Olympus E-M1 II vs Sony A99
68 Imaging
59 Features
93 Overall
72


57 Imaging
69 Features
88 Overall
76
Olympus E-M1 II vs Sony A99 Key Specs
(Full Review)
- 20MP - Four Thirds Sensor
- 3" Fully Articulated Screen
- ISO 200 - 25600
- Sensor based 5-axis Image Stabilization
- No Anti-Alias Filter
- 1/8000s Maximum Shutter
- 4096 x 2160 video
- Micro Four Thirds Mount
- 574g - 134 x 91 x 67mm
- Introduced September 2016
- Superseded the Olympus E-M1
- Replacement is Olympus E-M1 III
(Full Review)
- 24MP - Full frame Sensor
- 3" Fully Articulated Display
- ISO 100 - 25600
- Sensor based Image Stabilization
- 1/8000s Max Shutter
- 1920 x 1080 video
- Sony/Minolta Alpha Mount
- 812g - 147 x 111 x 78mm
- Introduced December 2012
- Replaced the Sony A900
- Successor is Sony A99 II

Olympus E-M1 II vs Sony A99 Overview
Below, we are looking at the Olympus E-M1 II versus Sony A99, one being a Pro Mirrorless and the other is a Advanced DSLR by companies Olympus and Sony. The image resolution of the E-M1 II (20MP) and the A99 (24MP) is very well matched but the E-M1 II (Four Thirds) and A99 (Full frame) come with different sensor sizes.

The E-M1 II was announced 3 years later than the A99 and that is quite a significant gap as far as technology is concerned. Each of these cameras come with different body type with the Olympus E-M1 II being a SLR-style mirrorless camera and the Sony A99 being a Mid-size SLR camera.
Before getting straight into a step-by-step comparison, below is a simple summary of how the E-M1 II grades versus the A99 in relation to portability, imaging, features and an overall rating.

Olympus E-M1 II vs Sony A99 Gallery
This is a sample of the gallery pics for Olympus OM-D E-M1 Mark II and Sony SLT-A99. The whole galleries are provided at Olympus E-M1 II Gallery and Sony A99 Gallery.
Reasons to pick Olympus E-M1 II over the Sony A99
E-M1 II | A99 | |||
---|---|---|---|---|
Introduced | September 2016 | ![]() | December 2012 | Fresher by 46 months |
Touch friendly display | ![]() | Easily navigate |
Reasons to pick Sony A99 over the Olympus E-M1 II
A99 | E-M1 II | |||
---|---|---|---|---|
Display resolution | 1229k | ![]() | 1037k | Sharper display (+192k dot) |
Common features in the Olympus E-M1 II and Sony A99
E-M1 II | A99 | |||
---|---|---|---|---|
Manual focus | ![]() | Very precise focus | ||
Display type | Fully Articulated | ![]() | Fully Articulated | Fully Articulated display |
Display dimension | 3" | ![]() | 3" | Identical display dimensions |
Selfie screen | ![]() | Both are selfie friendly |
Olympus E-M1 II vs Sony A99 Physical Comparison
For anybody who is going to carry your camera frequently, you will have to think about its weight and dimensions. The Olympus E-M1 II features external measurements of 134mm x 91mm x 67mm (5.3" x 3.6" x 2.6") with a weight of 574 grams (1.27 lbs) and 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).
Compare the Olympus E-M1 II versus Sony A99 in the latest Camera and Lens Size Comparison Tool.
Don't forget, the weight of an Interchangeable Lens Camera will vary depending on the lens you are utilising at that time. Underneath is the front view measurement comparison of the E-M1 II and the A99.

Looking at dimensions and weight, the portability rating of the E-M1 II and A99 is 68 and 57 respectively.

Olympus E-M1 II vs Sony A99 Sensor Comparison
Quite often, it can be difficult to picture the gap between sensor sizing purely by checking specs. The photograph here may give you a more clear sense of the sensor sizing in the E-M1 II and A99.
All in all, both of the cameras have got different resolutions and different sensor sizing. The E-M1 II with its tinier sensor is going to make achieving bokeh more difficult and the Sony A99 will give you extra detail with its extra 4 Megapixels. Greater resolution will make it easier to crop images much more aggressively. The fresher E-M1 II provides an edge with regard to sensor innovation.

