Pentax 645Z vs Pentax 645D

  • Medium format
  • 51 megapixels
  • Pentax 645AF2
  • 70
    Overall
  • 60
    Imaging
  • 55
    Features
  • 66
    Size
  • 0
    Price
  • Medium format
  • 40 megapixels
  • Pentax 645AF2
  • 57
    Overall
  • 40
    Imaging
  • 37
    Features
  • 66
    Size
  • 0
    Price

Pentax 645Z vs Pentax 645D: a Complete Review and Comparison

Are you looking for the best camera to suit your needs? Due to a wide range of options, making a wise and weighted decision can be rather challenging. Which specs to keep in mind? What are the key pros and cons of each model? This comparison should give some helpful hints!

The goal of this overview is to provide a detailed comparison of two popular camera models from Pro DSLR category, introduced by Pentax. We are going to take a closer look at the technical and physical characteristics, features, and performance. The models we are going to assess and compare in this review are 645Z and 645D. The models we are going to compare in our review have different sensors. Pentax 645Z features a CMOS sensor that has a resolution of 51.0 MP. Pentax 645D, on the contrary, has a different CCD sensor with 51.0 MP resolution.

Now, before we can move on to our comparison, let's take a moment to look at the key characteristics of Pentax 645Z and Pentax 645D.

Pentax 645Z Key Features:

  • 51.0 MP Medium format CMOS sensor
  • ISO 100 - 204800
  • Image Stabilization: No
  • 3.2″ Tilting Screen
  • ViewFinder: Yes
  • 3.0 fps Continuous Shooting
  • Video: 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p)
  • Built-in Wireless: No
  • Dimensions: 156 x 117 x 123 mm
  • Weight: 1550 g
  • Environmental Sealing: Yes
  • Built-in GPS: Yes
  • Replaced Pentax 645D. Compare

Pentax 645D Key Features:

  • 40.0 MP Medium format CCD sensor
  • ISO 200 - 1600 (Expands to 100)
  • Image Stabilization: No
  • 3″ Fixed Type Screen
  • ViewFinder: Yes
  • 1.0 fps Continuous Shooting
  • Built-in Wireless: No
  • Dimensions: 156 x 117 x 119 mm
  • Weight: 1480 g
  • Environmental Sealing: Yes
  • Built-in GPS: No
  • Replaced by Pentax 645Z. Compare

Being a newer model, Pentax 645Z substituted Pentax 645D.

Why is Pentax 645Z a better choice than Pentax 645D

Sensor Resolution 51.0 MP vs 40.0 MP 21.6% more pixels
Continuous Shooting 3 fps vs Yes fps 2 fps faster
Number Of Focus Points 27 vs 11 16 more focus points
AutoFocus Face Detection Yes vs No Very handy for portraits
Screen Size 3.2″ vs 3″ 0.2" larger screen
Screen Resolution 1,037k dots vs 921k dots 11.2% higher resolution screen
Dxo Color Depth 26 vs 24.6 Better color depth
Dxo Dynamic Range 14.7 vs 12.6 Better dynamic range
Dxo Low Light Iso 4505 vs 1262 Better High ISO performance

What are the key reasons to pick Pentax 645D over Pentax 645Z

Battery Life 800 shots vs 650 shots 150 more frames with a single charge
Weight 1480 g vs 1550 g 70 g lighter

Key PROs of Pentax 645Z and Pentax 645D

Screen Size 3.2″ | 3″ Large display
Viewfinder Optical (pentaprism) | Optical (pentaprism) Better framing and control
Raw Support Yes | Yes Better image quality
Sensor Resolution 51.0 MP | 40.0 MP Bigger prints and more details
Timelapse Recording Yes | Yes Creative shooting
Storage Slots 2 slots | 2 slots Extra Storage Slots
Bracketing Yes | Yes Useful for tough lighting conditions and HDR
Flash Sync Port Yes | Yes Port for Flash Sync
Environmental Sealing Yes | Yes Shoot at tough conditions
Battery Life 650 shots | 800 shots Big number of frames with a single charge

