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Nikon D7100 vs Pentax K-3

Portability
59
Imaging
65
Features
80
Overall
71
Nikon D7100 front
 
Pentax K-3 front
Portability
59
Imaging
66
Features
85
Overall
73

Nikon D7100 vs Pentax K-3 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 Max Shutter
  • 1920 x 1080 video
  • Nikon F Mount
  • 765g - 136 x 107 x 76mm
  • Announced April 2013
  • Previous Model is Nikon D7000
  • Successor is Nikon D7200
Pentax K-3
(Full Review)
  • 24MP - APS-C Sensor
  • 3.2" Fixed Display
  • ISO 100 - 51200
  • Sensor based Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Pentax KAF2 Mount
  • 800g - 131 x 100 x 77mm
  • Introduced April 2014
  • Updated by Pentax K-3 II
Photography Glossary

Nikon D7100 vs Pentax K-3 Overview

Below, we are evaluating the Nikon D7100 versus Pentax K-3, both Advanced DSLR cameras by companies Nikon and Pentax. The sensor resolution of the D7100 (24MP) and the K-3 (24MP) is fairly comparable and they possess the exact same sensor dimensions (APS-C).

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The D7100 was manufactured 11 months earlier than the K-3 and they are both of a similar generation. The two cameras come with the identical body type (Mid-size SLR).

Before going in to a full comparison, below is a concise overview of how the D7100 grades versus the K-3 when considering portability, imaging, features and an overall grade.

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Reasons to pick Nikon D7100 over the Pentax K-3

 D7100 K-3 
Display resolution1229k1037kClearer display (+192k dot)

Reasons to pick Pentax K-3 over the Nikon D7100

 K-3 D7100 
IntroducedApril 2014April 2013More recent by 11 months

Common features in the Nikon D7100 and Pentax K-3

 D7100 K-3 
Focus manually More precise focusing
Display typeFixed Fixed Fixed display
Display dimension3.2"3.2"Identical display sizing
Selfie screen Neither offers selfie screen
Touch friendly display Neither offers Touch friendly display

Nikon D7100 vs Pentax K-3 Physical Comparison

For anybody who is going to lug around your camera regularly, you will have to factor its weight and measurements. The Nikon D7100 offers outside dimensions of 136mm x 107mm x 76mm (5.4" x 4.2" x 3.0") with a weight of 765 grams (1.69 lbs) and the Pentax K-3 has proportions of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") accompanied by a weight of 800 grams (1.76 lbs).

Look at the Nikon D7100 versus Pentax K-3 in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an Interchangeable Lens Camera will change based on the lens you have at that moment. Here is the front view measurements comparison of the D7100 against the K-3.

Nikon D7100 vs Pentax K-3 size comparison

Using dimensions and weight, the portability grade of the D7100 and K-3 is 59 and 59 respectively.

Nikon D7100 vs Pentax K-3 top view buttons comparison

Nikon D7100 vs Pentax K-3 Sensor Comparison

Normally, it is difficult to picture the difference in sensor measurements merely by checking out specs. The photograph below may give you a stronger sense of the sensor dimensions in the D7100 and K-3.

As you can plainly see, both the cameras posses the exact same sensor measurements and the same megapixels and you should expect comparable quality of images however you have to take the production date of the cameras into account. The older D7100 will be behind in sensor technology.

Nikon D7100 vs Pentax K-3 sensor size comparison

Nikon D7100 vs Pentax K-3 Screen and ViewFinder

Nikon D7100 vs Pentax K-3 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Nikon D7100 Portrait photography info
Pentax K-3 Portrait photography info
79
manual focus
resolution is good (24 megapixels)
sensor size is nice (APS-C)
includes face detection focusing
exports RAW files
79
has manual focus
decent sensor resolution (24MP)
sensor size is good (APS-C)
includes face detect autofocus
saves RAW files
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Street Comparison

Nikon D7100 Street photography highlights
Pentax K-3 Street photography highlights
60
sensor size is nice (APS-C)
exports RAW files
environment proof
screen is fixed
no image stabilization
69
image stabilization (Sensor based)
sensor size is good (APS-C)
saves RAW files
environment proofing
great high ISO (51,200)
no moving screen
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Sports Comparison

Nikon D7100 Sports photography factors
Pentax K-3 Sports photography factors
70
maximum shutter speed is high (1/8,000 seconds)
resolution is good (24MP)
sensor size is nice (APS-C)
includes tracking autofocus
environment proof
sensor has phase detect AF
low frames per second (6.0 frames per second)
no image stabilization
76
high shutter speed (1/8,000 seconds)
image stabilization (Sensor based)
decent sensor resolution (24 megapixels)
sensor size is good (APS-C)
includes tracking focus
environment proofing
sensor has phase detect autofocus
low battery (560 per charge)
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Travel Comparison