Olympus E-M1 II vs Sony A99 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Olympus E-M1 II vs Sony A99 Specifications
Olympus OM-D E-M1 Mark II | Sony SLT-A99 | |
---|---|---|
General Information | ||
Manufacturer | Olympus | Sony |
Model | Olympus OM-D E-M1 Mark II | Sony SLT-A99 |
Class | Pro Mirrorless | Advanced DSLR |
Introduced | 2016-09-19 | 2012-12-12 |
Body design | SLR-style mirrorless | Mid-size SLR |
Sensor Information | ||
Chip | TruePic VIII | Bionz |
Sensor type | CMOS | CMOS |
Sensor size | Four Thirds | Full frame |
Sensor measurements | 17.4 x 13mm | 35.8 x 23.8mm |
Sensor surface area | 226.2mm² | 852.0mm² |
Sensor resolution | 20 megapixels | 24 megapixels |
Anti aliasing filter | ||
Aspect ratio | 4:3 | 3:2 and 16:9 |
Full resolution | 5184 x 3888 | 6000 x 4000 |
Max native ISO | 25600 | 25600 |
Lowest native ISO | 200 | 100 |
RAW data | ||
Lowest boosted ISO | 64 | - |
Autofocusing | ||
Focus manually | ||
Touch to focus | ||
Continuous AF | ||
AF single | ||
Tracking AF | ||
AF selectice | ||
Center weighted AF | ||
AF multi area | ||
Live view AF | ||
Face detection focusing | ||
Contract detection focusing | ||
Phase detection focusing | ||
Number of focus points | 121 | 19 |
Cross focus points | - | 11 |
Lens | ||
Lens mount | Micro Four Thirds | Sony/Minolta Alpha |
Amount of lenses | 107 | 143 |
Crop factor | 2.1 | 1 |
Screen | ||
Screen type | Fully Articulated | Fully Articulated |
Screen diagonal | 3 inches | 3 inches |
Resolution of screen | 1,037 thousand dot | 1,229 thousand dot |
Selfie friendly | ||
Liveview | ||
Touch screen | ||
Screen tech | - | TFT Xtra Fine color LCD |
Viewfinder Information | ||
Viewfinder type | Electronic | Electronic |
Viewfinder resolution | 2,360 thousand dot | 2,359 thousand dot |
Viewfinder coverage | 100% | 100% |
Viewfinder magnification | 0.74x | 0.71x |
Features | ||
Slowest shutter speed | 60 seconds | 30 seconds |
Maximum shutter speed | 1/8000 seconds | 1/8000 seconds |
Maximum silent shutter speed | 1/32000 seconds | - |
Continuous shooting speed | 60.0fps | 10.0fps |
Shutter priority | ||
Aperture priority | ||
Manually set exposure | ||
Exposure compensation | Yes | Yes |
Custom WB | ||
Image stabilization | ||
Integrated flash | ||
Flash range | 9.10 m (at ISO 100) | no built-in flash |
Flash options | Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual | Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless |
External flash | ||
Auto exposure bracketing | ||
White balance bracketing | ||
Maximum flash sync | 1/250 seconds | 1/250 seconds |
Exposure | ||
Multisegment metering | ||
Average metering | ||
Spot metering | ||
Partial metering | ||
AF area metering | ||
Center weighted metering | ||
Video features | ||
Video resolutions | 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM, 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM | 1920 x 1080 (60, 24 fps), 1440 x 1080 (30fps), 640 x 424 (29.97 fps) |
Max video resolution | 4096x2160 | 1920x1080 |
Video format | MOV, H.264 | MPEG-4, AVCHD, H.264 |
Microphone jack | ||
Headphone jack | ||
Connectivity | ||
Wireless | Built-In | None |
Bluetooth | ||
NFC | ||
HDMI | ||
USB | USB 3.0 (5 GBit/sec) | USB 2.0 (480 Mbit/sec) |
GPS | None | BuiltIn |
Physical | ||
Environment seal | ||
Water proof | ||
Dust proof | ||
Shock proof | ||
Crush proof | ||
Freeze proof | ||
Weight | 574 gr (1.27 pounds) | 812 gr (1.79 pounds) |
Dimensions | 134 x 91 x 67mm (5.3" x 3.6" x 2.6") | 147 x 111 x 78mm (5.8" x 4.4" x 3.1") |
DXO scores | ||
DXO All around score | 80 | 89 |
DXO Color Depth score | 23.7 | 25.0 |
DXO Dynamic range score | 12.8 | 14.0 |
DXO Low light score | 1312 | 1555 |
Other | ||
Battery life | 350 photos | 500 photos |
Battery form | Battery Pack | Battery Pack |
Battery model | BLH-1 | NP-FM500H |
Self timer | Yes (2 or 12 secs, custom) | Yes (2 or 10 sec) |
Time lapse feature | ||
Type of storage | Dual SD/SDHC/SDXC slots | Memory Stick PRO Duo/Pro-HG Duo; SD, SDHC and SDXC |
Storage slots | Two | Two |
Pricing at launch | $1,700 | $1,998 |