Pentax K-S1 vs Canon EOS 6D Mark II

  • APS-C
  • 20 megapixels
  • Pentax KAF2
  • 42
    Overall
  • 14
    Imaging
  • 37
    Features
  • 74
    Size
  • 0
    Price
  • Full frame
  • 26 megapixels
  • Canon EF
  • 55
    Overall
  • 33
    Imaging
  • 84
    Features
  • 70
    Size
  • 0
    Price

Pentax K-S1 vs Canon EOS 6D Mark II: 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!

In this review, we are going to provide a detailed evaluation and comparison of two different camera models that fall into the same category - Semi-Pro DSLR. Although these cameras are from the same category, they were introduced by different brands - Pentax and Canon. Although Pentax K-S1 and Canon EOS 6D Mark II are both equipped with the same CMOS sensor, they boast of different resolution. Thus, Pentax K-S1 has a sensor with a resolution of 20.0 MP, while Canon EOS 6D Mark II has a different resolution of 26.0 MP.

To get started, let’s take a look at some of the key features of Pentax K-S1 and Canon EOS 6D Mark II and, after this, we can go on to our detailed comparison of these models.

Pentax K-S1 Key Features:

  • 20.0 MP APS-C CMOS sensor
  • ISO 100 - 51200
  • Image Stabilization: Yes
  • 3″ Fixed Type Screen
  • ViewFinder: Yes
  • 5.4 fps Continuous Shooting
  • Video: 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps)
  • Built-in Wireless: Yes
  • Dimensions: 121 x 93 x 70 mm
  • Weight: 558 g
  • Environmental Sealing: No
  • Built-in GPS: Yes
  • Replaced by Pentax K-S2. Compare

Canon EOS 6D Mark II Key Features:

  • 26.0 MP Full frame CMOS sensor
  • ISO 100 - 40000 (Expands to 50 - 102400)
  • Image Stabilization: Yes
  • 3″ Fully Articulated Screen
  • ViewFinder: Yes
  • 6.5 fps Continuous Shooting
  • Video: 1920 x 1080 @ 60p / 60 Mbps, MP4, H.264, AAC
  • Built-in Wireless: Yes
  • Dimensions: 144 x 111 x 75 mm
  • Weight: 765 g
  • Environmental Sealing: Yes
  • Built-in GPS: Yes
  • Replaced Canon 6D.

Pentax K-S1 was substituted by Pentax K-S2. Be sure to check out some of our other overviews that may also interest you:
Pentax K-S1 vs. K-S2
Pentax K-S2 vs. Canon EOS 6D Mark II

Why is Pentax K-S1 a better choice than Canon EOS 6D Mark II

Built-In Flash Yes vs No All the lenses are stabilized
Flash Range 10 vs No 10 better flash range
Max Shutter Speed 1/6000 vs 1/4000 Faster shutter speed
Weight 558 g vs 765 g 207 g lighter
Dxo Dynamic Range 13 vs 11.9 Better dynamic range

What are the key reasons to pick Canon EOS 6D Mark II over Pentax K-S1

NFC Yes vs No Easy wireless connectivity with compatible devices
Bluetooth Yes vs No Connect your camera to other devices via Bluetooth
Gps Built-in vs Optional Has GPS
Timelapse Recording Yes vs No Creative shooting
Sensor Resolution 26.0 MP vs 20.0 MP 23.1% more pixels
Sensor Area 861.6 mm2 vs 366.6 mm2 57.5% larger pixel area
Continuous Shooting 6.5 fps vs 5.4 fps 1.1 fps faster
Number Of Focus Points 45 vs 11 34 more focus points
Screen Type Fully Articulated vs Fixed Type Flexible shooting positions
Screen Resolution 1,040k dots vs 921k dots 11.4% higher resolution screen
Touch Screen Yes vs No Easy control of camera functions
Battery Life 1200 shots vs 410 shots 790 more frames with a single charge
Environmental Sealing Yes vs No Shoot at tough conditions
Microphone Port Yes vs No High quality audio recording option
Dxo Color Depth 24.4 vs 23.5 Better color depth
Dxo Low Light Iso 2862 vs 1061 Better High ISO performance
Viewfinder Magnification 0.71 vs 0.64 0.07 better magnification

Key PROs of Pentax K-S1 and Canon EOS 6D Mark II

Screen Size 3″ | 3″ Large display
Viewfinder Optical (pentaprism) | Optical (pentaprism) Better framing and control
Raw Support Yes | Yes Better image quality
AutoFocus Face Detection Yes | Yes Very handy for portraits
Bracketing Yes | Yes Useful for tough lighting conditions and HDR
Image Stabilization Yes | Yes Built-in stabilization
Flash Sync Port Yes | Yes Port for Flash Sync

Key CONs of Pentax K-S1 and Canon EOS 6D Mark II

Headphone Port No | No No headphone port
Continuous Shooting 5.4 fps | 6.5 fps Low continuous shooting

Pentax K-S1 vs Canon EOS 6D Mark II: 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 K-S1 and Canon EOS 6D Mark II from the front view.