Key CONs of Pentax 645Z and Pentax 645D

Touch Screen No | No No touch screen
Continuous Shooting 3.0 fps | 1.0 fps Low continuous shooting
Built-In Flash No | No No built-in flash
Image Stabilization No | No No image stabilization

Pentax 645Z vs Pentax 645D: Comparing Two Models By Physical Characteristics

Before heading straight to the technical characteristics of each model, let’s start with comparing their physical specs. Let’s start with looking at the physical difference of the two products. Below are images that clearly show the sizes of Pentax 645Z and Pentax 645D from the front view.

Pentax 645Z
Pentax 645D
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Now, let’s go on and see how the reviewed models are different or similar by the top view.

Pentax 645Z
Pentax 645D
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After looking at these images, you should get a clear idea of each model’s dimensions and how they are different from each other. However, we are not going to stop there. The next characteristic worth looking at is the weight. Of course, not every photographer is concerned about the weight, for example, it wouldn't be a decisive point for those who shoot in a studio. However, it is still an important factor because if you happen to go on a long photo session or just love having the camera with you wherever you go, you want to be sure that the chosen model isn't too heavy.

Speaking of weight, Pentax 645D is a lighter option of these two, as it weights 70g less than the Pentax 645Z. This difference, in fact, can become a significant disadvantage for the photographers, who prefer to have their cameras with them wherever they go.

Battery values for Pro DSLR cameras:
Pentax 645Z — 650 shots
Pentax 645D — 800 shots
Min: 650 shots
Average: 2336 shots
Max: 4400 shots
Thickness values for Pro DSLR cameras:
Pentax 645Z — 123 mm
Pentax 645D — 119 mm
Min: 74 mm
Average: 85 mm
Max: 123 mm
Weight values for Pro DSLR cameras:
Pentax 645Z — 1550 g
Pentax 645D — 1480 g
Min: 735 g
Average: 1275 g
Max: 1585 g

Comparing Pentax 645Z and Pentax 645D by the type of Sensor and Resolution

Sensor is, without a doubt, the most significant element of every digital camera. Its type, size, and resolution are the factors that define the quality of future shots. Thus, it is barely possible to pick a suitable camera without looking at these specs.

Are Pentax 645Z and Pentax 645D any different in terms of sensor type?

In fact, that's exactly what makes these two models really different. Thus, it is a good point to consider if your are choosing between these two cameras. Pentax 645Z features a 51.0 MP Medium format sized CMOS sensor and boasts of a PRIME III processor . Pentax 645D, in its turn, comes with a 40.0 MP Medium format sized CCD sensor and Prime II processor , which makes it significantly different from the first model.

Take a look below to find the comparison of Pentax 645Z and Pentax 645D by the size of their sensors.

Pentax 645Z
Pentax 645D
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Pentax 645Z and Pentax 645D are identical by this indicator, as each feature a sensor of the same size. Thus, both cameras will provide the same level of control in terms of the depth of field if you use them with the same focal length and aperture.

For Which Fields Of Photography Are Pentax 645Z and Pentax 645D Suitable?

If you are interested in photography or has made a career in this field, you should know that different types of shooting actually require different camera characteristics. While one model can produce outstanding portraits, at the same time, it can be terrible for shooting landscapes, and so on. Thus, before you purchase a specific camera, it is vital to decide, which type of shooting you do most often and consider an option that suits it the most.

This section of our comparison is devoted to the performance of Pentax 645Z and Pentax 645D in different fields of photography. Here we are going to look at the five main areas and evaluate how well each of the reviewed models performs in them. This will help you choose an option that suits your needs the most depending on your interest in one or several of these fields.

