Pentax K-1 II vs Pentax K-S1
55 Imaging
77 Features
82 Overall
79
69 Imaging
62 Features
70 Overall
65
Pentax K-1 II vs Pentax K-S1 Key Specs
(Full Review)
- 36MP - Full frame Sensor
- 3.2" Fully Articulated Display
- ISO 100 - 819200
- Sensor based 5-axis Image Stabilization
- No Anti-Alias Filter
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Pentax KAF4 Mount
- 1010g - 137 x 110 x 86mm
- Introduced February 2018
- Succeeded the Pentax K-1
(Full Review)
- 20MP - APS-C Sensor
- 3" Fixed Screen
- ISO 100 - 51200
- Sensor based Image Stabilization
- No Anti-Alias Filter
- 1/6000s Maximum Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 558g - 121 x 93 x 70mm
- Released August 2014
- Updated by Pentax K-S2
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Here is a in depth overview of the Pentax K-1 II vs Pentax K-S1, both Advanced DSLR cameras and both are designed by Pentax. There is a considerable difference among the sensor resolutions of the K-1 II (36MP) and K-S1 (20MP) and the K-1 II (Full frame) and K-S1 (APS-C) posses totally different sensor sizes.
Samsung Releases Faster Versions of EVO MicroSD CardsThe K-1 II was introduced 3 years later than the K-S1 and that is a fairly large difference as far as camera tech is concerned. Both the cameras feature the same body design (Mid-size SLR).
Before delving right into a in-depth comparison, here is a simple introduction of how the K-1 II grades against the K-S1 for portability, imaging, features and an overall rating.
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This is a preview of the gallery photos for Pentax K-1 Mark II & Pentax K-S1. The whole galleries are available at Pentax K-1 II Gallery & Pentax K-S1 Gallery.
Reasons to pick Pentax K-1 II over the Pentax K-S1
| K-1 II | K-S1 | |||
|---|---|---|---|---|
| Released | February 2018 | August 2014 | Fresher by 43 months | |
| Screen type | Fully Articulated | Fixed | Fully Articulating screen | |
| Screen size | 3.2" | 3" | Bigger screen (+0.2") | |
| Screen resolution | 1037k | 921k | Sharper screen (+116k dot) |
Reasons to pick Pentax K-S1 over the Pentax K-1 II
| K-S1 | K-1 II |
|---|
Common features in the Pentax K-1 II and Pentax K-S1
| K-1 II | K-S1 | |||
|---|---|---|---|---|
| Focus manually | Dial precise focus | |||
| Selfie screen | Absent selfie screen | |||
| Touch screen | Absent Touch screen |
Pentax K-1 II vs Pentax K-S1 Physical Comparison
For anyone who is looking to carry your camera regularly, you'll need to consider its weight and volume. The Pentax K-1 II has got physical dimensions of 137mm x 110mm x 86mm (5.4" x 4.3" x 3.4") accompanied by a weight of 1010 grams (2.23 lbs) and the Pentax K-S1 has sizing of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") and a weight of 558 grams (1.23 lbs).
Analyze the Pentax K-1 II vs Pentax K-S1 in our newest Camera & Lens Size Comparison Tool.
Bear in mind, the weight of an ILC will vary depending on the lens you select at that moment. Below is a front view measurements comparison of the K-1 II against the K-S1.

Looking at size and weight, the portability rating of the K-1 II and K-S1 is 55 and 69 respectively.
Pentax K-1 II vs Pentax K-S1 Sensor Comparison
Often, it is hard to envision the gap in sensor sizing simply by looking through technical specs. The graphic below might offer you a greater sense of the sensor sizes in the K-1 II and K-S1.
As you have seen, both of these cameras come with different resolutions and different sensor sizing. The K-1 II with its bigger sensor will make achieving shallower DOF easier and the Pentax K-1 II will result in extra detail using its extra 16 Megapixels. Higher resolution can also enable you to crop photographs a good deal more aggressively. The younger K-1 II will have an edge with regard to sensor innovation.
