Stacked CMOS Sensor Structure
Update May19th, 2023: Recently released Nikon Z8 also has a Stacked Sensor.
Stacked CMOS sensors technology which enables ultra-fast readout times is one of the most important innovations in the imaging sensor world and being implemented in more camera models these days by the manufacturers, especially on their flagship models such as Sony Alpha A1 , Canon EOS R3 and Nikon Z9.
Thanks to ultra fast readout speeds, Stacked sensor technology makes it possible to increase the max shooting speed and minimize the rolling shutter effects. Another advantage that was made possible by the stacked sensor is the 'no blackout' or 'blackout free' viewfinders.
Sony A9 The first Mirrorless Camera to Sport a Stacked CMOS Sensor
As of 2022, there are only 7 cameras that utilizes the Stacked CMOS sensor, five of them have full-frame sensors, one is Micro Four Thirds (OM System OM-1) and the last one, Fujifilm X-H2S has an APS-C sized sensor. Below you can find the specs of each of these cameras with a comparison table at the very end.
1. Fujifilm X-H2S
Fujifilm X-H2S
Fujifilm X-H2S Key Specs
- Announcement Date: 2022-05-31
- 26MP - APS-C Stacked BSI X-Trans Sensor
- No Anti-aliasing (AA) filter
- ISO 160 - 12800 ( expands to 80-51200)
- Fujifilm X Mount
- Sensor-shift Image Stabilization
- 3.00" Fully Articulated Screen
- 5760k dot Electronic viewfinder
- 15.0fps (40.0fps Electronic) continuous shooting
- 4K (DCI) - 4096 x 2160 video resolution
- 240fps High-Speed Video
- Built-in Wireless
- 660g. 136 x 93 x 95 mm
- Weather Sealed Body
- Read the Review
- Check Price at: Amazon, B&H Photo
Check Fujifilm X-H2S at: B&H Photo / AmazonUS / AmazonCA / AmazonDE / AmazonES / AmazonFR / AmazonIT / AmazonUK / AmazonIN / AmazonAU
2. OM System OM-1
OM System OM-1
OM System OM-1 Key Specs
- Announcement Date: 2022-02-15
- 20MP - Four Thirds Stacked BSI Live MOS Sensor Sensor
- No Anti-aliasing (AA) filter
- ISO 200 - 25600 ( expands to 80-102400)
- Micro Four Thirds Mount
- Sensor-shift Image Stabilization
- 3.00" Fully Articulated Screen
- 5760k dot Electronic viewfinder
- 10.0fps (120.0fps Electronic) continuous shooting
- 4K (DCI) - 4096 x 2160 video resolution
- Built-in Wireless
- 599g. 135 x 92 x 73 mm
- Weather Sealed Body
- Read the Review
- Check Price at: Amazon, B&H Photo
Check OM System OM-1 at: B&H Photo / AmazonUS / AmazonCA / AmazonDE / AmazonES / AmazonFR / AmazonIT / AmazonUK / AmazonIN / AmazonAU
3. Nikon Z9
Nikon Z9
Nikon Z9 Key Specs
- Announcement Date: 2021-10-29
- 46MP - Full frame Stacked CMOS Sensor
- ISO 64 - 25600 ( expands to 32 - 102400)
- Nikon Z Mount
- Sensor-shift Image Stabilization
- 3.20" Tilting Screen
- 3686k dot Electronic viewfinder
- 30.0fps continuous shooting
- 8K - 7680 x 4320 video resolution
- 120fps High-Speed Video
- Built-in Wireless
- Built-in GPS
- 1340g. 149 x 150 x 91 mm
- Weather Sealed Body
- Read the Review
- Check Price at: Amazon, B&H Photo
Check Nikon Z9 at: B&H Photo / AmazonUS / AmazonCA / AmazonDE / AmazonES / AmazonFR / AmazonIT / AmazonUK / AmazonIN / AmazonAU
4. Canon EOS R3
Canon EOS R3
Canon R3 Key Specs
- Announcement Date: 2021-09-14
- 24MP - Full frame Stacked CMOS Sensor
- ISO 100 - 102400 ( expands to 50 - 204800)
- Canon RF Mount
- Sensor-shift Image Stabilization
- 3.20" Fully Articulated Screen
- 5760k dot Electronic viewfinder
