Pentax K-70 vs Sony G3
62 Imaging
66 Features
81 Overall
72
94 Imaging
32 Features
30 Overall
31
Pentax K-70 vs Sony G3 Key Specs
(Full Review)
- 24MP - APS-C Sensor
- 3" Fully Articulated Screen
- ISO 100 - 102400
- Sensor based Image Stabilization
- No Anti-Alias Filter
- 1/6000s Maximum Shutter
- 1920 x 1080 video
- Pentax KAF2 Mount
- 688g - 126 x 93 x 74mm
- Introduced June 2016
- Updated by Pentax KF
(Full Review)
- 10MP - 1/2.3" Sensor
- 3.5" Fixed Screen
- ISO 80 - 3200
- Optical Image Stabilization
- 640 x 480 video
- 35-140mm (F3.5-10.0) lens
- 185g - 97 x 59 x 22mm
- Launched January 2009
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Let's examine more closely at the Pentax K-70 versus Sony G3, one is a Entry-Level DSLR and the latter is a Small Sensor Compact by rivals Pentax and Sony. There is a significant difference between the resolutions of the K-70 (24MP) and G3 (10MP) and the K-70 (APS-C) and G3 (1/2.3") use totally different sensor size.
Sora from OpenAI releases its first ever music videoThe K-70 was released 7 years after the G3 which is quite a sizable gap as far as tech is concerned. Both of the cameras come with different body type with the Pentax K-70 being a Compact SLR camera and the Sony G3 being a Compact camera.
Before delving in to a in-depth comparison, below is a simple view of how the K-70 grades against the G3 in terms of portability, imaging, features and an overall mark.
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Following is a preview of the gallery photos for Pentax K-70 and Sony Cyber-shot DSC-G3. The complete galleries are viewable at Pentax K-70 Gallery and Sony G3 Gallery.
Reasons to pick Pentax K-70 over the Sony G3
| K-70 | G3 | |||
|---|---|---|---|---|
| Launched | June 2016 | January 2009 | Newer by 91 months | |
| Screen type | Fully Articulated | Fixed | Fully Articulating screen | |
| Selfie screen | Easy selfies |
Reasons to pick Sony G3 over the Pentax K-70
| G3 | K-70 | |||
|---|---|---|---|---|
| Screen dimension | 3.5" | 3" | Bigger screen (+0.5") | |
| Touch screen | Quickly navigate |
Common features in the Pentax K-70 and Sony G3
| K-70 | G3 | |||
|---|---|---|---|---|
| Manually focus | Dial precise focusing | |||
| Screen resolution | 921k | 921k | Equal screen resolution |
Pentax K-70 vs Sony G3 Physical Comparison
For anyone who is looking to travel with your camera, you'll need to take into account its weight and volume. The Pentax K-70 has got external measurements of 126mm x 93mm x 74mm (5.0" x 3.7" x 2.9") accompanied by a weight of 688 grams (1.52 lbs) whilst the Sony G3 has sizing of 97mm x 59mm x 22mm (3.8" x 2.3" x 0.9") along with a weight of 185 grams (0.41 lbs).
See the Pentax K-70 versus Sony G3 in the all new Camera with Lens Size Comparison Tool.
Keep in mind, the weight of an Interchangeable Lens Camera will change based on the lens you are working with at that time. Here is the front view dimensions comparison of the K-70 versus the G3.

Looking at size and weight, the portability grade of the K-70 and G3 is 62 and 94 respectively.
Pentax K-70 vs Sony G3 Sensor Comparison
Generally, it can be difficult to see the contrast between sensor dimensions only by reading through specifications. The pic here might give you a more clear sense of the sensor sizing in the K-70 and G3.
To sum up, both of these cameras posses different resolutions and different sensor dimensions. The K-70 featuring a bigger sensor will make shooting shallower depth of field less difficult and the Pentax K-70 will resolve more detail as a result of its extra 14 Megapixels. Higher resolution will let you crop shots somewhat more aggressively. The newer K-70 is going to have a benefit with regard to sensor technology.