Pentax K-1 II vs Pentax K-S1 Screen and ViewFinder
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Pentax K-1 II vs Pentax K-S1 Specifications
| Pentax K-1 Mark II | Pentax K-S1 | |
|---|---|---|
| General Information | ||
| Manufacturer | Pentax | Pentax |
| Model type | Pentax K-1 Mark II | Pentax K-S1 |
| Class | Advanced DSLR | Advanced DSLR |
| Introduced | 2018-02-22 | 2014-08-27 |
| Physical type | Mid-size SLR | Mid-size SLR |
| Sensor Information | ||
| Processor Chip | PRIME IV | Prime MII |
| Sensor type | CMOS | CMOS |
| Sensor size | Full frame | APS-C |
| Sensor measurements | 35.9 x 24mm | 23.5 x 15.6mm |
| Sensor surface area | 861.6mm² | 366.6mm² |
| Sensor resolution | 36MP | 20MP |
| Anti alias filter | ||
| Aspect ratio | 3:2 | 3:2 |
| Full resolution | 7360 x 4912 | 5472 x 3648 |
| Max native ISO | 819200 | 51200 |
| Minimum native ISO | 100 | 100 |
| RAW pictures | ||
| Autofocusing | ||
| Focus manually | ||
| AF touch | ||
| Continuous AF | ||
| Single AF | ||
| AF tracking | ||
| AF selectice | ||
| AF center weighted | ||
| AF multi area | ||
| Live view AF | ||
| Face detect AF | ||
| Contract detect AF | ||
| Phase detect AF | ||
| Total focus points | 33 | 11 |
| Cross type focus points | 25 | - |
| Lens | ||
| Lens support | Pentax KAF4 | Pentax KAF2 |
| Total lenses | 151 | 151 |
| Focal length multiplier | 1 | 1.5 |
| Screen | ||
| Display type | Fully Articulated | Fixed Type |
| Display diagonal | 3.2 inch | 3 inch |
| Resolution of display | 1,037 thousand dots | 921 thousand dots |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Viewfinder Information | ||
| Viewfinder | Optical (pentaprism) | Optical (pentaprism) |
| Viewfinder coverage | 100% | 100% |
| Viewfinder magnification | 0.7x | 0.64x |
| Features | ||
| Slowest shutter speed | 30s | 30s |
| Maximum shutter speed | 1/8000s | 1/6000s |
| Continuous shooting rate | 4.4 frames/s | 5.4 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Manual mode | ||
| Exposure compensation | Yes | Yes |
| Change WB | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash distance | no built-in flash | 10.00 m (at ISO 100) |
| Flash modes | Auto Flash Discharge, Auto Flash + Red-eye Reduction, 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, auto + redeye, on, on + redeye reduction, slow sync, trailing curtain sync, manual |
| Hot shoe | ||
| AEB | ||
| White balance bracketing | ||
| Maximum flash synchronize | 1/200s | - |
| Exposure | ||
| Multisegment metering | ||
| Average metering | ||
| Spot metering | ||
| Partial metering | ||
| AF area metering | ||
| Center weighted metering | ||
| Video features | ||
| Video resolutions | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) | 1920 x 1080 (30,25,24 fps), 1280 x 720 (60,50 fps) |
| Max video resolution | 1920x1080 | 1920x1080 |
| Video format | MPEG-4, H.264 | H.264 |
| Microphone port | ||
| Headphone port | ||
| Connectivity | ||
| Wireless | Auto Flash Discharge, Auto Flash + Red-eye Reduction, 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 | Eye-Fi Connected |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | Built-in | Optional |
| Physical | ||
| Environmental sealing | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 1010 grams (2.23 lbs) | 558 grams (1.23 lbs) |
| Physical dimensions | 137 x 110 x 86mm (5.4" x 4.3" x 3.4") | 121 x 93 x 70mm (4.8" x 3.7" x 2.8") |
| DXO scores | ||
| DXO All around rating | not tested | 78 |
| DXO Color Depth rating | not tested | 23.5 |
| DXO Dynamic range rating | not tested | 13.0 |
| DXO Low light rating | not tested | 1061 |
| Other | ||
| Battery life | 670 pictures | 410 pictures |
| Battery type | Battery Pack | Battery Pack |
| Battery ID | D-LI90 | D-LI109 |
| Self timer | Yes (2 or 12 sec, custom) | Yes ( 2 or 12 seconds) |
| Time lapse recording | ||
| Type of storage | Dual SD/SDHC/SDXC (UHS-I) | SD/SDHC/SDXC |
| Card slots | Two | 1 |
| Retail cost | $1,737 | $339 |