Canon EOS 10D vs Pentax 645D

      Canon EOS 10D

      Pentax 645D
      52
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      65
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      Disclosure: We earn money from the affiliate links to products associated with content in this article.

      Overview

      In this comparison, we will evaluate the Canon EOS 10D and the Pentax 645D, highlighting the advantages of each over the other, discussing their pros and cons, shared strengths and weaknesses, and providing a rating based on their available features and specifications to assist you in choosing the one that best suits your needs.

      Canon EOS 10D was introduced in March 2003 and Pentax 645D was introduced in March 2010. Let us first list highlights of the models.

      Canon EOS 10D Highlights

      • 6 MP APS-C CMOS Sensor
      • 100 - 1,600 Native ISO
      • 7 Focus Points
      • 1.8" 118k dot Fixed Screen
      • Optical (pentaprism) Viewfinder
      • 3.0 fps Continuous Shooting
      • Built-in Flash

      Pentax 645D Highlights

      • 40 MP Medium format CCD Sensor
      • No Optical Low-pass Filter
      • 200 - 1,600 Native ISO
      • 11 Focus Points
      • 3.0" 921k dot Fixed Screen
      • Optical (pentaprism) Viewfinder
      • 1.1 fps Continuous Shooting
      • Wheather Sealed Body
      Table of Contents
      1. Overview
      2. Pros and Cons
      3. Advantage of Canon EOS 10D
      4. Advantage of Pentax 645D
      5. Common Strengths and Weaknesses
      6. Screen and Viewfinder
      7. Sensor
      8. Photography Features
      9. Connectivity, Battery and Storage
      10. Other Features
      11. Physical Parameters
      12. For Different Types of Photography
      13. Evaluations
      14. Specifications  

      Now that we've looked at the most essential specifications and gained a basic understanding of these cameras, we can delve into more details and see the differences between them.

      Pros and Cons

      In this section we present pros and cons of Canon EOS 10D and Pentax 645D.

      PROS

      Canon EOS 10D

      Pentax 645D

      •   Built-in Flash
      •   Orientation Sensor
      •   Large Sensor
      •   High Resolution Sensor - 40 Megapixel
      •   Live View Autofocus
      •   Environmental Sealing
      •   2 Storage Slots
      •   Orientation Sensor

      CONS

      Canon EOS 10D

      Pentax 645D

      •   No Video Capture
      •   Low Resolution Sensor - 6 Megapixel
      •   1,600 Highest Native ISO
      •   Timelapse Recording
      •   7 Focus Points
      •   No Face Detection
      •   No Image Stabilization
      •   Fixed Screen
      •   Small Screen - 1.8"
      •   Low Resolution Screen - 118k dot
      •   No Live View
      •   Low Max Continuous Shooting - 3.0 fps
      •   Low DxO Overall Score - 57
      •   Low USB Speed
      •   No HDMI Output
      •   No Microphone Input
      •   No Headphone Output
      •   No Built-in GPS
      •   No Built-In Wi-Fi
      •   No Built-In Bluetooth
      •   No Environmental Sealing
      •   No Video Capture
      •   200 Lowest Native ISO
      •   1,600 Highest Native ISO
      •   11 Focus Points
      •   No Face Detection
      •   No Image Stabilization
      •   Fixed Screen
      •   No Live View
      •   Low Max Continuous Shooting - 1.1 fps
      •   Low Flash Sync Speed - 1/125 sec
      •   No HDMI Output
      •   No Microphone Input
      •   No Headphone Output
      •   No Built-in GPS
      •   No Built-In Wi-Fi
      •   No Built-In Bluetooth
      •   Heavy - 1480 g (3.26 lb / 52.21 oz)


      And here are some specifications which fall into average criteria and are neither in PROs nor in CONs category:

      AVERAGE

      Canon EOS 10D

      Pentax 645D

      •   100 Lowest Native ISO
      •   Max Shutter Speed (Mechanical or 1st Curtain) - 1/4000 sec
      •   Max Flash Sync Speed - 1/200 sec
      •   Weight - 875 g (1.93 lb / 30.86 oz)
      •   Screen Size - 3.0"
      •   Screen Resolution - 921k dot
      •   Max Shutter Speed (Mechanical or 1st Curtain) - 1/4000 sec
      •   DxO Overall Score - 82
      •   Battery Life - 800 shots

      Advantage of Canon EOS 10D

      Canon 10D
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      This section shows those features and specifications which are the reason to choose Canon EOS 10D over Pentax 645D.