Photography Type Pentax 645Z Pentax 645D
Portrait Photography
93%
89%
Street Photography
67%
30%
Sports Photography
92%
86%
Daily Photography
79%
93%
Landscape Photography
100%
96%

Pentax 645Z for Portrait Photography

Advantages:

  • Large Medium format (44 x 33 mm) sensor
  • High resolution sensor (51 MP)
  • Face Detection Focusing

Disadvantages:

  • No Image Stabilization

Pentax 645D for Portrait Photography

Advantages:

  • Large Medium format (44 x 33 mm) sensor
  • High resolution sensor (40 MP)

Disadvantages:

  • No Image Stabilization

Pentax 645Z for Street Photography

Advantages:

  • Built-in View Finder
  • Live View
  • Large Medium format(44 x 33 mm) sensor

Disadvantages:

  • Big size (156 x 117 x 123 mm)
  • No Image Stabilization

Pentax 645D for Street Photography

Advantages:

  • Built-in View Finder
  • Large Medium format(44 x 33 mm) sensor

Disadvantages:

  • Big size (156 x 117 x 119 mm)
  • No Image Stabilization
  • Small Number of autofocus Points (11)

Pentax 645Z for Sports Photography

Advantages:

  • Environmental Sealing
  • Nice Low Light ISO (4505)
  • Big size (156 x 117 x 123 mm)

Disadvantages:

  • Slow Continuous Shooting (3.0 fps)
  • Slow Max Shutter Speed (1/4000s)
  • Smal Number of autofocus Points (27)
  • Small battery life (650 shots)

Pentax 645D for Sports Photography

Advantages:

  • Environmental Sealing
  • Big size (156 x 117 x 119 mm)

Disadvantages:

  • Slow Continuous Shooting (1.0 fps)
  • Slow Max Shutter Speed (1/4000s)
  • Smal Number of autofocus Points (11)
  • Bad Low Light ISO (1262)
  • Small battery life (800 shots)

Pentax 645Z for Daily Photography

Advantages:

  • Large Medium format (44 x 33 mm) sensor
  • Built-in View Finder
  • Live View
  • Video is available

Disadvantages:

  • Big weight (1550 g)
  • Big size (156 x 117 x 123 mm)
  • No Built-in Flash

Pentax 645D for Daily Photography

Advantages:

  • Large Medium format (44 x 33 mm) sensor
  • Built-in View Finder
  • Live View

Disadvantages:

  • Big weight (1480 g)
  • Big size (156 x 117 x 119 mm)
  • No Built-in Flash
  • Video is not available

Pentax 645Z for Landscape Photography

Advantages:

  • Large Medium format (44 x 33 mm) sensor
  • High resolution sensor (51 MP)
  • Good Dynamic Range (14.7)
  • Environmental Sealing
  • Live View
  • RAW Support
  • Nice Low Light ISO (4505)

Disadvantages:

No Significant Disadvantages

Pentax 645D for Landscape Photography

Advantages:

  • Large Medium format (44 x 33 mm) sensor
  • High resolution sensor (40 MP)
  • Good Dynamic Range (12.6)
  • Environmental Sealing
  • Live View
  • RAW Support

Disadvantages:

  • Bad Max Native ISO (1600)

Comparison of Pentax 645Z vs Pentax 645D: Final Verdict

Hopefully, our detailed overview of these models has helped you consider all the main specs, pros and cons of each cameras. Maybe, after reading this comparison, some of you have already decided which option to opt for depending on your needs and preferences. However, if you are still wondering which option is a better choice, Pentax 645Z or Pentax 645D, below you can see what scores each of them received in five different aspects. To wrap up, we have used our unique Decision Algorithm that assesses different camera models upon 63 different factors including their price, and, if possible, DxO Mark scores. This algorithm allows us to make our verdict more consistent and objective.

What is our final verdict? Based on our comparison and the final scores of Pentax 645Z and Pentax 645D here is what we can say in conclusion:

According all the factors that we considered in the process of comparing these two cameras, Pentax 645Z deserves a higher Total Score than the Pentax 645D. Thus, if you are choosing between these options, we would recommend you to choose the first model over the other one.

