Nikon S3100 vs Pentax 645D
96 Imaging
37 Features
23 Overall
31
50 Imaging
76 Features
52 Overall
66
Nikon S3100 vs Pentax 645D Key Specs
(Full Review)
- 14MP - 1/2.3" Sensor
- 2.7" Fixed Screen
- ISO 80 - 3200
- 1280 x 720 video
- 26-130mm (F3.2-6.5) lens
- 118g - 94 x 58 x 18mm
- Launched February 2011
(Full Review)
- 40MP - Medium format Sensor
- 3" Fixed Screen
- ISO 200 - 1600
- No Anti-Alias Filter
- No Video
- Pentax 645AF2 Mount
- 1480g - 156 x 117 x 119mm
- Revealed March 2010
- Replacement is Pentax 645Z
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Its time to look a bit more closely at the Nikon S3100 vs Pentax 645D, former is a Ultracompact while the latter is a Pro DSLR by manufacturers Nikon and Pentax. There exists a sizable gap between the sensor resolutions of the S3100 (14MP) and 645D (40MP) and the S3100 (1/2.3") and 645D (Medium format) use totally different sensor sizing.
Body cameras now worn by bakery staff to deter stealingThe S3100 was manufactured 12 months after the 645D so they are of a similar age. Both of these cameras come with different body type with the Nikon S3100 being a Ultracompact camera and the Pentax 645D being a Large SLR camera.
Before delving straight into a in depth comparison, below is a concise synopsis of how the S3100 matches up versus the 645D with regards to portability, imaging, features and an overall mark.
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The following is a preview of the gallery photos for Nikon Coolpix S3100 & Pentax 645D. The entire galleries are provided at Nikon S3100 Gallery & Pentax 645D Gallery.
Reasons to pick Nikon S3100 over the Pentax 645D
| S3100 | 645D | |||
|---|---|---|---|---|
| Revealed | February 2011 |  | March 2010 | Newer by 12 months |
Reasons to pick Pentax 645D over the Nikon S3100
| 645D | S3100 | |||
|---|---|---|---|---|
| Manual focus |  | More precise focusing | ||
| Screen dimension | 3" |  | 2.7" | Bigger screen (+0.3") |
| Screen resolution | 921k |  | 230k | Crisper screen (+691k dot) |
Common features in the Nikon S3100 and Pentax 645D
| S3100 | 645D | |||
|---|---|---|---|---|
| Screen type | Fixed |  | Fixed | Fixed screen |
| Selfie screen |  | Lacking selfie screen | ||
| Touch friendly screen |  | Neither contains Touch friendly screen |
Nikon S3100 vs Pentax 645D Physical Comparison
If you are looking to travel with your camera, you will need to factor in its weight and proportions. The Nikon S3100 has got outside dimensions of 94mm x 58mm x 18mm (3.7" x 2.3" x 0.7") and a weight of 118 grams (0.26 lbs) and the Pentax 645D has measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") having a weight of 1480 grams (3.26 lbs).
Contrast the Nikon S3100 vs Pentax 645D in our brand new Camera & Lens Size Comparison Tool.
Bear in mind, the weight of an ILC will differ based on the lens you choose during that time. Underneath is the front view scale comparison of the S3100 vs the 645D.
Considering dimensions and weight, the portability score of the S3100 and 645D is 96 and 50 respectively.
Nikon S3100 vs Pentax 645D Sensor Comparison
Normally, it can be tough to visualise the gap between sensor dimensions only by going over a spec sheet. The pic here should provide you a stronger sense of the sensor sizes in the S3100 and 645D.
Clearly, both of the cameras posses different megapixel count and different sensor dimensions. The S3100 because of its tinier sensor will make achieving bokeh harder and the Pentax 645D will offer you more detail due to its extra 26MP. Higher resolution will also allow you to crop pictures somewhat more aggressively. The more modern S3100 is going to have an advantage in sensor innovation.