      Canon EOS 10D vs Pentax 645D
      Lower Native ISO 100 vs 200
      Higher Max Continuous Shooting 3.0 fps vs 1.1 fps
      Built-in Flash vs
      Higher Flash Sync Speed 1/200 sec vs 1/125 sec
      Lighter 875 g (1.93 lb / 30.86 oz) vs 1480 g (3.26 lb / 52.21 oz)

      Check out other cameras which are frequently compared to Canon EOS 10D.

      Canon 80D
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      APS-C

      24.2 MP

      Canon 77D
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      APS-C

      24.2 MP

      Canon 40D
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      APS-C

      10.1 MP

      Canon 90D
      Image cannot be found

      APS-C

      32.5 MP

      Canon 60D
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      APS-C

      18.0 MP

      Canon 30D
      Image cannot be found

      APS-C

      8.2 MP

      Canon 20D
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      APS-C

      8 MP

      Canon 50D
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      APS-C

      15.1 MP

      Canon 20Da
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      APS-C

      8.25 MP

      Canon 70D
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      APS-C

      20.2 MP

      Canon 60Da
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      APS-C

      18.0 MP

      Sony ZV-E10
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      APS-C

      24.2 MP

      Advantage of Pentax 645D

      Pentax 645D
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      This section shows those features and specifications which are the reason to choose Pentax 645D over Canon EOS 10D.

      Canon EOS 10D vs Pentax 645D
      Larger Sensor APS-C vs Medium format
      Higher Sensor Resolution 6 Megapixel vs 40 Megapixel
      Max Image Resolution 3072 x 2048 vs 7264 x 5440
      Timelapse Recording vs
      More Focus Points 7 vs 11
      Live View Autofocus vs
      Larger Screen 1.8" vs 3.0"
      Higher Resolution Screen 118k dot vs 921k dot
      Higher Viewfinder Coverage 95% vs 98%
      Higher Viewfinder Magnification (35mm equivalent) 0.55x vs 0.71x
      Multi-Segment Metering vs
      Center Weighted Metering vs
      Spot Metering vs
      Higher DxO Low Light ISO 571 vs 1262
      Higher DxO Color Depth 21.1 vs 24.6
      Higher DxO Dynamic Range 10.9 vs 12.6
      Higher DxO Overall Score 57 vs 82
      Higher USB Speed USB 1.0 (1.5 Mbit/sec) vs USB 2.0 (480 Mbit/sec)
      Environmental Sealing vs
      More Storage Slots 1 vs 2

      Check out other cameras which are frequently compared to Pentax 645D.

      Pentax 645Z
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      Medium format

      51.4 MP

      Canon Rebel T7i
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      APS-C

      24.2 MP

      Canon 5DS R
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      Full Frame

      50.6 MP

      Fujifilm X-S10
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      APS-C

      26.1 MP

      Canon 5DS
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      Full Frame

      50.6 MP

      Sony a7 III
      Image cannot be found

      Full Frame

      24.2 MP

      Sony SLT-A68
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      APS-C

      24.2 MP

      Sony a7R IV
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      Full Frame

      61.0 MP

      Sony a6300
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      APS-C

      24.2 MP

      Canon 70D
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      APS-C

      20.2 MP

      Sony a7R IIIA
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      Full Frame

      42.4 MP

      Pentax K-50
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      APS-C

      16.3 MP

      Common Strengths and Weaknesses

      We already listed pros and cons of each model. However, you may also find useful to look at their common strengths and weaknesses shown side-by-side.

      STRENGTHS Canon EOS 10D Pentax 645D
        Orientation Sensor
      WEAKNESSES Canon EOS 10D Pentax 645D
        No Video Capture
        Low Native ISO1,6001,600
        Few Focus Points711
        No Face Detection
        No Image Stabilization
        Screen TypeFixedFixed
        No Live View
        Low Max Continuous Shooting3.0 fps1.1 fps
        No HDMI Output
        No Microphone Input
        No Headphone Output
        No Built-in GPS
        No Built-In Wi-Fi
        No Built-In Bluetooth

      Screen and Viewfinder

      Screen

      Canon EOS 10D has a 1.8" screen with 118k dot resolution and Pentax 645D has a 3.0" screen with 921k dot resolution. Both have Fixed screens.


