Sony A7R IV vs Sony A900
62 Imaging
81 Features
93 Overall
85
54 Imaging
66 Features
62 Overall
64
Sony A7R IV vs Sony A900 Key Specs
(Full Review)
- 61MP - Full frame Sensor
- 3" Tilting Screen
- ISO 100 - 32000 (Boost to 102800)
- Sensor based 5-axis Image Stabilization
- No Anti-Alias Filter
- 1/8000s Maximum Shutter
- 3840 x 2160 video
- Sony E Mount
- 665g - 129 x 96 x 78mm
- Launched July 2019
- Superseded the Sony A7R III
- Replacement is Sony A7R V
(Full Review)
- 25MP - Full frame Sensor
- 3" Fixed Display
- ISO 100 - 6400
- Sensor based Image Stabilization
- 1/8000s Max Shutter
- No Video
- Sony/Minolta Alpha Mount
- 895g - 156 x 117 x 82mm
- Released October 2008
- Renewed by Sony A99
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Below is a in-depth analysis of the Sony A7R IV versus Sony A900, one being a Pro Mirrorless and the other is a Advanced DSLR and both of them are offered by Sony. There is a crucial difference among the image resolutions of the A7R IV (61MP) and A900 (25MP) but both cameras posses the same sensor sizes (Full frame).
Pentax 17 Pre-Orders Outperform Expectations by a LandslideThe A7R IV was unveiled 10 years later than the A900 and that is a fairly serious gap as far as camera tech is concerned. Each of the cameras have different body design with the Sony A7R IV being a SLR-style mirrorless camera and the Sony A900 being a Mid-size SLR camera.
Before delving right into a in-depth comparison, here is a concise overview of how the A7R IV grades against the A900 in regards to portability, imaging, features and an overall grade.
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Below is a sample of the gallery pics for Sony Alpha A7R IV and Sony Alpha DSLR-A900. The full galleries are viewable at Sony A7R IV Gallery and Sony A900 Gallery.
Reasons to pick Sony A7R IV over the Sony A900
| A7R IV | A900 | |||
|---|---|---|---|---|
| Released | July 2019 |  | October 2008 | More recent by 131 months |
| Display type | Tilting |  | Fixed | Tilting display |
| Display resolution | 1440k |  | 922k | Crisper display (+518k dot) |
| Touch display |  | Easily navigate |
Reasons to pick Sony A900 over the Sony A7R IV
| A900 | A7R IV |
|---|
Common features in the Sony A7R IV and Sony A900
| A7R IV | A900 | |||
|---|---|---|---|---|
| Manually focus |  | Very exact focus | ||
| Display dimensions | 3" |  | 3" | Equal display dimensions |
| Selfie screen |  | Neither contains selfie screen |
Sony A7R IV vs Sony A900 Physical Comparison
When you are looking to lug around your camera often, you are going to need to factor its weight and volume. The Sony A7R IV has got external measurements of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") having a weight of 665 grams (1.47 lbs) whilst the Sony A900 has sizing of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") with a weight of 895 grams (1.97 lbs).
Look at the Sony A7R IV versus Sony A900 in the all new Camera and Lens Size Comparison Tool.
Don't forget, the weight of an Interchangeable Lens Camera will differ based on the lens you have attached during that time. The following is a front view proportions comparison of the A7R IV and the A900.
Factoring in size and weight, the portability grade of the A7R IV and A900 is 62 and 54 respectively.
Sony A7R IV vs Sony A900 Sensor Comparison
In many cases, its tough to visualise the gap in sensor measurements purely by going through specifications. The visual below will provide you a greater sense of the sensor measurements in the A7R IV and A900.
To sum up, both cameras provide the same sensor dimensions but not the same MP. You should expect to see the Sony A7R IV to show more detail having an extra 36MP. Greater resolution will also make it easier to crop photos more aggressively. The more recent A7R IV is going to have an edge when it comes to sensor technology.