- 12.0fps (30.0fps Electronic) continuous shooting
- 6K - 6000 x 3164 video resolution
- 120fps High-Speed Video
- Built-in Wireless
- Built-in GPS
- 1015g. 150 x 143 x 87 mm
- Weather Sealed Body
- Read the Review
- Check Price at: Amazon, B&H Photo
Check Canon EOS R3 at: B&H Photo / AmazonUS / AmazonCA / AmazonDE / AmazonES / AmazonFR / AmazonIT / AmazonUK / AmazonIN / AmazonAU
5. Sony Alpha A1
Sony Alpha A1
Sony A1 Key Specs
- Announcement Date: 2021-01-26
- 50MP - Full frame Stacked CMOS Sensor
- ISO 100 - 32000 ( expands to 50 - 102400)
- Sony E Mount
- Sensor-shift Image Stabilization
- 3.00" Tilting Screen
- 9437k dot Electronic viewfinder
- 10.0fps (30.0fps Electronic) continuous shooting
- 8K - 7680 x 4320 video resolution
- 240fps High-Speed Video
- Built-in Wireless
- 737g. 129 x 97 x 70 mm
- Weather Sealed Body
- Read the Review
- Check Price at: Amazon, B&H Photo
Check Sony Alpha A1 at: B&H Photo / AmazonUS / AmazonCA / AmazonDE / AmazonES / AmazonFR / AmazonIT / AmazonUK / AmazonIN / AmazonAU
6. Sony Alpha A9 II
Sony Alpha A9 II
Sony A9 II Key Specs
- Announcement Date: 2019-10-03
- 24MP - Full frame Stacked BSI-CMOS Sensor
- ISO 100 - 51200 ( expands to 50 - 204800)
- Sony E Mount
- Sensor-shift Image Stabilization
- 3.00" Tilting Screen
- 3686k dot Electronic viewfinder
- 20.0fps continuous shooting
- 4K (UHD) - 3840 x 2160 video resolution
- 120fps High-Speed Video
- Built-in Wireless
- 678g. 129 x 96 x 76 mm
- Weather Sealed Body
- Replaced Sony Alpha A9 Compare
- Read the Review
- Check Price at: Amazon, B&H Photo
Check Sony Alpha A9 II at: B&H Photo / AmazonUS / AmazonCA / AmazonDE / AmazonES / AmazonFR / AmazonIT / AmazonUK / AmazonIN / AmazonAU
7. Sony Alpha A9
Sony Alpha A9
Sony A9 Key Specs
- Announcement Date: 2017-04-19
- 24MP - Full frame Stacked BSI-CMOS Sensor
- ISO 100 - 51200 ( expands to 50 - 204800)
- Sony E Mount
- Sensor-shift Image Stabilization
- 3.00" Tilting Screen
- 3686k dot Electronic viewfinder
- 20.0fps continuous shooting
- 4K (UHD) - 3840 x 2160 video resolution
- 120fps High-Speed Video
- Built-in Wireless
- 673g. 127 x 96 x 63 mm
- Weather Sealed Body
- Read the Review
- Check Price at: Amazon, B&H Photo
Check Sony Alpha A9 at: B&H Photo / AmazonUS / AmazonCA / AmazonDE / AmazonES / AmazonFR / AmazonIT / AmazonUK / AmazonIN / AmazonAU
| FEATURE and SPECS COMPARISON | |  |  |  |  |  |  |  |
| Model | Fujifilm X-H2S | OM System OM-1 | Nikon Z9 | Canon EOS R3 | Sony Alpha A1 | Sony Alpha A9 II | Sony Alpha A9 |
| Sensor Resolution | 26.0 MP | 20.0 MP | 46.0 MP | 24.0 MP | 50.0 MP | 24.0 MP | 24.0 MP |
| Announced Date | 2022-05-31 | 2022-02-15 | 2021-10-29 | 2021-09-14 | 2021-01-26 | 2019-10-03 | 2017-04-19 |
| Camera Type | Advanced Mirrorless | Pro Mirrorless | Pro Mirrorless | Pro Mirrorless | Pro Mirrorless | Pro Mirrorless | Pro Mirrorless |
| Sensor Type | Stacked BSI X-Trans | Stacked BSI Live MOS Sensor | Stacked CMOS | Stacked CMOS | Stacked CMOS | Stacked BSI-CMOS | Stacked BSI-CMOS |
| Sensor Size | APS-C | Four Thirds | Full frame | Full frame | Full frame | Full frame | Full frame |
| Sensor Sensitivity | ISO 160 - 12800( expands to 80-51200) | ISO 200 - 25600( expands to 80-102400) | ISO 64 - 25600( expands to 32 - 102400) | ISO 100 - 102400( expands to 50 - 204800) | ISO 100 - 32000( expands to 50 - 102400) | ISO 100 - 51200( expands to 50 - 204800) | ISO 100 - 51200( expands to 50 - 204800) |