      Viewfinder

      Cameras have built-in Optical (pentaprism) viewfinders. Canon EOS 10D has 95% coverage with 0.88x (0.55x 35mm equivalent) magnification and Pentax 645D has 98% coverage with 0.56x (0.71x 35mm equivalent) magnification.

      Sensor

      Canon EOS 10D features a 6 megapixel APS-C CMOS sensor with dimensions of 22.7 x 15.1 mm and a total area of 342.8 mm2. Its native ISO range is 100 - 1,600 and expands to 100 - 3,200 in boosted mode. Pentax 645D features a 40 megapixel Medium format CCD sensor with dimensions of 44 x 33 mm and a total area of 1089 mm2. Its native ISO range is 200 - 1,600 and expands to 100 - 1,600 in boosted mode.


      Here is a sensor size comparison chart where you can see how different sensors compare with each other:

      Sensor size chart
      Sensor Dimensions Area Aspect Ratio Crop Factor
      Image cannot be displayedMedium Format44 x 33 mm1452 mm24:30.79x
      Image cannot be displayedFull Frame36 x 24 mm864 mm23:21x
      Image cannot be displayedAPS-H27 x 18 mm486 mm23:21.3x
      Image cannot be displayedAPS-C23.6 x 15.6 mm368.2 mm23:21.5x
      Image cannot be displayedAPS-C (Canon)22.3 x 14.9 mm332.3 mm23:21.6x
      Image cannot be displayedMicro Four Thirds17.4 x 13 mm226.2 mm24:32x
      Image cannot be displayed1-inch13.2 x 8.8 mm116.2 mm23:22.7x
      Image cannot be displayed1/1.7-inch7.44 x 5.58 mm41.5 mm24:34.7x
      Image cannot be displayed1/2.3-inch6.17 x 4.55 mm28.1 mm24:35.6x

      Photography Features

      Canon EOS 10D can take pictures up to 3072 x 2048 resolution. It can also take pictures with lower resolution like 2048 x 1360, 1536 x 1024 with 3:2 aspect ratios. Pentax 645D is equipped with PRIME II processor and can take pictures up to 7264 x 5440 resolution.


      Lens Mount

      Canon EOS 10D has Canon EF lens mount and Pentax 645D has Pentax 645AF2 lens mount. Due to APS-C sensor in Canon EOS 10D its crop factor is equal to 1.6x, this means that a 35mm equivalent focal length of the mounted lens will be equal to its actual focal length times 1.6. Due to Medium format sensor in Pentax 645D its crop factor is equal to 0.79x, this means that a 35mm equivalent focal length of the mounted lens will be equal to its actual focal length times 0.79.


      No Low-Pass Filter on Pentax 645D

      There is no optical low-pass filter (OLPF), also known as an anti-aliasing filter, in front of the sensor on Pentax 645D. This results in a slightly sharper image but may also introduce moiré patterns and aliasing artifacts when photographing subjects with fine, repetitive patterns or details.


      No Image Stabilization

      The cameras do not have image stabilization. On Canon EOS 10D it means that you need lenses with optical image stabilization for vibration reduction. As for Pentax 645D nothing can be done. On Pentax 645D it means that you need lenses with optical image stabilization for vibration reduction. As for Canon EOS 10D nothing can be done.

      Connectivity, Battery and Storage

      USB Inputs

      Both models have USB inputs for data transfer.


      Battery

      Pentax 645D comes with D-LI90 battery pack with battery life of 800 shots.


      External Storage Slots

      Canon EOS 10D has a single CompactFlash (Type I/II) card slot. Pentax 645D has Dual SD/SDHC card slots.

      Other Features

      Shutter

      Canon EOS 10D has Electronically-controlled focal-plane shutter. Shutter speed can go up to 1/4000 sec on Canon EOS 10D, and up to 1/4000 sec on Pentax 645D. Canon EOS 10D can shoot continuously up to 3.0 fps. Pentax 645D can shoot continuously up to 1.1 fps.


      Exposure

      Exposure meterings of Pentax 645D ranges from +2 to +21 EV and you can set the exposure compensation within the ±2 EV range on Canon EOS 10D and ±5 EV range on Pentax 645D. You can also do and manual exposure adjustment on Canon EOS 10D and exposure lock, exposure bracketing and manual exposure adjustment on Pentax 645D.


