Sony A9 vs YI M1
65 Imaging
73 Features
93 Overall
81
87 Imaging
59 Features
66 Overall
61
Sony A9 vs YI M1 Key Specs
(Full Review)
- 24MP - Full frame Sensor
- 3" Tilting Display
- ISO 100 - 51200 (Increase to 204800)
- Sensor based 5-axis Image Stabilization
- 1/8000s Maximum Shutter
- 3840 x 2160 video
- Sony E Mount
- 673g - 127 x 96 x 63mm
- Released April 2017
- Successor is Sony A9 II
(Full Review)
- 20MP - Four Thirds Sensor
- 3" Fixed Screen
- ISO 100 - 25600
- 4096 x 2160 video
- Micro Four Thirds Mount
- 350g - 114 x 64 x 34mm
- Launched September 2016
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Let's look a bit more closely at the Sony A9 versus YI M1, one is a Pro Mirrorless and the latter is a Entry-Level Mirrorless by companies Sony and YI. The image resolution of the A9 (24MP) and the M1 (20MP) is pretty well matched but the A9 (Full frame) and M1 (Four Thirds) enjoy totally different sensor sizes.
Photography GlossaryThe A9 was announced 8 months after the M1 and they are of a similar generation. Each of these cameras offer different body type with the Sony A9 being a SLR-style mirrorless camera and the YI M1 being a Rangefinder-style mirrorless camera.
Before diving in to a detailed comparison, below is a simple view of how the A9 scores against the M1 with regards to portability, imaging, features and an overall score.
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Following is a preview of the gallery images for Sony Alpha A9 and YI M1. The whole galleries are viewable at Sony A9 Gallery and YI M1 Gallery.
Reasons to pick Sony A9 over the YI M1
| A9 | M1 | |||
|---|---|---|---|---|
| Launched | April 2017 |  | September 2016 | More modern by 8 months |
| Screen type | Tilting |  | Fixed | Tilting screen |
| Screen resolution | 1440k |  | 1040k | Sharper screen (+400k dot) |
Reasons to pick YI M1 over the Sony A9
| M1 | A9 |
|---|
Common features in the Sony A9 and YI M1
| A9 | M1 | |||
|---|---|---|---|---|
| Focus manually |  | Dial precise focus | ||
| Screen sizing | 3" |  | 3" | Equivalent screen dimensions |
| Selfie screen |  | Lacking selfie screen | ||
| Touch friendly screen |  | Quickly navigate |
Sony A9 vs YI M1 Physical Comparison
For those who are planning to carry around your camera, you need to consider its weight and volume. The Sony A9 comes with outer measurements of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") accompanied by a weight of 673 grams (1.48 lbs) and the YI M1 has sizing of 114mm x 64mm x 34mm (4.5" x 2.5" x 1.3") with a weight of 350 grams (0.77 lbs).
Compare the Sony A9 versus YI M1 in the latest Camera and Lens Size Comparison Tool.
Do not forget, the weight of an Interchangeable Lens Camera will differ based on the lens you are using during that time. Following is the front view physical size comparison of the A9 against the M1.
Taking into account dimensions and weight, the portability grade of the A9 and M1 is 65 and 87 respectively.
Sony A9 vs YI M1 Sensor Comparison
Normally, its hard to see the contrast between sensor sizes just by checking a spec sheet. The image underneath may give you a stronger sense of the sensor sizing in the A9 and M1.
As you can see, both cameras offer different resolutions and different sensor sizes. The A9 having a bigger sensor will make achieving shallower DOF simpler and the Sony A9 will give greater detail with its extra 4MP. Higher resolution will also enable you to crop photographs a little more aggressively. The more modern A9 will have an edge in sensor tech.
