinder Information
Viewfinder type Optical (pentaprism) Optical (pentamirror)
Viewfinder coverage 100% 96%
Viewfinder magnification 0.63x 0.57x
Features
Min shutter speed 30 secs 30 secs
Max shutter speed 1/8000 secs 1/4000 secs
Continuous shutter speed 6.0 frames/s 3.0 frames/s
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
Image stabilization
Built-in flash
Flash range 12.00 m (at ISO 100) -
Flash settings Auto, On, Off, Red-eye, Slow sync, Rear curtain Auto, On, Off, Red-eye reduction
External flash
Auto exposure bracketing
White balance bracketing
Max flash sync 1/250 secs 1/180 secs
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1920 x 1080 (60, 50, 25, 24 fps), 1280 x 720 (60, 50 fps), 640 x 424 (30, 24 fps) -
Max video resolution 1920x1080 None
Video format MPEG-4, H.264 -
Microphone jack
Headphone jack
Connectivity
Wireless Optional None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS Optional None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 765 grams (1.69 lbs) 660 grams (1.46 lbs)
Dimensions 136 x 107 x 76mm (5.4" x 4.2" x 3.0") 129 x 93 x 70mm (5.1" x 3.7" x 2.8")
DXO scores
DXO Overall score 83 not tested
DXO Color Depth score 24.2 not tested
DXO Dynamic range score 13.7 not tested
DXO Low light score 1256 not tested
Other
Battery life 950 images -
Type of battery Battery Pack -
Battery model EN-EL15 4 x AA
Self timer Yes (2 or 10 seconds) Yes (2 or 12 sec)
Time lapse shooting
Type of storage SD/SDHC/SDXC x 2 slots SD/MMC card
Storage slots Dual Single
Launch price $800 $0