| Lens Mount | Fujifilm X | Micro Four Thirds | Nikon Z | Canon RF | Sony E | Sony E | Sony E |
| Image Stabil. | Sensor-shift ( up to 7.0 stops) | Sensor-shift ( up to 7.0 stops) | Sensor-shift ( up to 6.0 stops) | Sensor-shift ( up to 8.0 stops) | Sensor-shift ( up to 5.5 stops) | Sensor-shift ( up to 5.5 stops) | Sensor-shift ( up to 5.0 stops) |
| Eye Tracking Focus | | | | | | | |
| Weight | 660g | 599g | 1340g | 1015g | 737g | 678g | 673g |
| Dimensions | 136 x 93 x 95mm | 135 x 92 x 73mm | 149 x 150 x 91mm | 150 x 143 x 87mm | 129 x 97 x81mm | 129 x 96 x 76mm | 127 x 96 x 63mm |
| Weather Sealing | | | | | | | |
| Focus Points | 425 | 1053 | 493 | 1053 | 759 | 693 | 693 |
| Animal Eye Tracking | | | | | | | |
| Focus Stacking | | | | | | | |
| Focus Bracket | | | | | | | |
| Minimum Shutter | 30 sec | 60 sec | 900 sec | 30 sec | 30 sec | 30 sec | 30 sec |
| Maximum Shutter | 1/8000sec | 1/8000sec | 1/32000sec | 1/8000sec | 1/8000sec | 1/8000sec | 1/8000sec |
| Maximum Shutter Electronic | 1/32000 sec | 1/32000 sec | 1/32000 sec | 1/64000 sec | 1/32000 sec | 1/32000 sec | 1/32000 sec |
| Continuous Drive | 15.0fps | 10.0fps | 30.0fps | 12.0fps | 10.0fps | 10.0fps | 10.0fps |
| Max Video Reso | 6240 x 4160 | 4096 x 2160 | 7680 x 4320 | 6000 x 3164 | 7680 x 4320 | 3840 x 2160 | 3840 x 2160 |
| Video fps at Max | 120p,60p,50p,30p,25p,24p | 60p | 30p, 25p, 24p | 60p, 30p, 24p,23.98p | 30p,25p, 23.98p | 30p,25p,24p | 30p,25p,24p |
| Video Formats | MPEG-4, H.264, H.265 | MPEG-4, H.264, H.265, HEVC | H.264, H.265 | MPEG-4, H.264, H.265 | XAVC S, XAVC HS, H.264, H.265 | MPEG-4, AVCHD, H.264 | MPEG-4, AVCHD, H.264 |
| Storage Slot | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Battery Life | 580 | 520 | 740 | 760 | 530 | 690 | 650 |
| Battery Model | NP-W235 | BLX-1 | EN-EL18d | LP-E19 | NP-FZ100 | NP-FZ100 | NP-FZ100 |
| RAW Video | | | | | | | |
| Webcam | | | | | | | |
| Anti Flicker | | | | | | | |
| Microphone Port | | | | | | | |
| Headphone Port | | | | | | | |
| Wifi | | | | | | | |
| Weather Sealing | | | | | | | |
| Timelapse | | | | | | | |
| Screen Type | Fully articulated | Fully articulated | Tilting | Fully articulated | Tilting | Tilting | Tilting |
| Top LCD | | | | | | | |
| LCD Size | 3.00" | 3.00" | 3.20" | 3.20" | 3.00" | 3.00" | 3.00" |
| Screen dots | 1620000 | 1620000 | 2088960 | 4150000 | 1440000 | 1440000 | 1440000 |
| Touch Screen | | | | | | | |
| Viewfinder | | | | | | | |
| Viewfinder Type | Electronic | Electronic | Electronic | Electronic | Electronic | Electronic | Electronic |
| Viewfinder Coverage | 100% | 100% | 100% | 100% | 100% | 100% | 100% |
| Viewfinder Magnification | 0.8x | 0.83x | 0.8x | 0.76x | 0.9x | 0.78x | 0.78x |
| Viewfinder Resolution | 5,760,000 | 5,760,000 | 3,686,400 | 5,760,000 | 9,440,000 | 3,686,400 | 3,686,400 |
| NFC | | | | | | | |
| Selfie Friendly Screen | | | | | | | |
| High Resolution Mode | | | | | | | |
| AF Joystick | | | | | | | |
| Bluetooth | | | | | | | |
| Full-size HDMI Port | | | | | | | |
| Gyro data Stabilization | | | | | | | |
| Vehicle Tracking | | | | | | | |
| Eye Control AF | | | | | | | |
| Live Composition | | | | | | | |
| Price | Amazon, B&H Photo | Amazon, B&H Photo | Amazon, B&H Photo | Amazon, B&H Photo | Amazon, B&H Photo | Amazon, B&H Photo | Amazon, B&H Photo |