Nikon D5100 vs Sony A100
66 Imaging
56 Features
81 Overall
66
64 Imaging
48 Features
38 Overall
44
Nikon D5100 vs Sony A100 Key Specs
(Full Review)
- 16MP - APS-C Sensor
- 3" Fully Articulated Display
- ISO 100 - 6400 (Increase to 25600)
- 1920 x 1080 video
- Nikon F Mount
- 560g - 128 x 97 x 79mm
- Introduced April 2011
- Superseded the Nikon D5000
- New Model is Nikon D5200
(Full Review)
- 10MP - APS-C Sensor
- 2.5" Fixed Display
- ISO 100 - 1600
- Sensor based Image Stabilization
- No Video
- Sony/Minolta Alpha Mount
- 638g - 133 x 95 x 71mm
- Released July 2006
- Earlier Model is Konica Minolta 5D
- Newer Model is Sony A550
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Let's look a little more closely at the Nikon D5100 and Sony A100, both Entry-Level DSLR digital cameras by rivals Nikon and Sony. There exists a substantial gap between the sensor resolutions of the D5100 (16MP) and A100 (10MP) but they come with the same exact sensor sizes (APS-C).
Photography GlossaryThe D5100 was launched 4 years later than the A100 and that is quite a big difference as far as technology is concerned. The two cameras offer the identical body type (Compact SLR).
Before delving through a step-by-step comparison, below is a concise synopsis of how the D5100 scores against the A100 with regard to portability, imaging, features and an overall grade.
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Below is a sample of the gallery pictures for Nikon D5100 & Sony Alpha DSLR-A100. The complete galleries are viewable at Nikon D5100 Gallery & Sony A100 Gallery.
Reasons to pick Nikon D5100 over the Sony A100
| D5100 | A100 | |||
|---|---|---|---|---|
| Released | April 2011 |  | July 2006 | More recent by 58 months |
| Display type | Fully Articulated |  | Fixed | Fully Articulating display |
| Display sizing | 3" |  | 2.5" | Larger display (+0.5") |
| Display resolution | 921k |  | 230k | Clearer display (+691k dot) |
| Selfie screen |  | Easy selfies |
Reasons to pick Sony A100 over the Nikon D5100
| A100 | D5100 |
|---|
Common features in the Nikon D5100 and Sony A100
| D5100 | A100 | |||
|---|---|---|---|---|
| Manually focus |  | Dial accurate focusing | ||
| Touch display |  | Neither has Touch display |
Nikon D5100 vs Sony A100 Physical Comparison
In case you're planning to lug around your camera frequently, you'll need to take into account its weight and dimensions. The Nikon D5100 has outer dimensions of 128mm x 97mm x 79mm (5.0" x 3.8" x 3.1") accompanied by a weight of 560 grams (1.23 lbs) while the Sony A100 has dimensions of 133mm x 95mm x 71mm (5.2" x 3.7" x 2.8") along with a weight of 638 grams (1.41 lbs).
Analyze the Nikon D5100 and Sony A100 in our completely new Camera & Lens Size Comparison Tool.
Always remember, the weight of an ILC will vary based on the lens you have attached at the time. Underneath is the front view dimension comparison of the D5100 against the A100.
Looking at dimensions and weight, the portability rating of the D5100 and A100 is 66 and 64 respectively.
Nikon D5100 vs Sony A100 Sensor Comparison
Normally, it's difficult to imagine the gap between sensor measurements merely by going over specifications. The graphic underneath should give you a greater sense of the sensor sizes in the D5100 and A100.
To sum up, the two cameras offer the same exact sensor sizing but different megapixels. You can anticipate the Nikon D5100 to deliver greater detail utilizing its extra 6 Megapixels. Greater resolution can also allow you to crop pics a little more aggressively. The fresher D5100 should have an edge in sensor innovation.
