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Pentax 645D vs Pentax K-m

6.14 in
4.61 in
Pentax 645D Digital Camera
Pentax 645D
4.82 in
2.66 in
Pentax K-m Digital Camera
Pentax K-m
Available colors
Editiorial reviews
9
4.3 out of 5
5 user ratings
5 stars
60 %
4 stars
40 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
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
4.2 out of 5
38 user ratings
5 stars
34 %
4 stars
50 %
3 stars
15 %
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

Pentax 645DPentax 645D
Pentax K-mPentax K-m
Sensor typeCCDCCD
Image sensor formatMedium formatAPS-C
Sensor size1.73 in0.93 in
Sensor photo detectors40.0 Mpx11.0 Mpx
Effective pixels40.0 Mpx10.0 Mpx
Image ratio w:h4:33:2
Max resolution7264 x 5440 px3872 x 2592 px

Image

Pentax 645DPentax 645D
Pentax K-mPentax K-m
ISO
  • 100
  • 1600
  • 100
  • 1600
ISO Autoyesyes
ISO minimum100100
ISO maximum16003200
White balance presets88
White balance modes
  • Auto
  • Cloudy
  • Daylight
  • Fluorescent
  • Manual
  • Shade
  • Tungsten
  • Auto
  • Cloudy
  • Daylight
  • Flash
  • Fluorescent
  • Manual
Custom white balanceyesyes
Image stabilization typeNoSensor-shift
Uncompressed formatRAWRAW

Optics and focus

Pentax 645DPentax 645D
Pentax K-mPentax K-m
Lens mountPentax 645AF2Pentax KAF2
Focus adjustmentAutoAuto
Focal length multiplier1x1.5x
Autofocus
  • Phase Detect
  • Multi-area
  • Selective single-point
  • Single
  • Continuous
  • Live View
  • Continuous Auto Focus
  • Single Auto Focus
  • Spot Auto Focus
Manual focusyesyes
Number of focus points115
Filter diameter2.64 in2.05 in

Screen and viewfinder

Pentax 645DPentax 645D
Pentax K-mPentax K-m
Screen size3.0 in2.7 in
Articulated LCDnono
Screen technologyLCD TFTLCD
Screen dots921000230000
Touch screennono
Viewfinder
Optical
Optical
Viewfinder coverage98.0 %96.0 %
Viewfinder magnification0.17 x0.85 x

Photography features

Pentax 645DPentax 645D
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
  • 1/2
  • 1/3
AE EV steps
  • 1/7
  • 1/5
  • 1/3
  • 1/2
  • 2/3
  • 1
  • 1/3
  • 1/2
Subject / scene modesnono
Built-in flashnoyes
Flash modes
  • Auto
  • Flash ON
  • Flash OFF
  • Redeye Reduction
  • Slow Sync
  • Rear-curtain Sync
  • Auto
  • Redeye Reduction
External flashyesyes
Continuous drive1.1 fps3.5 fps
Self-timeryesyes
Metering modes
  • Multi
  • Center-weighted
  • Spot
  • Multi
  • Center-weighted
  • Spot
Self-timer options
  • 2
  • 10
  • 2
  • 12

Videography features

Pentax 645DPentax 645D
Pentax K-mPentax K-m
Video recordingnono

Design

Pentax 645DPentax 645D
Pentax K-mPentax K-m
Body typeSLRSLR
Colour of productBlackBlack
Environmentally sealedyesno

Dimensions

Pentax 645DPentax 645D
Pentax K-mPentax K-m
Weight49.38 oz20.81 oz
Width6.14 in4.82 in
Height4.61 in2.66 in
Depth4.69 in3.6 in

Storage

Pentax 645DPentax 645D
Pentax K-mPentax K-m
Compatible memory cards
  • SD
  • SDHC
SD
Storage types
  • SD
  • SDHC
  • SD
  • SDHC

Connectivity

Pentax 645DPentax 645D
Pentax K-mPentax K-m
HDMIyesno
USB version2.02.0
Remote controlyesyes

Other features

Pentax 645DPentax 645D
Pentax K-mPentax K-m
Timelapse recordingyesno
GPSnono
Orientation sensoryesno

Pros & Cons

Pros
      Cons

          Often compared with Pentax 645D