Pentax 645D Review with Detailed Specifications and Features

Pentax 645D Review

Overall Score

Main Features

40 MP Medium format CCD Sensor
200 - 1600 ISO
3" Fixed Screen
Optical (pentaprism) Viewfinder
1 fps continuous shooting
Built-In Wireless
156 x 117 x 119 mm, 1480g.
Price Category:
Replaced by: 645Z

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Pentax 645D Overview

First introduced in March, 2010, Pentax 645D is a 40 MP DSLR with a Medium format (44 x 33 mm) sized CCD sensor.

Pentax replaced 645D with Pentax 645Z. Follow the link to read our detailed comparison of these models:

Compare Pentax 645D with Pentax 645Z

Pentax 645D comes with a Full Frame sensor - 44 x 33 mm CCD sensor, which has a diagonal of 55.0 mm

- Full Frame, approximate the actual size shown above

Sensor resolution of Pentax 645D ~ 7293 x 5484 pixels.

Pentax 645D has Crop Factor: 0.79

The sensor has a surface area of 1452.0 mm².

There are approximate 39,994,812 photosites (pixels) on this area.

Proc and Cons of Pentax 645D

Get to know this camera closer. Let's look at the features and characteristics of this model. Compare Pentax 645D with competitors in pro dslr cameras.

Pros

Built-in Wireless

Optical Viewfinder

40MP High Resolution Sensor

1.0 fps Continuous Shooting

Manual Focus

Environmental Sealing

11 Focus Points

±5 AE Bracketing Range

Focus Bracketing

External Flash

RAW Support

921k dots Screen Resolution

1/4000s Max Shutter Speed

Manual Exposure Mode

Timelapse Recording

2 Storage Slots

Flash Sync Port

Cons

No Bluetooth

No Touch Screen

No Image Stabilization

Low Max Native ISO: 1600

Weight: 1480g

No Articulating Screen

No Full HD Video

No AF Face Detection

Slow Continuous Shooting: 921 fps

Low Battery Life: 800 shots

Type Scores

Pentax 645D has an Overall Score of 63/100 and ranked #98 out of 206 in DSLR cameras, and ranked #285 out of 1222 in all cameras.

Pentax 645D Scores

Imaging score

Features score

Value for money score

Portability score

Overall score

Average Scores in Pro DSLR

Imaging Score

Features Score

Value For Money Score

Portability Score

Overall score

Physical Dimensions of Pentax 645D

Pentax 645D weighs 1480g and has external dimensions of 156 x 117 x 119mm (6.14 x 4.61 x 4.69"). Considering that the average weight of Pro DSLR cameras is 1280g, Pentax 645D is 200 grams more than the average weight of cameras in this category.

Weight Comparison
Pro DSLR Cameras

Pentax 645D

1480g

Average weight

1280g

Min weight

735g

Max weight

1585g

Thickness Comparison
Pro DSLR Cameras

Pentax 645D

119mm

Average Thickness

85mm

Min Thickness

74mm

Max Thickness

123mm

Here is the front and top view image of Pentax 645D with the dimensions:

Size Compared to Major Competitors

Model	Weight	645D	Dimensions	645D
Pentax 645Z	1550 g	1480 g	156 x 117 x 123 mm	156 x 117 x 119 mm
Nikon D810	980 g	1480 g	146 x 123 x 82 mm	156 x 117 x 119 mm
Canon 5D MIII	950 g	1480 g	152 x 116 x 76 mm	156 x 117 x 119 mm
Canon 5DS R	930 g	1480 g	152 x 116 x 76 mm	156 x 117 x 119 mm
Nikon D750	840 g	1480 g	141 x 113 x 78 mm	156 x 117 x 119 mm
Sony A7R II	625 g	1480 g	127 x 96 x 60 mm	156 x 117 x 119 mm
Pentax K-1	1010 g	1480 g	137 x 110 x 86 mm	156 x 117 x 119 mm
Canon 5DS	930 g	1480 g	152 x 116 x 76 mm	156 x 117 x 119 mm

Specifications of Pentax 645D

General
Brand	Pentax
Model	645D
Announced	March, 2010
Body Type	Large SLR
Lens
Lens Mount	Pentax 645AF2
Manual Focus
Focal Lens Multiplier	0.8
Number of Lenses	6
Macro Focus Range	n/a
Screen
Screen Size	3"
Screen Type	Fixed
Screen Resolution	921k pixels
Touch Screen
Live View
Viewfinder
Viewfinder	Optical (pentaprism)
Viewfinder Resolution	no electronic viewfinder
Viewfinder Coverage	98%
Viewfinder Magnification	0.85
Autofocus
AF Touch
AF Continuous
AF Single
AF Tracking
AF Selective
AF Center
AF Multi Area
AF Live View
AF Face Detection
AF Contrast Detection
AF Phase Detection
Number of Focus Points	11
Number of Cross Focus Points	0
Photography Features
RAW Support
Min Shutter Speed	1/30 sec
Max Shutter Speed	1/4000 sec
Continuous Shooting	1.0 fps
Shutter Priority
Aperture Priority
Manual Exposure Mode
Exposure Compensation
Custom White Balance
Image Stabilization
Built-in Flash
Flash Range	no built-in flash
Flash Modes	Auto, On, Off, Red-eye, Slow Sync, Rear Curtain
External Flash
AE Bracketing
AE Bracketing Range	±5 EV
WB Bracketing

Sensor
Sensor Size	Medium format
Sensor Type	CCD
Sensor Dimensions	44 x 33 mm
Sensor Area	1452.0 mm²
Sensor Resolution	40 MP
Max Image Resolution	7264 x 5440
Max Native ISO	1600
Min Native ISO	200
Max Boosted ISO	0
Min Boosted ISO	100
Video Features
4K
Max Video Resolution	None
Video Formats
Timelapse Recording
Microphone Port
Headphone Port
Exposure Modes
Multi-Segment
Average
Spot
Partial
AF-Area
Center Weighted
Connectivity
GPS	None
Wireless Connectivity	Built-In
Bluetooth
HDMI
USB	USB 2.0 (480 Mbit/sec)
Battery
Battery Life	800 shots
Battery Type	Battery Pack
Battery Model	D-LI90
Physical
Weight	1480 g
Physical Dimensions	156 x 117 x 119 mm
Environmental Sealing
Water Proof
Dust Proof
Shock Proof
Crush Proof
Freeze Proof
Shock Proof
Storage
Storage Type	SD/SDHC
Storage Slots	2
Other Features
Self Timer
Selfie Friendly