Pentax K-7 vs Pentax S1
60 Imaging
54 Features
69 Overall
60
93 Imaging
37 Features
31 Overall
34
Pentax K-7 vs Pentax S1 Key Specs
(Full Review)
- 15MP - APS-C Sensor
- 3" Fixed Display
- ISO 100 - 2000 (Boost to 6400)
- Sensor based Image Stabilization
- 1/8000s Max Shutter
- 1280 x 720 video
- Pentax KAF2 Mount
- 750g - 131 x 97 x 73mm
- Revealed October 2009
- Replacement is Pentax K-5
(Full Review)
- 14MP - 1/2.3" Sensor
- 2.7" Fixed Display
- ISO 80 - 6400
- Sensor-shift Image Stabilization
- 1280 x 720 video
- 28-140mm (F3.5-5.5) lens
- 157g - 114 x 58 x 28mm
- Announced March 2011
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Its time to look more closely at the Pentax K-7 and Pentax S1, former is a Advanced DSLR while the other is a Small Sensor Compact and both are sold by Pentax. The image resolution of the K-7 (15MP) and the S1 (14MP) is very well matched but the K-7 (APS-C) and S1 (1/2.3") offer totally different sensor measurements.
President Biden pushes bill mandating TikTok sale or banThe K-7 was unveiled 17 months prior to the S1 making them a generation away from one another. Both the cameras feature different body design with the Pentax K-7 being a Mid-size SLR camera and the Pentax S1 being a Compact camera.
Before going into a full comparison, here is a simple overview of how the K-7 matches up versus the S1 with regard to portability, imaging, features and an overall mark.
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Reasons to pick Pentax K-7 over the Pentax S1
| K-7 | S1 | |||
|---|---|---|---|---|
| Display size | 3" | 2.7" | Larger display (+0.3") | |
| Display resolution | 921k | 230k | Crisper display (+691k dot) |
Reasons to pick Pentax S1 over the Pentax K-7
| S1 | K-7 | |||
|---|---|---|---|---|
| Announced | March 2011 | October 2009 | Newer by 17 months |
Common features in the Pentax K-7 and Pentax S1
| K-7 | S1 | |||
|---|---|---|---|---|
| Manual focus | More exact focus | |||
| Display type | Fixed | Fixed | Fixed display | |
| Selfie screen | No selfie screen | |||
| Touch friendly display | No Touch friendly display |
Pentax K-7 vs Pentax S1 Physical Comparison
If you're looking to travel with your camera regularly, you're going to have to think about its weight and proportions. The Pentax K-7 has got outside dimensions of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") having a weight of 750 grams (1.65 lbs) and the Pentax S1 has measurements of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") having a weight of 157 grams (0.35 lbs).
Look at the Pentax K-7 and Pentax S1 in our brand new Camera & Lens Size Comparison Tool.
Take into consideration, the weight of an ILC will change dependant on the lens you are using at the time. Following is a front view overall size comparison of the K-7 compared to the S1.

Considering dimensions and weight, the portability score of the K-7 and S1 is 60 and 93 respectively.
Pentax K-7 vs Pentax S1 Sensor Comparison
Quite often, its tough to see the contrast between sensor dimensions just by looking at specs. The picture below will help offer you a better sense of the sensor sizes in the K-7 and S1.
All in all, the 2 cameras feature different megapixel count and different sensor dimensions. The K-7 having a larger sensor will make achieving bokeh easier and the Pentax K-7 will give more detail having an extra 1MP. Greater resolution will also make it easier to crop images way more aggressively. The more aged K-7 is going to be behind with regard to sensor tech.