Travel photography with Nikon D7100
Travel photography with Pentax K-3
66
environment proof
resolution is good (24MP)
built-in flash
display isn't selfie friendly
60
environment proofing
decent sensor resolution (24 megapixels)
built-in flash
low battery (560 CIPA)
doesn't have a selfie friendly screen
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Landscape Comparison

Landscape photography with Nikon D7100
Landscape photography with Pentax K-3
76
manual focus
switch lenses (Nikon F mount)
pretty good screen size (3.2")
resolution is good (24 megapixels)
sensor size is nice (APS-C)
doesnt have low pass filter
exports RAW files
environment proof
two card slots
no image stabilization
78
has manual focus
swap lenses (Pentax KAF2 mount)
screen size is good (3.2 inch)
image stabilization (Sensor based)
decent sensor resolution (24 megapixels)
sensor size is good (APS-C)
does not have low pass filter
great high ISO (51,200)
saves RAW files
environment proofing
2 card slots
low battery (560 per charge)
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Vlogging Comparison

Vlogging with Nikon D7100
Vlogging with Pentax K-3
30
includes face detection focusing
high quality video (1920 x 1080 pxls)
includes external microphone socket
display isn't selfie friendly
no image stabilization
34
image stabilization (Sensor based)
includes face detect autofocus
good video quality (1920 x 1080 pixels)
includes microphone support
doesn't have a selfie friendly screen
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Nikon D7100 vs Pentax K-3 Specifications

Detailed spec comparison table for Nikon D7100 and Pentax K-3
 Nikon D7100Pentax K-3
General Information
Brand Name Nikon Pentax
Model Nikon D7100 Pentax K-3
Class Advanced DSLR Advanced DSLR
Announced 2013-04-25 2014-04-10
Physical type Mid-size SLR Mid-size SLR
Sensor Information
Processor - Prime III
Sensor type CMOS CMOS
Sensor size APS-C APS-C
Sensor measurements 23.5 x 15.6mm 23.5 x 15.6mm
Sensor area 366.6mm² 366.6mm²
Sensor resolution 24MP 24MP
Anti aliasing filter
Aspect ratio 3:2 and 16:9 3:2
Highest resolution 6000 x 4000 6016 x 4000
Highest native ISO 6400 51200
Highest boosted ISO 25600 -
Minimum native ISO 100 100
RAW files
Autofocusing
Manual focus
AF touch
AF continuous
Single AF
AF tracking
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 51 27
Cross focus points 15 25
Lens
Lens mount Nikon F Pentax KAF2
Available lenses 309 151
Focal length multiplier 1.5 1.5
Screen
Type of screen Fixed Type Fixed Type
Screen size 3.2 inch 3.2 inch
Resolution of screen 1,229k dots 1,037k dots
Selfie friendly
Liveview
Touch display
Screen tech Wide Viewing Angle TFT-LCD monitor TFT LCD monitor
Viewfinder Information
Viewfinder type Optical (pentaprism) Optical (pentaprism)
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.63x 0.64x
Features
Slowest shutter speed 30s 30s
Maximum shutter speed 1/8000s 1/8000s
Continuous shooting rate 6.0 frames per sec 8.0 frames per sec
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Set WB
Image stabilization
Integrated flash
Flash range 12.00 m (at ISO 100) 13.00 m (at ISO 100)
Flash settings Auto, On, Off, Red-eye, Slow sync, Rear curtain Auto, on, off, red-eye, slow sync, slow sync + red-eye, trailing curtain sync, high speed, wireless, manual
Hot shoe
AEB
WB bracketing
Maximum flash synchronize 1/250s 1/180s
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) 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p)
Highest video resolution 1920x1080 1920x1080
Video format MPEG-4, H.264 MPEG-4, H.264
Microphone support
Headphone support
Connectivity
Wireless Optional None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.0 (5 GBit/sec)
GPS Optional Optional
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 765 grams (1.69 lb) 800 grams (1.76 lb)
Dimensions 136 x 107 x 76mm (5.4" x 4.2" x 3.0") 131 x 100 x 77mm (5.2" x 3.9" x 3.0")
DXO scores
DXO All around score 83 80
DXO Color Depth score 24.2 23.7
DXO Dynamic range score 13.7 13.4
DXO Low light score 1256 1216
Other
Battery life 950 pictures 560 pictures
Style of battery Battery Pack Battery Pack
Battery model EN-EL15 D-LI90
Self timer Yes (2 or 10 seconds) Yes ( 2 or 12 seconds)
Time lapse shooting
Type of storage SD/SDHC/SDXC x 2 slots Dual SD/SDHC/SDXC
Card slots Two Two
Pricing at launch $800 $639