Pentax K-70 vs Sony G3 Screen and ViewFinder
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Pentax K-70 vs Sony G3 Specifications
| Pentax K-70 | Sony Cyber-shot DSC-G3 | |
|---|---|---|
| General Information | ||
| Make | Pentax | Sony |
| Model | Pentax K-70 | Sony Cyber-shot DSC-G3 |
| Class | Entry-Level DSLR | Small Sensor Compact |
| Introduced | 2016-06-08 | 2009-01-08 |
| Physical type | Compact SLR | Compact |
| Sensor Information | ||
| Processor Chip | PRIME MII | - |
| Sensor type | CMOS | CCD |
| Sensor size | APS-C | 1/2.3" |
| Sensor measurements | 23.5 x 15.6mm | 6.17 x 4.55mm |
| Sensor area | 366.6mm² | 28.1mm² |
| Sensor resolution | 24 megapixel | 10 megapixel |
| Anti aliasing filter | ||
| Aspect ratio | 3:2 | 4:3, 3:2 and 16:9 |
| Highest Possible resolution | 6000 x 4000 | 3648 x 2736 |
| Maximum native ISO | 102400 | 3200 |
| Minimum native ISO | 100 | 80 |
| RAW images | ||
| Autofocusing | ||
| Manual focus | ||
| AF touch | ||
| AF continuous | ||
| Single AF | ||
| AF tracking | ||
| Selective AF | ||
| Center weighted AF | ||
| Multi area AF | ||
| AF live view | ||
| Face detection focusing | ||
| Contract detection focusing | ||
| Phase detection focusing | ||
| Number of focus points | 11 | 9 |
| Cross focus points | 9 | - |
| Lens | ||
| Lens mount | Pentax KAF2 | fixed lens |
| Lens focal range | - | 35-140mm (4.0x) |
| Largest aperture | - | f/3.5-10.0 |
| Total lenses | 151 | - |
| Focal length multiplier | 1.5 | 5.8 |
| Screen | ||
| Type of screen | Fully Articulated | Fixed Type |
| Screen sizing | 3 inch | 3.5 inch |
| Resolution of screen | 921k dots | 921k dots |
| Selfie friendly | ||
| Liveview | ||
| Touch function | ||
| Viewfinder Information | ||
| Viewfinder | Optical (pentaprism) | None |
| Viewfinder coverage | 100 percent | - |
| Viewfinder magnification | 0.63x | - |
| Features | ||
| Minimum shutter speed | 30 secs | 1 secs |
| Fastest shutter speed | 1/6000 secs | 1/1000 secs |
| Continuous shutter rate | 6.0 frames/s | 2.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | - |
| Set WB | ||
| Image stabilization | ||
| Inbuilt flash | ||
| Flash range | 12.00 m (at ISO 100) | 4.30 m (Auto ISO) |
| Flash modes | Auto, auto w/redeye reduction, flash on, flash + redeye reduction, slow sync, trailing curtain sync, manual | Auto, On, Off, Red-Eye reduction, Slow Sync |
| Hot shoe | ||
| AEB | ||
| WB bracketing | ||
| Exposure | ||
| Multisegment metering | ||
| Average metering | ||
| Spot metering | ||
| Partial metering | ||
| AF area metering | ||
| Center weighted metering | ||
| Video features | ||
| Supported video resolutions | 1920 x 1080 (60i, 50i, 30p, 25p, 24p), 1280 x 720 (60p, 50p) | 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps) |
| Maximum video resolution | 1920x1080 | 640x480 |
| Video data format | MPEG-4, H.264 | Motion JPEG |
| Microphone support | ||
| Headphone support | ||
| Connectivity | ||
| Wireless | Built-In | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | Optional | None |
| Physical | ||
| Environmental sealing | ||
| Water proof | ||
| Dust proof | ||
| Shock proof | ||
| Crush proof | ||
| Freeze proof | ||
| Weight | 688 gr (1.52 lb) | 185 gr (0.41 lb) |
| Dimensions | 126 x 93 x 74mm (5.0" x 3.7" x 2.9") | 97 x 59 x 22mm (3.8" x 2.3" x 0.9") |
| DXO scores | ||
| DXO Overall score | not tested | not tested |
| DXO Color Depth score | not tested | not tested |
| DXO Dynamic range score | not tested | not tested |
| DXO Low light score | not tested | not tested |
| Other | ||
| Battery life | 410 photos | - |
| Battery style | Battery Pack | - |
| Self timer | Yes (2 or 12 secs, continuous) | Yes (2 or 10 sec) |
| Time lapse recording | ||
| Storage type | SD/SDHC/SDXC (UHS-I compatible) | Memory Stick Duo/Pro Duo, Internal |
| Card slots | 1 | 1 |
| Launch cost | $649 | $200 |