Pentax K-7 vs Pentax S1 Screen and ViewFinder
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Pentax K-7 vs Pentax S1 Specifications
| Pentax K-7 | Pentax Optio S1 | |
|---|---|---|
| General Information | ||
| Manufacturer | Pentax | Pentax |
| Model type | Pentax K-7 | Pentax Optio S1 |
| Class | Advanced DSLR | Small Sensor Compact |
| Revealed | 2009-10-02 | 2011-03-02 |
| Physical type | Mid-size SLR | Compact |
| Sensor Information | ||
| Powered by | Prime II | - |
| Sensor type | CMOS | CCD |
| Sensor size | APS-C | 1/2.3" |
| Sensor measurements | 23.4 x 15.6mm | 6.17 x 4.55mm |
| Sensor surface area | 365.0mm² | 28.1mm² |
| Sensor resolution | 15MP | 14MP |
| Anti alias filter | ||
| Aspect ratio | 3:2 | 1:1, 4:3 and 16:9 |
| Maximum resolution | 4672 x 3104 | 4288 x 3216 |
| Maximum native ISO | 2000 | 6400 |
| Maximum boosted ISO | 6400 | - |
| Min native ISO | 100 | 80 |
| RAW images | ||
| Autofocusing | ||
| Focus manually | ||
| AF touch | ||
| AF continuous | ||
| AF single | ||
| AF tracking | ||
| AF selectice | ||
| AF center weighted | ||
| Multi area AF | ||
| Live view AF | ||
| Face detect AF | ||
| Contract detect AF | ||
| Phase detect AF | ||
| Total focus points | 11 | 9 |
| Lens | ||
| Lens mount type | Pentax KAF2 | fixed lens |
| Lens zoom range | - | 28-140mm (5.0x) |
| Maximal aperture | - | f/3.5-5.5 |
| Macro focusing range | - | 1cm |
| Number of lenses | 151 | - |
| Focal length multiplier | 1.5 | 5.8 |
| Screen | ||
| Display type | Fixed Type | Fixed Type |
| Display size | 3" | 2.7" |
| Resolution of display | 921 thousand dots | 230 thousand dots |
| Selfie friendly | ||
| Liveview | ||
| Touch capability | ||
| Display tech | TFT color LCD with AR coating | TFT color LCD with Anti-reflective coating |
| Viewfinder Information | ||
| Viewfinder | Optical (pentaprism) | None |
| Viewfinder coverage | 100% | - |
| Viewfinder magnification | 0.61x | - |
| Features | ||
| Slowest shutter speed | 30 seconds | 4 seconds |
| Maximum shutter speed | 1/8000 seconds | 1/1500 seconds |
| Continuous shooting rate | 5.0 frames/s | 1.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | - |
| Set WB | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | 13.00 m | 3.90 m |
| Flash settings | Auto, On, Off, Red-eye, Slow Sync, Rear Curtain, Wireless | Auto, On, Off, Red-eye, Soft |
| External flash | ||
| AEB | ||
| WB bracketing | ||
| Maximum flash synchronize | 1/180 seconds | - |
| Exposure | ||
| Multisegment metering | ||
| Average metering | ||
| Spot metering | ||
| Partial metering | ||
| AF area metering | ||
| Center weighted metering | ||
| Video features | ||
| Video resolutions | 1280 x 720 (30 fps), 1536 x 1024 (30 fps), 640 x 480 (30 fps), 320 x 240 (30 fps) | 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) |
| Maximum video resolution | 1280x720 | 1280x720 |
| Video data format | Motion JPEG | Motion JPEG |
| Microphone port | ||
| Headphone port | ||
| Connectivity | ||
| Wireless | None | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | None |
| Physical | ||
| Environmental sealing | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 750g (1.65 lb) | 157g (0.35 lb) |
| Physical dimensions | 131 x 97 x 73mm (5.2" x 3.8" x 2.9") | 114 x 58 x 28mm (4.5" x 2.3" x 1.1") |
| DXO scores | ||
| DXO All around rating | 61 | not tested |
| DXO Color Depth rating | 22.6 | not tested |
| DXO Dynamic range rating | 10.6 | not tested |
| DXO Low light rating | 536 | not tested |
| Other | ||
| Battery life | 980 shots | 260 shots |
| Type of battery | Battery Pack | Battery Pack |
| Battery ID | D-LI90 | D-LI92 |
| Self timer | Yes (2 or 10 sec) | Yes (2 or 10 sec) |
| Time lapse recording | ||
| Type of storage | SD/SDHC/MMC | SD/SDHC/SDXC, Internal |
| Card slots | One | One |
| Retail pricing | $599 | $174 |