Olympus E-M5 II vs Sony A100
80 Imaging
53 Features
84 Overall
65
64 Imaging
48 Features
38 Overall
44
Olympus E-M5 II vs Sony A100 Key Specs
(Full Review)
- 16MP - Four Thirds Sensor
- 3" Fully Articulated Display
- ISO 200 - 25600
- Sensor based 5-axis Image Stabilization
- 1/8000s Maximum Shutter
- 1920 x 1080 video
- Micro Four Thirds Mount
- 469g - 124 x 85 x 45mm
- Introduced February 2015
- Succeeded the Olympus E-M5
- Refreshed by Olympus E-M5 III
(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
- Announced July 2006
- Old Model is Konica Minolta 5D
- Refreshed by Sony A550
Photography Glossary Olympus E-M5 II vs Sony A100 Overview
Following is a complete comparison of the Olympus E-M5 II vs Sony A100, former is a Advanced Mirrorless while the other is a Entry-Level DSLR by competitors Olympus and Sony. There is a sizable difference between the sensor resolutions of the E-M5 II (16MP) and A100 (10MP) and the E-M5 II (Four Thirds) and A100 (APS-C) posses different sensor size.
Sora from OpenAI releases its first ever music videoThe E-M5 II was introduced 8 years after the A100 which is quite a significant difference as far as tech is concerned. Both of these cameras have different body design with the Olympus E-M5 II being a SLR-style mirrorless camera and the Sony A100 being a Compact SLR camera.
Before going into a more detailed comparison, here is a short highlight of how the E-M5 II grades versus the A100 in relation to portability, imaging, features and an overall score.
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The following is a sample of the gallery pics for Olympus OM-D E-M5 II & Sony Alpha DSLR-A100. The whole galleries are viewable at Olympus E-M5 II Gallery & Sony A100 Gallery.
Reasons to pick Olympus E-M5 II over the Sony A100
| E-M5 II | A100 | |||
|---|---|---|---|---|
| Announced | February 2015 | July 2006 | More modern by 104 months | |
| Display type | Fully Articulated | Fixed | Fully Articulating display | |
| Display dimensions | 3" | 2.5" | Larger display (+0.5") | |
| Display resolution | 1037k | 230k | Sharper display (+807k dot) | |
| Selfie screen | Take selfies | |||
| Touch friendly display | Easily navigate |
Reasons to pick Sony A100 over the Olympus E-M5 II
| A100 | E-M5 II |
|---|
Common features in the Olympus E-M5 II and Sony A100
| E-M5 II | A100 | |||
|---|---|---|---|---|
| Manually focus | Dial precise focus |
Olympus E-M5 II vs Sony A100 Physical Comparison
In case you're looking to carry around your camera frequently, you have to think about its weight and size. The Olympus E-M5 II has exterior dimensions of 124mm x 85mm x 45mm (4.9" x 3.3" x 1.8") and a weight of 469 grams (1.03 lbs) while the Sony A100 has specifications of 133mm x 95mm x 71mm (5.2" x 3.7" x 2.8") along with a weight of 638 grams (1.41 lbs).
Look at the Olympus E-M5 II vs Sony A100 in our brand new Camera & Lens Size Comparison Tool.
Remember, the weight of an ILC will differ based on the lens you are working with during that time. Following is a front view dimension comparison of the E-M5 II and the A100.

Taking into consideration size and weight, the portability score of the E-M5 II and A100 is 80 and 64 respectively.
Olympus E-M5 II vs Sony A100 Sensor Comparison
In many cases, it is tough to picture the gap between sensor sizes purely by reading specs. The pic below will give you a more clear sense of the sensor dimensions in the E-M5 II and A100.
As you can plainly see, both of these cameras have different resolutions and different sensor sizes. The E-M5 II having a tinier sensor is going to make getting shallow depth of field more challenging and the Olympus E-M5 II will deliver extra detail using its extra 6 Megapixels. Greater resolution can also enable you to crop pics a bit more aggressively. The younger E-M5 II should have an advantage with regard to sensor tech.
