Nikon D3X Vs Pentax 645D Medium Format Vs Nikon D3S Comparison
ProductsD3X
Nikon D3X
645D Medium Format
Pentax 645D Medium Format
D3S
Nikon D3S
Prices


Whirlwire Rating319891219832431
Storage
Storage SlotCF
  • SD
  • SDHC
CF
Storage Slot Amount2 1 2
Sensor
Max Resolution6048 x 4032 7264 x 5440 4256 x 2832
Other Resolutions
  • 5056 x 403
  • 4544 x 3024
  • 3968 x 2640
  • 3792 x 3024
  • 3024 x 2016
  • 2528 x 2016
  • 1984 x 1320
N/A
  • 3552 x 2832
  • 3552 x 2368
  • 3184 x 2128
  • 2784 x 1848
  • 2656 x 1776
  • 2128 x 1416
  • 2080 x 1384
  • 1776 x 1416
  • 1776 x 1184
  • 1392 x 920
Image Ratio3:2 4:3
  • 5:4
  • 3:2
Megapixels24.5 40.0 12.1
SizeFull frame (35.9 x 24 mm) Medium format (44 x 33 mm) Full frame (36 x 23.9 mm)
TypeCMOS CCD CMOS
ProcessorExpeed Prime II Expeed
Screen / Viewfinder
Screen Size3.0 3.0 3.0
Screen Pixels920,000 921,000 921,000
Screen TypeTFT LCD TFT LCD TFT LCD
Live View N/A
Viewfinder TypeOptical (pentaprism) Optical (pentaprism) Optical (pentaprism)
Viewfinder Coverage100% 98% 100%
Viewfinder magnification0.7x 0.85 0.7x
Physical
Weather Sealed
BatteryBattery Pack Battery Pack Battery Pack
Battery ModelLithium-Ion EN-EL4a Lithium-Ion D-LI90 Lithium-Ion EN-EL4a
Battery Life (shots)4,400 550 4,200
Weight (grams)1,260 1,480 1,240
Dimensions160 x 157 x 88 mm 156 x 117 x 119 mm 160 x 157 x 88 mm
Optics & Focus
Autofocus
  • Contrast Detect (sensor)
  • Phase Detect
  • Multi-area
  • Selective single-point
  • Single
  • Continuous
  • Live View
  • Phase Detect
  • Multi-area
  • Selective single-point
  • Single
  • Continuous
  • Live View
  • Contrast Detect (sensor)
  • Phase Detect
  • Multi-area
  • Selective single-point
  • Single
  • Continuous
  • Live View
Manual Focus
Number of Focus Points51 11 51
Lens MountNikon F mount Pentax 645AF2 Nikon F mount
Crop1.0x 1 1.0x
Image
ISO Range100-1600 200-1600 200-12800
ISO Minimum50 100 100
ISO Maximum6,400 1,600 102,400
White Balance Presets12 8 12
Custom White Balance
Uncompressed FormatRAW RAW RAW
JPEG Quality Levels
  • Fine
  • Normal
  • Basic
  • Good
  • Best
Fine
File FormatNEF PEF NEF
Image StabilisationN/A N/A
Features
Minimum shutter speed30 sec 30 sec 30 sec
Maximum shutter speed1/8000 sec 1/4000 sec 1/8000 sec
Aperture Priority
Shutter Priority
Manual Exposure Mode
External Flash
Flash Modes
  • Auto
  • On
  • Off
  • Red-Eye
  • Slow Sync
  • Rear Curtain
  • Auto
  • On
  • Off
  • Red-Eye
  • Slow Sync
  • Rear Curtain
  • Front curtain
  • Rear Curtain
  • Red-Eye
  • Slow Sync
Flash X Sync Speed1/250 sec 1/125 sec 1/250 sec
FPS5 1 11
Self-timer
Exposure Compensation±5 (at 1/3 EV, 1/2 EV, 1 EV steps) ±5 (at 1/3 EV - 1/2 EV steps) ±5 (at 1/3 EV, 1/2 EV, 1 EV steps)
AE Bracketing2, 3, 5, 7 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV steps ±3 (2, 3, 5, 7 frames at 1/3 EV, 1/2 EV, 2/3 EV, 1 EV steps)
WB BracketingYes (2 to 9 frames either blue/amber or magenta/green axis) N/A Yes (2 to 9 frames in either blue/amber or magenta/green axis)
Orientation Sensor
Timelapse Recording
GPSOptional N/A Optional
Metering ModesN/A
  • Multi
  • Center-weighted
  • Spot
N/A
Connectivity
USB
HDMI N/A
Remote Control
Body Type
Body TypeLarge SLR Large SLR Large SLR
Video Features
MicrophoneN/A Stereo
SpeakerN/A Mono
ResolutionsN/A 1080p @ 24fps
  • 720p @ 24fps
  • 424p @ 24fps
  • 216p @ 24fps
FormatN/A N/A MP4
External mic inputN/A N/A
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