      Flash

      Canon EOS 10D has a built-in flash with maximum range of 12.00 m at ISO 100 and also accepts external flash. Pentax 645D has no built-in flash but an external flash may be connected via Hot Shoe (P-TTL or high speed sync available) or wireless with PENTAX dedicated flash or X-sync socket. The fastest flash synchronization speed is 1/200 sec on Canon EOS 10D and 1/125 sec on Pentax 645D.

      Physical Parameters

      Canon EOS 10D body has dimensions of 150 x 107 x 75 mm (5.91 x 4.21 x 2.95") and Pentax 645D body has dimensions of 156 x 117 x 119 mm (6.14 x 4.61 x 4.69"). Canon EOS 10D weighs 875 g (1.93 lb / 30.86 oz) and Pentax 645D weighs 1480 g (3.26 lb / 52.21 oz).

      Canon EOS 10D

      Pentax 645D

      150 mm

      107 mm

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      156 mm

      117 mm

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      107 mm

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      117 mm

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      75 mm

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      119 mm

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      Size comparisons of Canon EOS 10D and Pentax 645D

      Canon EOS 10D and Pentax 645D for Different Types of Photography

      We give scores to the cameras for six types of photography based on their features and specifications. Let us see how suitable they are for each type of photography.

      Landscape Photography

      Canon EOS 10D

      Pentax 645D

      AVERAGE
      63
      •   Low Resolution Screen - 118k dot
      •   No Live View
      •   No Built-in GPS
      •   No Environmental Sealing
      EXCELLENT
      86
      •   Large Sensor
      •   Screen Resolution - 921k dot
      •   No Live View
      •   No Built-in GPS
      •   Environmental Sealing

      Sports Photography

      Canon EOS 10D

      Pentax 645D

      POOR
      53
      •   1,600 Highest Native ISO
      •   7 Focus Points
      •   No Face Detection
      •   No Image Stabilization
      •   Low Resolution Screen - 118k dot
      •   No Live View
      •   Low Max Continuous Shooting - 3.0 fps
      •   Orientation Sensor
      AVERAGE
      63
      •   1,600 Highest Native ISO
      •   11 Focus Points
      •   No Face Detection
      •   No Image Stabilization
      •   Screen Resolution - 921k dot
      •   No Live View
      •   Low Max Continuous Shooting - 1.1 fps
      •   Battery Life - 800 shots
      •   2 Storage Slots
      •   Orientation Sensor

      Wildlife Photography

      Canon EOS 10D

      Pentax 645D

      POOR
      52
      •   1,600 Highest Native ISO
      •   7 Focus Points
      •   No Image Stabilization
      •   Low Resolution Screen - 118k dot
      •   No Live View
      •   Low Max Continuous Shooting - 3.0 fps
      •   No Environmental Sealing
      •   Orientation Sensor
      AVERAGE
      65
      •   1,600 Highest Native ISO
      •   11 Focus Points
      •   No Image Stabilization
      •   Screen Resolution - 921k dot
      •   No Live View
      •   Low Max Continuous Shooting - 1.1 fps
      •   Environmental Sealing
      •   Battery Life - 800 shots
      •   2 Storage Slots
      •   Orientation Sensor

      Portrait Photography

      Canon EOS 10D

      Pentax 645D

      AVERAGE
      69
      •   7 Focus Points
      •   No Face Detection
      •   No Image Stabilization
      •   Small Screen - 1.8"
      •   Low Resolution Screen - 118k dot
      •   No Live View
      •   Max Flash Sync Speed - 1/200 sec
      •   Orientation Sensor
      GOOD
      77
      •   Large Sensor
      •   11 Focus Points
      •   No Face Detection
      •   No Image Stabilization
      •   Screen Size - 3.0"
      •   Screen Resolution - 921k dot
      •   No Live View
      •   Low Flash Sync Speed - 1/125 sec
      •   Orientation Sensor

