At Photons To Photo you can compare sensor figures of various camera.
As you can see in the image above, the Sony a7 III is still the champion of pure sensor performance, beating the Canon EOS R and Nikon Z7 on dynamic range measures.. Which is a pity especially for Nikon, since they are using a sensor made by Sony.
Canon, designing and manufacturing their own sensors. gets closer to Sony’s sensor performance as ISO gets higher (but around ISO 32000 Sony gets the edge again).
Sensor performance figures do not tell the whole story, and the differences shown in the graph above are really minimal. When it comes to ergonomics, lens ecosystem, reliability, customer support, weather sealing, and whatever counts beyond sensor performance, Canon is still the the alpha dog in the pack.
Nikon Z7 specifications at a glance:
- 45.7MP FX-Format BSI CMOS Sensor
- EXPEED 6 Image Processing Engine
- UHD 4K30 Video; N-Log & 10-Bit HDMI Out
- 493-Point Phase-Detect AF System
- Built-In 5-Axis Vibration Reduction
- 0.80x 3.6m-Dot EVF with NIKKOR Optics
- 3.2″ 2.1m-Dot Tilting Touchscreen LCD
- 9 fps Continuous Shooting; ISO 64-25600
- Top-Panel Dot-Matrix OLED; XQD Card Slot
- 8K Time-Lapse Mode; Wi-Fi and Bluetooth
From the conclusion:
The Nikon Z7 feels like a camera which can be picked up by existing Nikon DSLR users without hesitation about how it works or what certain things do. While some things will be slightly different and may take some to get used to, all in all, it’s very much like using a smaller and lighter Nikon DSLR.[…]
That said, the Nikon Z7 is probably not the perfect model for everybody. If you shoot a lot of sports or action, there are certainly better tracking focus and burst speeds on the market – both inside and outside the mirrorless realm. There’s also the issue of the single card slot – it seems likely that many will either learn to live with the risk of one of the cards corrupting, or wait even longer to see what Nikon produces next. Read the review…