Sony A7R IV vs Sony A900 Screen and ViewFinder
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Sony A7R IV vs Sony A900 Specifications
| Sony Alpha A7R IV | Sony Alpha DSLR-A900 | |
|---|---|---|
| General Information | ||
| Brand | Sony | Sony |
| Model type | Sony Alpha A7R IV | Sony Alpha DSLR-A900 |
| Category | Pro Mirrorless | Advanced DSLR |
| Launched | 2019-07-16 | 2008-10-22 |
| Physical type | SLR-style mirrorless | Mid-size SLR |
| Sensor Information | ||
| Powered by | Bionz X | Bionz |
| Sensor type | BSI-CMOS | CMOS |
| Sensor size | Full frame | Full frame |
| Sensor dimensions | 35.8 x 23.8mm | 35.9 x 24mm |
| Sensor area | 852.0mm² | 861.6mm² |
| Sensor resolution | 61MP | 25MP |
| Anti alias filter | ||
| Aspect ratio | 1:1, 4:3, 3:2 and 16:9 | 3:2 and 16:9 |
| Highest Possible resolution | 9504 x 6336 | 6048 x 4032 |
| Maximum native ISO | 32000 | 6400 |
| Maximum enhanced ISO | 102800 | - |
| Minimum native ISO | 100 | 100 |
| RAW pictures | ||
| Minimum enhanced ISO | 50 | - |
| Autofocusing | ||
| Manual focusing | ||
| Touch focus | ||
| Autofocus continuous | ||
| Autofocus single | ||
| Tracking autofocus | ||
| Autofocus selectice | ||
| Autofocus center weighted | ||
| Multi area autofocus | ||
| Live view autofocus | ||
| Face detection autofocus | ||
| Contract detection autofocus | ||
| Phase detection autofocus | ||
| Total focus points | 567 | 9 |
| Lens | ||
| Lens support | Sony E | Sony/Minolta Alpha |
| Number of lenses | 121 | 143 |
| Crop factor | 1 | 1 |
| Screen | ||
| Screen type | Tilting | Fixed Type |
| Screen size | 3 inch | 3 inch |
| Screen resolution | 1,440k dots | 922k dots |
| Selfie friendly | ||
| Liveview | ||
| Touch operation | ||
| Screen technology | - | TFT Xtra Fine color LCD |
| Viewfinder Information | ||
| Viewfinder | Electronic | Optical (pentaprism) |
| Viewfinder resolution | 5,760k dots | - |
| Viewfinder coverage | 100 percent | 100 percent |
| Viewfinder magnification | 0.78x | 0.74x |
| Features | ||
| Min shutter speed | 30s | 30s |
| Max shutter speed | 1/8000s | 1/8000s |
| Continuous shutter rate | 10.0 frames per second | 5.0 frames per second |
| Shutter priority | ||
| Aperture priority | ||
| Expose Manually | ||
| Exposure compensation | Yes | Yes |
| Change white balance | ||
| Image stabilization | ||
| Built-in flash | ||
| Flash distance | no built-in flash | no built-in flash |
| Flash settings | Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync. | Auto, On, Off, Red-Eye, Slow Sync, Rear Curtain, Fill-in, Wireless |
| External flash | ||
| Auto exposure bracketing | ||
| White balance bracketing | ||
| Max flash synchronize | 1/250s | 1/250s |
| Exposure | ||
| Multisegment exposure | ||
| Average exposure | ||
| Spot exposure | ||
| Partial exposure | ||
| AF area exposure | ||
| Center weighted exposure | ||
| Video features | ||
| Supported video resolutions | 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM | - |
| Maximum video resolution | 3840x2160 | None |
| Video file format | MPEG-4, XAVC S, H.264 | - |
| Mic port | ||
| Headphone port | ||
| 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 | ||
| Environment sealing | ||
| Water proofing | ||
| Dust proofing | ||
| Shock proofing | ||
| Crush proofing | ||
| Freeze proofing | ||
| Weight | 665 gr (1.47 lbs) | 895 gr (1.97 lbs) |
| Physical dimensions | 129 x 96 x 78mm (5.1" x 3.8" x 3.1") | 156 x 117 x 82mm (6.1" x 4.6" x 3.2") |
| DXO scores | ||
| DXO Overall rating | 99 | 79 |
| DXO Color Depth rating | 26.0 | 23.7 |
| DXO Dynamic range rating | 14.8 | 12.3 |
| DXO Low light rating | 3344 | 1431 |
| Other | ||
| Battery life | 670 images | 880 images |
| Style of battery | Battery Pack | Battery Pack |
| Battery ID | NP-FZ100 | NP-FM500H |
| Self timer | Yes | Yes (2 or 10 sec) |
| Time lapse recording | ||
| Storage type | Dual SD/SDHC/SDXC (UHS-II compatible) | Compact Flash (Type I or II), Memory Stick Duo / Pro Duo, UDMA Mode 5, Supports FAT12 / FAT16 / FAT32 |
| Card slots | Two | Two |
| Launch price | $3,498 | $2,736 |