Do you want to know what's better Pentax 645D or Sigma DP1x? SpecsPRO has compared Pentax 645D vs Sigma DP1x: weight, battery, sensor, resolution, ISO, dynamic range and other important specifications.

Pentax 645D vs Sigma DP1x

  • Main

  • Model

  • Price

  • launch

  • Announced

  • Body type

  • Camera subcategory

  • Sensor

  • Effective pixels

  • Max resolution

  • Sensor size

  • Sensor type

  • Processor

  • Image ratio w:h

  • Sensor photo detectors

  • Other resolutions

  • Image

  • ISO

  • Boosted ISO (minimum)

  • White balance presets

  • Custom white balance

  • Image stabilization

  • Uncompressed format

  • JPEG quality levels

  • Boosted ISO (maximum)

  • Photography features

  • Minimum shutter speed

  • Maximum shutter speed

  • Aperture priority

  • Shutter priority

  • Manual exposure mode

  • Subject / scene modes

  • Built-in flash

  • External flash

  • Flash modes

  • Continuous drive

  • Self-timer

  • Metering modes

  • Exposure compensation

  • AE Bracketing

  • Screen / viewfinder

  • Articulated LCD

  • Screen size

  • Screen dots

  • Touch screen

  • Screen type

  • Viewfinder type

  • Viewfinder coverage

  • Viewfinder magnification

  • Live view

  • Videography features

  • Microphone

  • Speaker

  • Optics & Focus

  • Autofocus

  • Digital zoom

  • Manual focus

  • Number of focus points

  • Lens mount

  • Focal length multiplier

  • Focal length (equiv.)

  • Optical zoom

  • Maximum aperture

  • Normal focus range

  • Physical

  • Weight (inc. batteries)

  • Dimensions

  • Environmentally sealed

  • Battery

  • Battery details

  • Storage

  • Storage types

  • Storage included

  • Connectivity

  • USB

  • Remote control

  • HDMI

  • Other features

  • Orientation sensor

  • Timelapse recording

  • GPS

  • Samples

  • Videos

Pentax 645D
Sigma DP1x
  • launch

  • Announced

    Mar 10, 2010

  • Body type

  • Camera subcategory

    Large SLR

  • Sensor

  • Effective pixels

    40 megapixels

  • Max resolution

    7264 x 5440

  • Sensor size

    Medium format (44 x 33 mm)

  • Sensor type

    CCD

  • Processor

    Prime II

  • Image ratio w:h

    4:3

  • Sensor photo detectors

    40 megapixels

  • Other resolutions

  • Image

  • ISO

    Auto, 200, 400, 800, 1600 (100 with boost)

  • Boosted ISO (minimum)

    100

  • White balance presets

    8

  • Custom white balance

    Yes (3)

  • Image stabilization

    No

  • Uncompressed format

    RAW

  • JPEG quality levels

    Good, Better, Best

  • Boosted ISO (maximum)

  • Photography features

  • Minimum shutter speed

    30 sec

  • Maximum shutter speed

    1/4000 sec

  • Aperture priority

    Yes

  • Shutter priority

    Yes

  • Manual exposure mode

    Yes

  • Subject / scene modes

    No

  • Built-in flash

    No

  • External flash

    Yes (Hot-shoe, Wireless plus sync connector)

  • Flash modes

    Auto, On, Off, Red-eye, Slow Sync, Rear Curtain

  • Continuous drive

    1.1 fps

  • Self-timer

    Yes (2 or 10 sec)

  • Metering modes

    • Multi
    • Center-weighted
    • Spot

  • Exposure compensation

    ±5 (at 1/3 EV, 1/2 EV steps)

  • AE Bracketing

    ±2 (3, 5 frames at 1/7 EV, 1/5 EV, 1/3 EV, 1/2 EV, 2/3 EV, 1 EV steps)

  • Screen / viewfinder

  • Articulated LCD

    Fixed

  • Screen size

    3

  • Screen dots

    921,000

  • Touch screen

    No

  • Screen type

    TFT Color LCD with wide-viewing angle and with AR coating

  • Viewfinder type

    Optical (pentaprism)

  • Viewfinder coverage

    98%

  • Viewfinder magnification

    0.85×

  • Live view

  • Videography features

  • Microphone

    Stereo

  • Speaker

    None

  • Optics & Focus

  • Autofocus

    • Phase Detect
    • Multi-area
    • Selective single-point
    • Single
    • Continuous
    • Live View

  • Digital zoom

    No

  • Manual focus

    Yes

  • Number of focus points

    11

  • Lens mount

    Pentax 645AF2

  • Focal length multiplier

    1×

  • Focal length (equiv.)

