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Nikon D810A vs Pentax K-m

5.75 in
4.84 in
Nikon D810A Digital Camera
Nikon D810A
4.82 in
2.66 in
Pentax K-m Digital Camera
Pentax K-m
Available colors
Editiorial reviews
5
5 editorial reviews
Nikon D810A is a 36.0MP Advanced DSLR camera with a Full frame sized CMOS sensor and Nikon F mount. Read our D810A review to find its pros and cons.Read more
In May of 2015 Nikon provided me with their brand new D810A to give it a workout for landscape astrophotography. I wrote an article for their Image Chaser blog, and this is my personal review of the camera The Short Answer In my experience the D810A matches the high ISO performance of the D750.  The [Read More]Read more
Has Nikon introduced an astrophotographer's dream machine in the new D810A? Read our Nikon D810A preview to find out?Read more
Read editorial reviews
14
3.7 out of 5
9 user ratings
5 stars
22 %
4 stars
44 %
3 stars
22 %
2 stars
11 %
1 stars
0 %
Read editorial reviews
User rating
38
4.5 out of 5
38 user ratings
5 stars
52 %
4 stars
44 %
3 stars
2 %
2 stars
0 %
1 stars
0 %
44
4.2 out of 5
44 user ratings
5 stars
43 %
4 stars
34 %
3 stars
22 %
2 stars
0 %
1 stars
0 %

Full Comparison

Sensor

Nikon D810ANikon D810A
Pentax K-mPentax K-m
Sensor typeCMOSCCD
Image sensor formatFull frameAPS-C
Sensor size1.41 in0.93 in
Sensor photo detectors37.0 Mpx11.0 Mpx
Effective pixels36.0 Mpx10.0 Mpx
Image ratio w:h
  • 5:4
  • 3:2
3:2
Max resolution7360 x 4912 px3872 x 2592 px
Other resolutions
  • 5520x3680
  • 3680x2456
  • 6144x4080
  • 4608x3056
  • 3072x2040
  • 6144x4912
  • 4608x3680
  • 3072x2456
  • 4800x3200
  • 3600x2400
  • 2400x1600
  • 3008x2000
  • 1824x1216

Image

Nikon D810ANikon D810A
Pentax K-mPentax K-m
ISO
  • 200
  • 12800
  • 51200
  • 100
  • 1600
ISO minimum200100
ISO maximum512003200
Maximum image resolution7360 x 4912 px3872 x 2592 px
White balance presets128
White balance modes
  • Auto
  • Custom modes
  • Fluorescent
  • Incandescent
  • Manual
  • Shade
  • Sunny
  • Auto
  • Cloudy
  • Daylight
  • Flash
  • Fluorescent
  • Manual
Custom white balanceyesyes
Photo effects
  • Black&White
  • Neutral
  • Vivid
  • Black&White
  • Sepia
Image stabilization typeNoSensor-shift
Uncompressed formatRAW + TIFFRAW

Optics and focus

Nikon D810ANikon D810A
Pentax K-mPentax K-m
Lens mountNikon FPentax KAF2
Focus adjustmentManualAuto
Focal length multiplier1x1.5x
Autofocus
  • Continuous Auto Focus
  • Servo Auto Focus
  • Single Auto Focus
  • Tracking Auto Focus
  • Continuous Auto Focus
  • Single Auto Focus
  • Spot Auto Focus
Manual focusyesyes
Number of focus points515

Screen and viewfinder

Nikon D810ANikon D810A
Pentax K-mPentax K-m
Screen size3.2 in2.7 in
Articulated LCDnono
Screen technologyLCD TFTLCD
Screen dots1229000230000
Touch screennono
Live viewyesno
ViewfinderOptical
Optical
Viewfinder coverage100.0 %96.0 %
Viewfinder magnification0.7 x0.85 x

Photography features

Nikon D810ANikon D810A
Pentax K-mPentax K-m
Minimum shutter speed30.0 s30.0 s
Maximum shutter speed1.0 s1.0 s
Shutter priorityyesyes
Aperture priorityyesyes
Manual exposure modeyesyes
Exposure compensation plus52
Exposure compensation minus-5-2
Expousure compensation steps
  • 1/3
  • 1/2
  • 1
  • 1/2
  • 1/3
AE EV steps
  • 1/3
  • 2/3
  • 1
  • 1/3
  • 1/2
Histogramyesyes
Subject / scene modesnono
Built-in flashyesyes
Flash range1211
Flash modes
  • Auto
  • Flash OFF
  • Redeye Reduction
  • Second-curtain Sync
  • Slow Sync
  • Auto
  • Redeye Reduction
External flashyesyes
Continuous drive5.0 fps3.5 fps
Scene modes
  • Portrait
  • Landscape
  • Close-up
  • Museum
  • Night portrait
  • Portrait
  • Sunset
  • Landscape
Self-timeryesyes
Metering modes
  • Multi
  • Center-weighted
  • Highlight-weighted
  • Spot
  • Multi
  • Center-weighted
  • Spot
Self-timer options
  • 2
  • 5
  • 10
  • 20
  • 2
  • 12

Videography features

Nikon D810ANikon D810A
Pentax K-mPentax K-m
Video recordingyesno

Design

Nikon D810ANikon D810A
Pentax K-mPentax K-m
Body typeSLRSLR
Colour of productBlackBlack
Environmentally sealedyesno

Dimensions

Nikon D810ANikon D810A
Pentax K-mPentax K-m
Weight31.04 oz20.81 oz
Width5.75 in4.82 in
Height4.84 in2.66 in
Depth3.21 in3.6 in

Storage

Nikon D810ANikon D810A
Pentax K-mPentax K-m
Compatible memory cards
  • CF
  • SD
  • SDHC
  • SDXC
SD
Storage types
  • SD
  • SDHC
  • SDXC
  • Compact Flash
  • SD
  • SDHC

Connectivity

Nikon D810ANikon D810A
Pentax K-mPentax K-m
HDMIyesno
USB version3.12.0
Remote controlyesyes

Other features

Nikon D810ANikon D810A
Pentax K-mPentax K-m
Timelapse recordingyesno
GPSnono

Pros & Cons

Pros
      Cons

          Often compared with Nikon D810A