Olympus E-M5 II vs Sony A100 Screen and ViewFinder
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Olympus E-M5 II vs Sony A100 Specifications
| Olympus OM-D E-M5 II | Sony Alpha DSLR-A100 | |
|---|---|---|
| General Information | ||
| Brand Name | Olympus | Sony |
| Model type | Olympus OM-D E-M5 II | Sony Alpha DSLR-A100 |
| Class | Advanced Mirrorless | Entry-Level DSLR |
| Introduced | 2015-02-06 | 2006-07-31 |
| Physical type | SLR-style mirrorless | Compact SLR |
| Sensor Information | ||
| Powered by | TruePic VII | - |
| Sensor type | MOS | CCD |
| Sensor size | Four Thirds | APS-C |
| Sensor dimensions | 17.3 x 13mm | 23.6 x 15.8mm |
| Sensor area | 224.9mm² | 372.9mm² |
| Sensor resolution | 16 megapixel | 10 megapixel |
| Anti alias filter | ||
| Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 3:2 |
| Highest resolution | 4608 x 3456 | 3872 x 2592 |
| Highest native ISO | 25600 | 1600 |
| Lowest native ISO | 200 | 100 |
| RAW format | ||
| Lowest boosted ISO | 100 | - |
| Autofocusing | ||
| Focus manually | ||
| Autofocus touch | ||
| Continuous autofocus | ||
| Single autofocus | ||
| Autofocus tracking | ||
| Autofocus selectice | ||
| Autofocus center weighted | ||
| Autofocus multi area | ||
| Live view autofocus | ||
| Face detect focus | ||
| Contract detect focus | ||
| Phase detect focus | ||
| Total focus points | 81 | 9 |
| Lens | ||
| Lens mount type | Micro Four Thirds | Sony/Minolta Alpha |
| Number of lenses | 107 | 143 |
| Crop factor | 2.1 | 1.5 |
| Screen | ||
| Display type | Fully Articulated | Fixed Type |
| Display sizing | 3 inches | 2.5 inches |
| Resolution of display | 1,037k dots | 230k dots |
| Selfie friendly | ||
| Liveview | ||
| Touch operation | ||
| Viewfinder Information | ||
| Viewfinder type | Electronic | Optical (pentamirror) |
| Viewfinder resolution | 2,360k dots | - |
| Viewfinder coverage | 100 percent | 95 percent |
| Viewfinder magnification | 0.74x | 0.55x |
| Features | ||
| Slowest shutter speed | 60s | 30s |
| Maximum shutter speed | 1/8000s | 1/4000s |
| Maximum quiet shutter speed | 1/16000s | - |
| Continuous shooting rate | 10.0 frames per second | 3.0 frames per second |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | Yes | Yes |
| Change white balance | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | no built-in flash | - |
| Flash modes | Auto, redeye, fill, off, redeye slow sync, slow sync, 2nd-curtain slow sync, manual | Auto, Fill-in, Red-Eye reduction, Slow Sync, Off |
| Hot shoe | ||
| AE bracketing | ||
| White balance bracketing | ||
| Maximum flash synchronize | 1/250s | 1/160s |
| Exposure | ||
| Multisegment | ||
| Average | ||
| Spot | ||
| Partial | ||
| AF area | ||
| Center weighted | ||
| Video features | ||
| Video resolutions | 1920 x 1080 (60p, 50p, 30p, 25p, 24p), 1280 x 720 (60p, 50p, 30p, 25p, 24p), 640 x 480 (30p) | - |
| Highest video resolution | 1920x1080 | None |
| Video data format | MPEG-4, H.264, Motion JPEG | - |
| Mic 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 | None | None |
| Physical | ||
| Environment sealing | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 469g (1.03 lbs) | 638g (1.41 lbs) |
| Physical dimensions | 124 x 85 x 45mm (4.9" x 3.3" x 1.8") | 133 x 95 x 71mm (5.2" x 3.7" x 2.8") |
| DXO scores | ||
| DXO All around rating | 73 | 61 |
| DXO Color Depth rating | 23.0 | 22.0 |
| DXO Dynamic range rating | 12.4 | 11.2 |
| DXO Low light rating | 896 | 476 |
| Other | ||
| Battery life | 310 shots | - |
| Battery style | Battery Pack | - |
| Battery ID | BLN-1 | NP-FM55H |
| Self timer | Yes (2 or 10 secs, custom) | Yes (2 or 10 sec) |
| Time lapse feature | ||
| Type of storage | SD/SDHC/SDXC | Compact Flash (Type I or II) |
| Card slots | 1 | 1 |
| Cost at launch | $699 | $1,000 |