Pentax S1 vs Sony A99
93 Imaging
36 Features
31 Overall
34
57 Imaging
68 Features
88 Overall
76
Pentax S1 vs Sony A99 Key Specs
(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
- Revealed March 2011
(Full Review)
- 24MP - Full frame Sensor
- 3" Fully Articulated Screen
- ISO 100 - 25600
- Sensor based Image Stabilization
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Sony/Minolta Alpha Mount
- 812g - 147 x 111 x 78mm
- Released December 2012
- Replaced the Sony A900
- Successor is Sony A99 II
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Lets look more closely at the Pentax S1 versus Sony A99, former being a Small Sensor Compact while the latter is a Advanced DSLR by competitors Pentax and Sony. There is a considerable difference among the resolutions of the S1 (14MP) and A99 (24MP) and the S1 (1/2.3") and A99 (Full frame) come with different sensor size.
Pentax 17 Pre-Orders Outperform Expectations by a LandslideThe S1 was introduced 21 months before the A99 which makes the cameras a generation apart from each other. Each of the cameras offer different body type with the Pentax S1 being a Compact camera and the Sony A99 being a Mid-size SLR camera.
Before delving through a complete comparison, below is a concise synopsis of how the S1 matches up versus the A99 in terms of portability, imaging, features and an overall grade.
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The following is a preview of the gallery photos for Pentax Optio S1 & Sony SLT-A99. The whole galleries are provided at Pentax S1 Gallery & Sony A99 Gallery.
Reasons to pick Pentax S1 over the Sony A99
| S1 | A99 |
|---|
Reasons to pick Sony A99 over the Pentax S1
| A99 | S1 | |||
|---|---|---|---|---|
| Released | December 2012 | March 2011 | More recent by 21 months | |
| Screen type | Fully Articulated | Fixed | Fully Articulating screen | |
| Screen sizing | 3" | 2.7" | Bigger screen (+0.3") | |
| Screen resolution | 1229k | 230k | Sharper screen (+999k dot) | |
| Selfie screen | Easy selfies |
Common features in the Pentax S1 and Sony A99
| S1 | A99 | |||
|---|---|---|---|---|
| Manual focus | More exact focus | |||
| Touch friendly screen | Absent Touch friendly screen |
Pentax S1 vs Sony A99 Physical Comparison
For those who are planning to lug around your camera regularly, you have to think about its weight and dimensions. The Pentax S1 has got exterior measurements of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") with a weight of 157 grams (0.35 lbs) while the Sony A99 has dimensions of 147mm x 111mm x 78mm (5.8" x 4.4" x 3.1") accompanied by a weight of 812 grams (1.79 lbs).
Look at the Pentax S1 versus Sony A99 in our brand new Camera plus Lens Size Comparison Tool.
Remember that, the weight of an ILC will vary based on the lens you have at that time. Underneath is the front view measurement comparison of the S1 against the A99.

Taking into account size and weight, the portability grade of the S1 and A99 is 93 and 57 respectively.
Pentax S1 vs Sony A99 Sensor Comparison
Often, it is very tough to visualize the gap in sensor measurements simply by seeing a spec sheet. The visual underneath will help provide you a greater sense of the sensor sizing in the S1 and A99.
Clearly, both of these cameras offer different megapixels and different sensor measurements. The S1 having a smaller sensor is going to make shooting shallower DOF trickier and the Sony A99 will show greater detail using its extra 10MP. Higher resolution will make it easier to crop pictures a little more aggressively. The older S1 will be behind in sensor technology.
