Sony A7R III vs Sony A100
63 Imaging
78 Features
93 Overall
84
64 Imaging
48 Features
38 Overall
44
Sony A7R III vs Sony A100 Key Specs
(Full Review)
- 42MP - Full frame Sensor
- 3" Tilting Display
- ISO 100 - 32000 (Expand to 102400)
- Sensor based 5-axis Image Stabilization
- No Anti-Alias Filter
- 1/8000s Max Shutter
- 3840 x 2160 video
- Sony E Mount
- 657g - 127 x 96 x 74mm
- Revealed October 2017
- Superseded the Sony A7R II
- Later Model is Sony A7R IV
(Full Review)
- 10MP - APS-C Sensor
- 2.5" Fixed Screen
- ISO 100 - 1600
- Sensor based Image Stabilization
- No Video
- Sony/Minolta Alpha Mount
- 638g - 133 x 95 x 71mm
- Revealed July 2006
- Earlier Model is Konica Minolta 5D
- Successor is Sony A550
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Lets take a closer look at the Sony A7R III vs Sony A100, one being a Pro Mirrorless and the latter is a Entry-Level DSLR and they are both produced by Sony. There exists a big gap between the image resolutions of the A7R III (42MP) and A100 (10MP) and the A7R III (Full frame) and A100 (APS-C) have different sensor sizing.
President Biden pushes bill mandating TikTok sale or banThe A7R III was unveiled 11 years later than the A100 and that is quite a big gap as far as technology is concerned. Both the cameras have different body design with the Sony A7R III being a SLR-style mirrorless camera and the Sony A100 being a Compact SLR camera.
Before diving right into a thorough comparison, here is a quick overview of how the A7R III matches up versus the A100 in regards to portability, imaging, features and an overall grade.
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Here is a preview of the gallery images for Sony Alpha A7R III and Sony Alpha DSLR-A100. The full galleries are provided at Sony A7R III Gallery and Sony A100 Gallery.
Reasons to pick Sony A7R III over the Sony A100
| A7R III | A100 | |||
|---|---|---|---|---|
| Revealed | October 2017 |  | July 2006 | More recent by 137 months |
| Screen type | Tilting |  | Fixed | Tilting screen |
| Screen dimensions | 3" |  | 2.5" | Bigger screen (+0.5") |
| Screen resolution | 1440k |  | 230k | Clearer screen (+1210k dot) |
| Touch screen |  | Quickly navigate |
Reasons to pick Sony A100 over the Sony A7R III
| A100 | A7R III |
|---|
Common features in the Sony A7R III and Sony A100
| A7R III | A100 | |||
|---|---|---|---|---|
| Manual focus |  | Dial precise focus | ||
| Selfie screen |  | Neither offers selfie screen |
Sony A7R III vs Sony A100 Physical Comparison
If you're aiming to lug around your camera, you should consider its weight and measurements. The Sony A7R III offers exterior dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 657 grams (1.45 lbs) while the Sony A100 has proportions of 133mm x 95mm x 71mm (5.2" x 3.7" x 2.8") having a weight of 638 grams (1.41 lbs).
Look at the Sony A7R III vs Sony A100 in the latest Camera with Lens Size Comparison Tool.
Remember that, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are utilizing during that time. Below is a front view dimensions comparison of the A7R III vs the A100.
Factoring in dimensions and weight, the portability grade of the A7R III and A100 is 63 and 64 respectively.
Sony A7R III vs Sony A100 Sensor Comparison
Typically, it is difficult to picture the difference between sensor measurements just by reviewing specifications. The graphic underneath will help provide you a more clear sense of the sensor dimensions in the A7R III and A100.
To sum up, both of those cameras provide different megapixels and different sensor measurements. The A7R III with its bigger sensor is going to make achieving shallow depth of field easier and the Sony A7R III will offer you more detail having an extra 32 Megapixels. Higher resolution will make it easier to crop shots more aggressively. The fresher A7R III provides a benefit in sensor tech.