      Street Photography

      Canon EOS 10D

      Pentax 645D

      GOOD
      72
      •   7 Focus Points
      •   No Image Stabilization
      •   Fixed Screen
      •   Low Resolution Screen - 118k dot
      •   No Live View
      •   No Built-in GPS
      •   No Environmental Sealing
      •   Weight - 875 g (1.93 lb / 30.86 oz)
      GOOD
      70
      •   Large Sensor
      •   11 Focus Points
      •   No Image Stabilization
      •   Fixed Screen
      •   Screen Resolution - 921k dot
      •   No Live View
      •   No Built-in GPS
      •   Environmental Sealing
      •   Heavy - 1480 g (3.26 lb / 52.21 oz)

      Travel Photography

      Canon EOS 10D

      Pentax 645D

      GOOD
      70
      •   No Image Stabilization
      •   Fixed Screen
      •   Low Resolution Screen - 118k dot
      •   No Built-in GPS
      •   No Environmental Sealing
      •   Weight - 875 g (1.93 lb / 30.86 oz)
      AVERAGE
      58
      •   No Image Stabilization
      •   Fixed Screen
      •   Screen Resolution - 921k dot
      •   No Built-in GPS
      •   Environmental Sealing
      •   Heavy - 1480 g (3.26 lb / 52.21 oz)
      •   Battery Life - 800 shots

      Evaluations

      We evaluate Canon EOS 10D and Pentax 645D and give them scores of 52 and 65 out of 100 recpectively. We also give separate scores for 7 different categories according to the available features and specifications some of which are listed below. These evaluations are relative and may change each time a new camera is added to the database.


      Canon EOS 10D

      Pentax 645D

      OVERALL
      52
      OVERALL
      65

      Sensor

      Canon EOS 10D

      Pentax 645D

      AVERAGE
      66
      •   Low Resolution Sensor - 6 Megapixel
      •   100 Lowest Native ISO
      •   1,600 Highest Native ISO
      •   Low DxO Overall Score - 57
      GOOD
      80
      •   Large Sensor
      •   High Resolution Sensor - 40 Megapixel
      •   200 Lowest Native ISO
      •   1,600 Highest Native ISO
      •   DxO Overall Score - 82

      Photo

      Canon EOS 10D

      Pentax 645D

      POOR
      51
      •   Timelapse Recording
      •   No Image Stabilization
      •   Max Shutter Speed (Mechanical or 1st Curtain) - 1/4000 sec
      •   Low Max Continuous Shooting - 3.0 fps
      •   Max Flash Sync Speed - 1/200 sec
      GOOD
      71
      •   No Image Stabilization
      •   Max Shutter Speed (Mechanical or 1st Curtain) - 1/4000 sec
      •   Low Max Continuous Shooting - 1.1 fps
      •   Low Flash Sync Speed - 1/125 sec

      Video

      Canon EOS 10D

      Pentax 645D

      BAD
      0
      •   No Image Stabilization
      BAD
      0
      •   No Image Stabilization

      Focusing

      Canon EOS 10D

      Pentax 645D

      AVERAGE
      69
      •   7 Focus Points
      •   No Face Detection
      GOOD
      71
      •   11 Focus Points
      •   No Face Detection
      •   Live View Autofocus

      Screen and Viewfinder

      Canon EOS 10D

      Pentax 645D

      AVERAGE
      64
      •   Fixed Screen
      •   Small Screen - 1.8"
      •   Low Resolution Screen - 118k dot
      GOOD
      73
      •   Fixed Screen
      •   Screen Size - 3.0"
      •   Screen Resolution - 921k dot

      Connectivity

      Canon EOS 10D

      Pentax 645D

      BAD
      34
      •   Low USB Speed
      •   No HDMI Output
      •   No Microphone Input
      •   No Headphone Output
      •   No Built-in GPS
      •   No Built-In Wi-Fi
      •   No Built-In Bluetooth
      POOR
      52
      •   No HDMI Output
      •   No Microphone Input
      •   No Headphone Output
      •   No Built-in GPS
      •   No Built-In Wi-Fi
      •   No Built-In Bluetooth

      Battery, Storage and Physical

      Canon EOS 10D

      Pentax 645D

      BAD
      37
      •   No Environmental Sealing
      •   Weight - 875 g (1.93 lb / 30.86 oz)
      GOOD
      70
      •   Environmental Sealing
      •   Heavy - 1480 g (3.26 lb / 52.21 oz)
      •   Battery Life - 800 shots
      •   2 Storage Slots


      For a full specification list please go to the specifications page:

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