Pentax S1 vs Sony A99 Screen and ViewFinder
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Pentax S1 vs Sony A99 Specifications
| Pentax Optio S1 | Sony SLT-A99 | |
|---|---|---|
| General Information | ||
| Company | Pentax | Sony |
| Model type | Pentax Optio S1 | Sony SLT-A99 |
| Category | Small Sensor Compact | Advanced DSLR |
| Revealed | 2011-03-02 | 2012-12-12 |
| Body design | Compact | Mid-size SLR |
| Sensor Information | ||
| Powered by | - | Bionz |
| Sensor type | CCD | CMOS |
| Sensor size | 1/2.3" | Full frame |
| Sensor dimensions | 6.17 x 4.55mm | 35.8 x 23.8mm |
| Sensor area | 28.1mm² | 852.0mm² |
| Sensor resolution | 14 megapixels | 24 megapixels |
| Anti alias filter | ||
| Aspect ratio | 1:1, 4:3 and 16:9 | 3:2 and 16:9 |
| Maximum resolution | 4288 x 3216 | 6000 x 4000 |
| Maximum native ISO | 6400 | 25600 |
| Min native ISO | 80 | 100 |
| RAW photos | ||
| Autofocusing | ||
| Focus manually | ||
| Touch focus | ||
| AF continuous | ||
| AF single | ||
| Tracking AF | ||
| Selective AF | ||
| AF center weighted | ||
| Multi area AF | ||
| AF live view | ||
| Face detect AF | ||
| Contract detect AF | ||
| Phase detect AF | ||
| Total focus points | 9 | 19 |
| Cross type focus points | - | 11 |
| Lens | ||
| Lens mount type | fixed lens | Sony/Minolta Alpha |
| Lens zoom range | 28-140mm (5.0x) | - |
| Largest aperture | f/3.5-5.5 | - |
| Macro focusing distance | 1cm | - |
| Number of lenses | - | 143 |
| Crop factor | 5.8 | 1 |
| Screen | ||
| Range of display | Fixed Type | Fully Articulated |
| Display diagonal | 2.7 inch | 3 inch |
| Resolution of display | 230 thousand dot | 1,229 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch screen | ||
| Display technology | TFT color LCD with Anti-reflective coating | TFT Xtra Fine color LCD |
| Viewfinder Information | ||
| Viewfinder | None | Electronic |
| Viewfinder resolution | - | 2,359 thousand dot |
| Viewfinder coverage | - | 100% |
| Viewfinder magnification | - | 0.71x |
| Features | ||
| Slowest shutter speed | 4 seconds | 30 seconds |
| Maximum shutter speed | 1/1500 seconds | 1/8000 seconds |
| Continuous shooting speed | 1.0fps | 10.0fps |
| Shutter priority | ||
| Aperture priority | ||
| Manual exposure | ||
| Exposure compensation | - | Yes |
| Set WB | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | 3.90 m | no built-in flash |
| Flash modes | Auto, On, Off, Red-eye, Soft | Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless |
| Hot shoe | ||
| AE bracketing | ||
| WB bracketing | ||
| Maximum flash sync | - | 1/250 seconds |
| Exposure | ||
| Multisegment metering | ||
| Average metering | ||
| Spot metering | ||
| Partial metering | ||
| AF area metering | ||
| Center weighted metering | ||
| Video features | ||
| Video resolutions | 1280 x 720 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) | 1920 x 1080 (60, 24 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps) |
| Maximum video resolution | 1280x720 | 1920x1080 |
| Video data format | Motion JPEG | MPEG-4, AVCHD, H.264 |
| Mic jack | ||
| Headphone jack | ||
| Connectivity | ||
| Wireless | None | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | BuiltIn |
| Physical | ||
| Environment seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 157 grams (0.35 pounds) | 812 grams (1.79 pounds) |
| Dimensions | 114 x 58 x 28mm (4.5" x 2.3" x 1.1") | 147 x 111 x 78mm (5.8" x 4.4" x 3.1") |
| DXO scores | ||
| DXO All around rating | not tested | 89 |
| DXO Color Depth rating | not tested | 25.0 |
| DXO Dynamic range rating | not tested | 14.0 |
| DXO Low light rating | not tested | 1555 |
| Other | ||
| Battery life | 260 images | 500 images |
| Battery form | Battery Pack | Battery Pack |
| Battery ID | D-LI92 | NP-FM500H |
| Self timer | Yes (2 or 10 sec) | Yes (2 or 10 sec) |
| Time lapse feature | ||
| Type of storage | SD/SDHC/SDXC, Internal | Memory Stick PRO Duo/Pro-HG Duo; SD, SDHC and SDXC |
| Storage slots | 1 | 2 |
| Retail price | $174 | $1,998 |