Pentax K-S1
Canon EOS 6D Mark II
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Now, let’s go on and see how the reviewed models are different or similar by the top view.

Pentax K-S1
Canon EOS 6D Mark II
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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 K-S1 is a lighter option of these two, as it weights 207g less than the Canon EOS 6D Mark II. 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 Semi-Pro DSLR cameras:
Pentax K-S1 — 410 shots
Canon EOS 6D Mark II — 1200 shots
Min: 390 shots
Average: 871 shots
Max: 1840 shots
Thickness values for Semi-Pro DSLR cameras:
Pentax K-S1 — 70 mm
Canon EOS 6D Mark II — 75 mm
Min: 64 mm
Average: 75 mm
Max: 86 mm
Weight values for Semi-Pro DSLR cameras:
Pentax K-S1 — 558 g
Canon EOS 6D Mark II — 765 g
Min: 479 g
Average: 783 g
Max: 1074 g

Comparing Pentax K-S1 and Canon EOS 6D Mark II 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 K-S1 and Canon EOS 6D Mark II 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 K-S1 features a 20.0 MP APS-C sized CMOS sensor and boasts of a Prime MII processor . Canon EOS 6D Mark II, in its turn, comes with a 26.0 MP Full frame sized CMOS sensor , which makes it significantly different from the first model.

Take a look below to find the comparison of Pentax K-S1 and Canon EOS 6D Mark II by the size of their sensors.

Pentax K-S1
Canon EOS 6D Mark II
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One more distinctive feature of compared models is the sensor size. Canon EOS 6D Mark II is equipped with a sensor that is 0.4x larger than the one featured in Pentax K-S1. Compared to the cameras with smaller sensor area, the ones with larger sensors ensure more control on the blurry background and depth of field if you shoot in the same aperture and focal length. Thus, the first model has a significant advantage here.

For Which Fields Of Photography Are Pentax K-S1 and Canon EOS 6D Mark II 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 K-S1 and Canon EOS 6D Mark II 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 K-S1 Canon EOS 6D Mark II
Portrait Photography
86%
99%
Street Photography
86%
100%
Sports Photography
62%
95%
Daily Photography
39%
70%
Landscape Photography
91%
96%

Pentax K-S1 for Portrait Photography

Advantages:

  • Large APS-C (23.5 x 15.6 mm) sensor
  • Image Stabilization
  • Face Detection Focusing

Disadvantages:

No Significant Disadvantages

Canon EOS 6D Mark II for Portrait Photography

Advantages:

  • Large Full frame (35.9 x 24 mm) sensor
  • High resolution sensor (26 MP)
  • Canon is famous with its skintones
  • Image Stabilization
  • Face Detection Focusing

Disadvantages:

No Significant Disadvantages

Pentax K-S1 for Street Photography

Advantages:

  • Built-in View Finder
  • Live View
  • Image Stabilization
  • Large APS-C(23.5 x 15.6 mm) sensor

Disadvantages:

  • Big size (121 x 93 x 70 mm)
  • Small Number of autofocus Points (11)

Canon EOS 6D Mark II for Street Photography

Advantages:

  • Built-in View Finder
  • Live View
  • Fully Articulated Screen
  • Image Stabilization
  • Large Full frame(35.9 x 24 mm) sensor
  • Big battery life (1200 shots)

Disadvantages:

  • Big size (144 x 111 x 75 mm)

Pentax K-S1 for Sports Photography

Advantages:

No Significant Advantages

Disadvantages:

  • Slow Continuous Shooting (5.4 fps)
  • No Environmental Sealing
  • Slow Max Shutter Speed (1/6000s)
  • Smal Number of autofocus Points (11)
  • Bad Low Light ISO (1061)
  • Small battery life (410 shots)

Canon EOS 6D Mark II for Sports Photography

Advantages:

  • Environmental Sealing
  • Big Number of CrossFocus Points (45)
  • Nice Low Light ISO (2862)
  • Big size (144 x 111 x 75 mm)

Disadvantages:

  • Slow Continuous Shooting (6.5 fps)
  • Slow Max Shutter Speed (1/4000s)
  • Smal Number of autofocus Points (45)

Pentax K-S1 for Daily Photography

Advantages:

  • Large APS-C (23.5 x 15.6 mm) sensor
  • Built-in Flash
  • Built-in View Finder
  • Live View
  • Wireless Connectivity
  • Video is available

Disadvantages:

  • Big weight (558 g)
  • Big size (121 x 93 x 70 mm)

Canon EOS 6D Mark II for Daily Photography

Advantages:

  • Large Full frame (35.9 x 24 mm) sensor
  • Built-in View Finder
  • Live View
  • Wireless Connectivity
  • Video is available

Disadvantages:

  • Big weight (765 g)
  • Big size (144 x 111 x 75 mm)
  • No Built-in Flash

Pentax K-S1 for Landscape Photography

Advantages:

  • Large APS-C (23.5 x 15.6 mm) sensor
  • Good Dynamic Range (13.0)
  • Live View
  • RAW Support

Disadvantages:

  • Low resolution sensor (20 MP)
  • No Environmental Sealing
  • Bad Low Light ISO (1061)

Canon EOS 6D Mark II for Landscape Photography

Advantages:

  • Large Full frame (35.9 x 24 mm) sensor
  • High resolution sensor (26 MP)
  • Good Dynamic Range (11.9)
  • Environmental Sealing
  • Live View
  • RAW Support
  • Nice Low Light ISO (2862)

Disadvantages:

No Significant Disadvantages

Comparison of Pentax K-S1 vs Canon EOS 6D Mark II: 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 K-S1 or Canon EOS 6D Mark II, 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 K-S1 and Canon EOS 6D Mark II here is what we can say in conclusion:

According all the factors that we considered in the process of comparing these two cameras, Canon EOS 6D Mark II deserves a higher Total Score than the Pentax K-S1. Thus, if you are choosing between these options, we would recommend you to choose the first model over the other one.

Pentax K-S1 vs Canon EOS 6D Mark II Table Of Technical Specs

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

Pentax K-S1 Canon EOS 6D Mark II
General
Brand Pentax Canon
Model K-S1 EOS 6D Mark II
Announced Aug 27, 2014 Jun 29, 2017
Body Type Mid-size SLR Mid-size SLR
Sensor
Sensor Type CMOS CMOS
Sensor Size APS-C Full frame
Sensor Dimensions 23.5 x 15.6 mm 35.9 x 24 mm
Sensor Area 366.60 mm2 861.60 mm2
Sensor Resolution 20.0 MP 26.0 MP
Max Image Resolution 5472 x 3648 6240 x 4160
Max Native ISO 51,200 40,000
Max Boosted ISO n/a 102,400
Min Native ISO 100 100
RAW Support Yes Yes
Lens
Manual Focus Yes Yes
Lens Mount Pentax KAF2 Canon EF
Number of Lenses 144 256
Focal Length Multiplier 1.5x 1x
Macro Focus Range
AutoFocus
AF Touch No Yes
AF Continuous Yes Yes
AF Single Yes Yes
AF Tracking Yes Yes
AF Selective Yes Yes
AF Center Yes Yes
AF Multi Area Yes Yes
AF Live View Yes Yes
AF Face Detection Yes Yes
AF Contrast Detection Yes Yes
AF Phase Detection Yes Yes
Number of Focus Points 11 45
Number of Cross Focus Points n/a 45
Screen
Screen Type Fixed Type Fully Articulated
Screen Size 3″ 3″
Screen Resolution 921k dots 1,040k dots
Live View Yes Yes
Touch Screen No Yes
ViewFinder
ViewFinder Optical (pentaprism) Optical (pentaprism)
ViewFinder Resolution 0k dots 0k dots
ViewFinder Coverage 100% 98%
ViewFinder Magnification 0.64 0.71
Photography Features
Min Shutter Speed 30 s 30 s
Max Shutter Speed 1/6000 s 1/4000 s
Continuous Shooting 5.4 fps 6.5 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 Yes Yes
Built-in Flash Yes No
Flash Range 10 0
Flash Modes Auto, auto + redeye, on + redeye reduction, slow sync, trailing curtain sync, manual no built-in flash
External Flash Yes Yes
AE Bracketing Yes Yes
WB Bracketing Yes Yes
Exposure Modes
Multi-Segment Yes Yes
Average No Yes
Spot Yes Yes
Partial No Yes
AF-Area No No
Center Weighted Yes No
DxO Sensor Scores
DxO Sensor Score 78 85
DxO Color Depth 23.5 24.4
DxO Dynamic Range 13.0 11.9
DxO Low Light ISO 1061 2862
Video Features
Video Resolutions 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps) 1920 x 1080 @ 60p / 60 Mbps, MP4, H.264, AAC
Max Video Resolution 1920 x 1080 1920 x 1080
Video Formats H.264 MPEG-4, H.264
Microphone Port No Yes
Headphone Port No No
Connectivity
Wireless Connectivity Yes Yes
HDMI Yes Yes
USB USB 2.0 USB 2.0
Physical
Environmental Sealing No Yes
Water Proof No No
Dust Proof No No
Shock Proof No No
Crush Proof No No
Freeze Proof No No
Weight 558 g 765 g
Physical Dimensions 121 x 93 x 70 mm 144 x 111 x 75 mm
Battery Life 410 shots 1200 shots
Battery Type Battery Pack Battery Pack
Battery Model D-LI109 LP-E6N
Other Features
Self Timer Yes Yes
Timelapse Recording No Yes
GPS Optional Built-in
Storage Type SD/SDHC/SDXC SD/SDHC/SDXC (UHS-I compatible)
Storage Slots 1 1

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