Pentax 645Z vs Pentax 645D Table Of Technical Specs

For better understanding of each model’s technical characteristics, find the detailed comparison below:

Pentax 645Z Pentax 645D
General
Brand Pentax Pentax
Model 645Z 645D
Announced Apr 15, 2014 Mar 10, 2010
Body Type Large SLR Large SLR"
Sensor
Sensor Type CMOS CCD
Sensor Size Medium format Medium format
Sensor Dimensions 44 x 33 mm 44 x 33 mm
Sensor Area 1452.00 mm2 1452.00 mm2
Sensor Resolution 51.0 MP 40.0 MP
Max Image Resolution 8256 x 6192 7264 x 5440
Max Native ISO 204,800 1,600
Max Boosted ISO n/a n/a
Min Native ISO 100 200
RAW Support Yes Yes
Lens
Manual Focus Yes Yes
Lens Mount Pentax 645AF2 Pentax 645AF2
Number of Lenses 6 6
Focal Length Multiplier 0.8x 0.8x
Macro Focus Range
AutoFocus
AF Touch No No
AF Continuous Yes Yes
AF Single Yes Yes
AF Tracking Yes No
AF Selective Yes Yes
AF Center No No
AF Multi Area Yes Yes
AF Live View Yes Yes
AF Face Detection Yes No
AF Contrast Detection Yes No
AF Phase Detection Yes Yes
Number of Focus Points 27 11
Number of Cross Focus Points n/a n/a
Screen
Screen Type Tilting Fixed Type
Screen Size 3.2″ 3″
Screen Resolution 1,037k dots 921k dots
Live View Yes No
Touch Screen No No
ViewFinder
ViewFinder Optical (pentaprism) Optical (pentaprism)
ViewFinder Resolution 0k dots 0k dots
ViewFinder Coverage 98% 98%
ViewFinder Magnification 0.85 0.85
Photography Features
Min Shutter Speed 30 s 30 s
Max Shutter Speed 1/4000 s 1/4000 s
Continuous Shooting 3.0 fps 1.0 fps
Shutter Priority Yes Yes
Aperture Priority Yes Yes
Manual Exposure Mode Yes Yes
Exposure Compensation Yes Yes
Custom White Balance Yes Yes
Image Stabilization No No
Built-in Flash No No
Flash Range 0 0
Flash Modes Flash On, Flash On+Red-eye Reduction, Slow-speed Sync, Slow-speed Sync+Red-eye, P-TTL, Trailing Curtain Sync, contrast-control-sync, high-speed sync, wireless sync Auto, Red-eye, Slow Sync, Rear Curtain
External Flash Yes Yes
AE Bracketing Yes Yes
WB Bracketing No No
Exposure Modes
Multi-Segment Yes Yes
Average No No
Spot Yes Yes
Partial No No
AF-Area No No
Center Weighted Yes Yes
DxO Sensor Scores
DxO Sensor Score 101 82
DxO Color Depth 26.0 24.6
DxO Dynamic Range 14.7 12.6
DxO Low Light ISO 4505 1262
Video Features
Video Resolutions 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p,24p) n/a
Max Video Resolution 1920 x 1080
Video Formats MPEG-4, H.264 n/a
Microphone Port Yes No
Headphone Port No No
Connectivity
Wireless Connectivity No No
HDMI Yes No
USB USB 3.0 USB 2.0
Physical
Environmental Sealing Yes Yes
Water Proof No No
Dust Proof Yes No
Shock Proof No No
Crush Proof No No
Freeze Proof Yes No
Weight 1550 g 1480 g
Physical Dimensions 156 x 117 x 123 mm 156 x 117 x 119 mm
Battery Life 650 shots 800 shots
Battery Type Battery Pack Battery Pack
Battery Model D-LI90 D-LI90
Other Features
Self Timer Yes Yes
Timelapse Recording Yes Yes
GPS Optional
Storage Type Dual SD/SDHC/SDXC slots SD/SDHC
Storage Slots 2 2

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