Nikon S3100 vs Pentax 645D Screen and ViewFinder
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Nikon S3100 vs Pentax 645D Specifications
| Nikon Coolpix S3100 | Pentax 645D | |
|---|---|---|
| General Information | ||
| Make | Nikon | Pentax |
| Model type | Nikon Coolpix S3100 | Pentax 645D |
| Class | Ultracompact | Pro DSLR |
| Launched | 2011-02-09 | 2010-03-10 |
| Body design | Ultracompact | Large SLR |
| Sensor Information | ||
| Chip | Expeed C2 | Prime II |
| Sensor type | CCD | CCD |
| Sensor size | 1/2.3" | Medium format |
| Sensor dimensions | 6.17 x 4.55mm | 44 x 33mm |
| Sensor area | 28.1mm² | 1,452.0mm² |
| Sensor resolution | 14MP | 40MP |
| Anti alias filter | ||
| Aspect ratio | - | 4:3 |
| Maximum resolution | 4320 x 3240 | 7264 x 5440 |
| Maximum native ISO | 3200 | 1600 |
| Minimum native ISO | 80 | 200 |
| RAW data | ||
| Minimum boosted ISO | - | 100 |
| Autofocusing | ||
| Manual focusing | ||
| Touch to focus | ||
| Continuous AF | ||
| AF single | ||
| Tracking AF | ||
| Selective AF | ||
| AF center weighted | ||
| AF multi area | ||
| AF live view | ||
| Face detection focusing | ||
| Contract detection focusing | ||
| Phase detection focusing | ||
| Total focus points | 9 | 11 |
| Lens | ||
| Lens mount type | fixed lens | Pentax 645AF2 |
| Lens zoom range | 26-130mm (5.0x) | - |
| Highest aperture | f/3.2-6.5 | - |
| Macro focusing distance | 10cm | - |
| Amount of lenses | - | 6 |
| Crop factor | 5.8 | 0.8 |
| Screen | ||
| Range of screen | Fixed Type | Fixed Type |
| Screen diagonal | 2.7" | 3" |
| Screen resolution | 230 thousand dot | 921 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch function | ||
| Screen technology | TFT LCD | TFT Color LCD with wide-viewing angle and with AR coating |
| Viewfinder Information | ||
| Viewfinder type | None | Optical (pentaprism) |
| Viewfinder coverage | - | 98% |
| Viewfinder magnification | - | 0.85x |
| Features | ||
| Lowest shutter speed | 4s | 30s |
| Highest shutter speed | 1/2000s | 1/4000s |
| Continuous shooting speed | 1.0 frames/s | 1.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Manual exposure | ||
| Exposure compensation | - | Yes |
| Set WB | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | 4.50 m | no built-in flash |
| Flash settings | Auto, On, Off, Red-Eye | Auto, On, Off, Red-eye, Slow Sync, Rear Curtain |
| External flash | ||
| AE bracketing | ||
| White balance bracketing | ||
| Highest flash sync | - | 1/125s |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Supported video resolutions | 1280 x 720p (30fps), 640 x 480 (30fps) | - |
| Maximum video resolution | 1280x720 | None |
| Video format | Motion JPEG | - |
| Mic input | ||
| Headphone input | ||
| Connectivity | ||
| Wireless | None | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | None |
| Physical | ||
| Environment seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 118g (0.26 lbs) | 1480g (3.26 lbs) |
| Dimensions | 94 x 58 x 18mm (3.7" x 2.3" x 0.7") | 156 x 117 x 119mm (6.1" x 4.6" x 4.7") |
| DXO scores | ||
| DXO All around rating | not tested | 82 |
| DXO Color Depth rating | not tested | 24.6 |
| DXO Dynamic range rating | not tested | 12.6 |
| DXO Low light rating | not tested | 1262 |
| Other | ||
| Battery life | 220 shots | 800 shots |
| Form of battery | Battery Pack | Battery Pack |
| Battery ID | EN-EL19 | D-LI90 |
| Self timer | Yes (10 or 2 sec) | Yes (2 or 10 sec) |
| Time lapse shooting | ||
| Storage media | SD / SDHC/SDXC | SD/SDHC |
| Storage slots | 1 | Dual |
| Price at launch | $139 | $4,000 |