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Nikon D5100 vs Sony A100 Specifications
| Nikon D5100 | Sony Alpha DSLR-A100 | |
|---|---|---|
| General Information | ||
| Company | Nikon | Sony |
| Model type | Nikon D5100 | Sony Alpha DSLR-A100 |
| Class | Entry-Level DSLR | Entry-Level DSLR |
| Introduced | 2011-04-26 | 2006-07-31 |
| Body design | Compact SLR | Compact SLR |
| Sensor Information | ||
| Processor Chip | Expeed 2 | - |
| Sensor type | CMOS | CCD |
| Sensor size | APS-C | APS-C |
| Sensor dimensions | 23.6 x 15.7mm | 23.6 x 15.8mm |
| Sensor area | 370.5mm² | 372.9mm² |
| Sensor resolution | 16 megapixels | 10 megapixels |
| Anti alias filter | ||
| Aspect ratio | 3:2 | 3:2 |
| Full resolution | 4928 x 3264 | 3872 x 2592 |
| Max native ISO | 6400 | 1600 |
| Max boosted ISO | 25600 | - |
| Lowest native ISO | 100 | 100 |
| RAW format | ||
| Autofocusing | ||
| Focus manually | ||
| Touch focus | ||
| Autofocus continuous | ||
| Autofocus single | ||
| Autofocus tracking | ||
| Selective autofocus | ||
| Center weighted autofocus | ||
| Multi area autofocus | ||
| Autofocus live view | ||
| Face detect autofocus | ||
| Contract detect autofocus | ||
| Phase detect autofocus | ||
| Total focus points | 11 | 9 |
| Cross type focus points | 1 | - |
| Lens | ||
| Lens mount type | Nikon F | Sony/Minolta Alpha |
| Total lenses | 309 | 143 |
| Crop factor | 1.5 | 1.5 |
| Screen | ||
| Display type | Fully Articulated | Fixed Type |
| Display diagonal | 3 inches | 2.5 inches |
| Resolution of display | 921 thousand dot | 230 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch functionality | ||
| Display technology | TFT LCD monitor | - |
| Viewfinder Information | ||
| Viewfinder | Optical (pentamirror) | Optical (pentamirror) |
| Viewfinder coverage | 95% | 95% |
| Viewfinder magnification | 0.52x | 0.55x |
| Features | ||
| Lowest shutter speed | 30 seconds | 30 seconds |
| Highest shutter speed | 1/4000 seconds | 1/4000 seconds |
| Continuous shooting speed | 4.0 frames per sec | 3.0 frames per sec |
| Shutter priority | ||
| Aperture priority | ||
| Manual exposure | ||
| Exposure compensation | Yes | Yes |
| Set white balance | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash distance | 12.00 m (at ISO 100) | - |
| Flash options | Auto, On, Off, Red-eye, Slow sync, Rear curtain | Auto, Fill-in, Red-Eye reduction, Slow Sync, Off |
| External flash | ||
| AEB | ||
| WB bracketing | ||
| Highest flash sync | 1/200 seconds | 1/160 seconds |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Video resolutions | 1920 x 1080 (30, 25, 24 fps), 1280 x 720 (30, 25, 24 fps), 640 x 424 (30, 25 fps) | - |
| Max video resolution | 1920x1080 | None |
| Video data format | MPEG-4 | - |
| Mic jack | ||
| Headphone jack | ||
| Connectivity | ||
| Wireless | Eye-Fi Connected | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | Optional | None |
| Physical | ||
| Environment seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 560 gr (1.23 lb) | 638 gr (1.41 lb) |
| Dimensions | 128 x 97 x 79mm (5.0" x 3.8" x 3.1") | 133 x 95 x 71mm (5.2" x 3.7" x 2.8") |
| DXO scores | ||
| DXO All around rating | 80 | 61 |
| DXO Color Depth rating | 23.5 | 22.0 |
| DXO Dynamic range rating | 13.6 | 11.2 |
| DXO Low light rating | 1183 | 476 |
| Other | ||
| Battery life | 660 photographs | - |
| Style of battery | Battery Pack | - |
| Battery ID | EN-EL14 | NP-FM55H |
| Self timer | Yes (2, 5, 10 or 20 sec) | Yes (2 or 10 sec) |
| Time lapse feature | ||
| Type of storage | SD/SDHC/SDXC | Compact Flash (Type I or II) |
| Storage slots | 1 | 1 |
| Retail pricing | $0 | $1,000 |