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Sony A7R III vs Sony A100 Specifications
| Sony Alpha A7R III | Sony Alpha DSLR-A100 | |
|---|---|---|
| General Information | ||
| Brand | Sony | Sony |
| Model type | Sony Alpha A7R III | Sony Alpha DSLR-A100 |
| Type | Pro Mirrorless | Entry-Level DSLR |
| Revealed | 2017-10-25 | 2006-07-31 |
| Physical type | SLR-style mirrorless | Compact SLR |
| Sensor Information | ||
| Chip | Bionz X | - |
| Sensor type | BSI-CMOS | CCD |
| Sensor size | Full frame | APS-C |
| Sensor measurements | 35.9 x 24mm | 23.6 x 15.8mm |
| Sensor surface area | 861.6mm² | 372.9mm² |
| Sensor resolution | 42 megapixels | 10 megapixels |
| Anti alias filter | ||
| Aspect ratio | 3:2 and 16:9 | 3:2 |
| Peak resolution | 7952 x 5304 | 3872 x 2592 |
| Highest native ISO | 32000 | 1600 |
| Highest enhanced ISO | 102400 | - |
| Lowest native ISO | 100 | 100 |
| RAW format | ||
| Lowest enhanced ISO | 50 | - |
| Autofocusing | ||
| Manual focusing | ||
| Touch to focus | ||
| Autofocus continuous | ||
| Autofocus single | ||
| Tracking autofocus | ||
| Autofocus selectice | ||
| Center weighted autofocus | ||
| Multi area autofocus | ||
| Live view autofocus | ||
| Face detect focus | ||
| Contract detect focus | ||
| Phase detect focus | ||
| Total focus points | 425 | 9 |
| Lens | ||
| Lens support | Sony E | Sony/Minolta Alpha |
| Amount of lenses | 121 | 143 |
| Focal length multiplier | 1 | 1.5 |
| Screen | ||
| Type of display | Tilting | Fixed Type |
| Display diagonal | 3" | 2.5" |
| Display resolution | 1,440k dots | 230k dots |
| Selfie friendly | ||
| Liveview | ||
| Touch screen | ||
| Viewfinder Information | ||
| Viewfinder type | Electronic | Optical (pentamirror) |
| Viewfinder resolution | 3,686k dots | - |
| Viewfinder coverage | 100 percent | 95 percent |
| Viewfinder magnification | 0.78x | 0.55x |
| Features | ||
| Minimum shutter speed | 30 secs | 30 secs |
| Fastest shutter speed | 1/8000 secs | 1/4000 secs |
| Continuous shutter rate | 10.0 frames/s | 3.0 frames/s |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Set white balance | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash distance | no built-in flash | - |
| Flash options | Off, Auto, Fill-flash, Slow Sync, Rear Sync, Red-eye reduction, Wireless, Hi-speed sync | Auto, Fill-in, Red-Eye reduction, Slow Sync, Off |
| External flash | ||
| AE bracketing | ||
| White balance bracketing | ||
| Fastest flash synchronize | - | 1/160 secs |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Supported video resolutions | 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p) | - |
| Highest video resolution | 3840x2160 | None |
| Video data format | MPEG-4, AVCHD, XAVC S | - |
| Microphone support | ||
| Headphone support | ||
| Connectivity | ||
| Wireless | Built-In | None |
| Bluetooth | ||
| NFC | ||
| HDMI | ||
| USB | USB 3.1 Gen 1(5 GBit/sec) | USB 2.0 (480 Mbit/sec) |
| GPS | None | None |
| Physical | ||
| Environmental sealing | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 657 gr (1.45 pounds) | 638 gr (1.41 pounds) |
| Physical dimensions | 127 x 96 x 74mm (5.0" x 3.8" x 2.9") | 133 x 95 x 71mm (5.2" x 3.7" x 2.8") |
| DXO scores | ||
| DXO Overall rating | 100 | 61 |
| DXO Color Depth rating | 26.0 | 22.0 |
| DXO Dynamic range rating | 14.7 | 11.2 |
| DXO Low light rating | 3523 | 476 |
| Other | ||
| Battery life | 650 images | - |
| Battery style | Battery Pack | - |
| Battery ID | NP-FZ100 | NP-FM55H |
| Self timer | Yes (2 or 10 sec; continuous (3 or 5 exposures)) | Yes (2 or 10 sec) |
| Time lapse feature | ||
| Storage type | Two SD/SDHC/SDXC slots (UHS-II support on one) | Compact Flash (Type I or II) |
| Card slots | 2 | Single |
| Price at release | $2,800 | $1,000 |