Sony A9 vs YI M1 Screen and ViewFinder
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Sony A9 vs YI M1 Specifications
| Sony Alpha A9 | YI M1 | |
|---|---|---|
| General Information | ||
| Manufacturer | Sony | YI |
| Model type | Sony Alpha A9 | YI M1 |
| Type | Pro Mirrorless | Entry-Level Mirrorless |
| Released | 2017-04-19 | 2016-09-19 |
| Body design | SLR-style mirrorless | Rangefinder-style mirrorless |
| Sensor Information | ||
| Processor Chip | BIONZ X | - |
| Sensor type | BSI-CMOS | CMOS |
| Sensor size | Full frame | Four Thirds |
| Sensor dimensions | 35.6 x 23.8mm | 17.3 x 13mm |
| Sensor area | 847.3mm² | 224.9mm² |
| Sensor resolution | 24 megapixel | 20 megapixel |
| Anti alias filter | ||
| Aspect ratio | 3:2 and 16:9 | 1:1, 4:3, 3:2 and 16:9 |
| Maximum resolution | 6000 x 4000 | 5184 x 3888 |
| Maximum native ISO | 51200 | 25600 |
| Maximum boosted ISO | 204800 | - |
| Min native ISO | 100 | 100 |
| RAW files | ||
| Min boosted ISO | 50 | - |
| Autofocusing | ||
| Manual focusing | ||
| Autofocus touch | ||
| Continuous autofocus | ||
| Autofocus single | ||
| Tracking autofocus | ||
| Selective autofocus | ||
| Center weighted autofocus | ||
| Autofocus multi area | ||
| Autofocus live view | ||
| Face detect focus | ||
| Contract detect focus | ||
| Phase detect focus | ||
| Total focus points | 693 | 81 |
| Lens | ||
| Lens mount type | Sony E | Micro Four Thirds |
| Total lenses | 121 | 107 |
| Focal length multiplier | 1 | 2.1 |
| Screen | ||
| Display type | Tilting | Fixed Type |
| Display diagonal | 3 inch | 3 inch |
| Display resolution | 1,440 thousand dot | 1,040 thousand dot |
| Selfie friendly | ||
| Liveview | ||
| Touch function | ||
| Viewfinder Information | ||
| Viewfinder | Electronic | None |
| Viewfinder resolution | 3,686 thousand dot | - |
| Viewfinder coverage | 100% | - |
| Viewfinder magnification | 0.78x | - |
| Features | ||
| Lowest shutter speed | 30s | 60s |
| Highest shutter speed | 1/8000s | 1/4000s |
| Highest quiet shutter speed | 1/32000s | - |
| Continuous shooting speed | 20.0 frames/s | 5.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Manually set exposure | ||
| Exposure compensation | Yes | Yes |
| Change white balance | ||
| Image stabilization | ||
| Integrated flash | ||
| Flash distance | no built-in flash | no built-in flash |
| Flash modes | Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync | Auto, On, Off, Slow Sync, Red-Eye Slow |
| Hot shoe | ||
| Auto exposure bracketing | ||
| White balance bracketing | ||
| Exposure | ||
| Multisegment metering | ||
| Average metering | ||
| Spot metering | ||
| Partial metering | ||
| AF area metering | ||
| Center weighted metering | ||
| Video features | ||
| Supported video resolutions | - | 4096 x 2160 @ 30p / 75 Mbps, MOV, H.264, AAC |
| Maximum video resolution | 3840x2160 | 4096x2160 |
| Video format | MPEG-4, AVCHD, H.264 | MPEG-4, H.264 |
| Mic input | ||
| Headphone input | ||
| Connectivity | ||
| Wireless | Built-In | Built-In |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 2.0 (480 Mbit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | None |
| Physical | ||
| Environmental seal | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 673g (1.48 pounds) | 350g (0.77 pounds) |
| Dimensions | 127 x 96 x 63mm (5.0" x 3.8" x 2.5") | 114 x 64 x 34mm (4.5" x 2.5" x 1.3") |
| DXO scores | ||
| DXO All around rating | 92 | not tested |
| DXO Color Depth rating | 24.9 | not tested |
| DXO Dynamic range rating | 13.3 | not tested |
| DXO Low light rating | 3517 | not tested |
| Other | ||
| Battery life | 650 photographs | 450 photographs |
| Style of battery | Battery Pack | Battery Pack |
| Battery ID | NP-FZ100 | - |
| Self timer | Yes (2, 5, 10 secs + continuous) | Yes (2 or 10 secs) |
| Time lapse feature | ||
| Storage media | Dual SD/SDHC/SDXC slots (UHS-II compatible) | SD/SDHC/SDXC card |
| Storage slots | Dual | One |
| Retail price | $4,498 | $320 |