  • Optical zoom

  • Maximum aperture

  • Normal focus range

  • Physical

  • Weight (inc. batteries)

    1480 g (3.26 lb / 52.21 oz)

  • Dimensions

    156 x 117 x 119 mm (6.14 x 4.61 x 4.69)

  • Environmentally sealed

    Yes (Water and dust resistant)

  • Battery

    Battery Pack

  • Battery details

    Lithium-Ion D-LI90 rechargeable battery & charger

  • Storage

  • Storage types

    SD/SDHC

  • Storage included

    None

  • Connectivity

  • USB

    USB 2.0 (480 Mbit/sec)

  • Remote control

    Yes (Optional, wired or wireless)

  • HDMI

  • Other features

  • Orientation sensor

    Yes

  • Timelapse recording

    Yes

  • GPS

    None

  • Watch sample photos

  • Watch video reviews

  • launch

  • Announced

    Feb 20, 2010

  • Body type

  • Camera subcategory

    Large sensor compact

  • Sensor

  • Effective pixels

    5 megapixels

  • Max resolution

    2640 x 1760

  • Sensor size

    APS-C (20.7 x 13.8 mm)

  • Sensor type

    CMOS (Foveon X3)

  • Processor

    True II

  • Image ratio w:h

    3:2

  • Sensor photo detectors

    14 megapixels

  • Other resolutions

    1776 x 1184, 1296 x 864

  • Image

  • ISO

    100, 200, 400, 800, (1600 & 3200 in RAW)

  • Boosted ISO (minimum)

  • White balance presets

    6

  • Custom white balance

    No

  • Image stabilization

    No

  • Uncompressed format

    RAW

  • JPEG quality levels

    Fine, Normal, Basic

  • Boosted ISO (maximum)

    3200

  • Photography features

  • Minimum shutter speed

    30 sec

  • Maximum shutter speed

    1/4000 sec

  • Aperture priority

    Yes

  • Shutter priority

    Yes

  • Manual exposure mode

    Yes

  • Subject / scene modes

    Yes

  • Built-in flash

    Yes (pop-up)

  • External flash

    Yes

  • Flash modes

    Unknown

  • Continuous drive

  • Self-timer

    Yes (10 sec)

  • Metering modes

    • Multi
    • Center-weighted
    • Average

  • Exposure compensation

    ±3 (at 1/3 EV steps)

  • AE Bracketing

  • Screen / viewfinder

  • Articulated LCD

    Fixed

  • Screen size

    2.5

  • Screen dots

    230,000

  • Touch screen

    No

  • Screen type

  • Viewfinder type

    None

  • Viewfinder coverage

  • Viewfinder magnification

  • Live view

    Yes

  • Videography features

  • Microphone

    None

  • Speaker

  • Optics & Focus

  • Autofocus

    • Contrast Detect (sensor)
    • Single
    • Live View

  • Digital zoom

    No

  • Manual focus

    Yes

  • Number of focus points

  • Lens mount

  • Focal length multiplier

  • Focal length (equiv.)

    28 mm

  • Optical zoom

    1×

  • Maximum aperture

    F4

  • Normal focus range

    30 cm (11.81)

  • Physical

  • Weight (inc. batteries)

    250 g (0.55 lb / 8.82 oz)

  • Dimensions

    113 x 60 x 50 mm (4.45 x 2.36 x 1.97)

  • Environmentally sealed

    No

  • Battery

    Battery Pack

  • Battery details

  • Storage

  • Storage types

    SD/MMC card

  • Storage included

    None

  • Connectivity

  • USB

    USB 1.0 (1.5 Mbit/sec)

  • Remote control

    Yes (Wired (Optional))

  • HDMI

    No

  • Other features

  • Orientation sensor

  • Timelapse recording

    No

  • GPS

  • ————

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