Nikon D850

The Nikon D850 is a full frame flagship DSLR camera that combines 45.75 million pixels with high-speed continuous shooting. It is equipped with the Nikon F-mount and weighs approximately 915 grams (excluding battery storage card). It supports 4K video recording.
How is the image quality and sensor performance
Sensor: Adopting a 35.9 × 23.9mm full frame back illuminated CMOS sensor without low-pass filters, with an effective pixel count of approximately 45.75 million and a total pixel count of approximately 46.89 million.
Sensitivity: The native ISO range is 64-25600, which can be extended to ISO 32 (reduced by 0.3-1EV) or ISO 102400 (increased by 0.3-2EV). The low sensitivity image quality is delicate, and the tolerance performance is excellent.
Image processor: equipped with EXPEED 5 processor, supporting photo output up to 8256 × 5504 resolution.
Viewfinder: Eye level pentaprism single mirror reflex viewfinder, with a coverage rate of about 100% in FX format and a magnification of about 0.75.
Is the focusing and continuous shooting speed fast enough
Focusing system: Using Nikon D5's Multi CAM 20000 autofocus sensor module, it has 153 autofocus points (including 99 cross shaped sensors), of which 55 or 15 are optional, and supports f/8 aperture focusing.
Low light focusing: The center focus point supports -4EV, while the rest of the points support -3EV, providing strong focusing ability in low light environments.
Continuous shooting speed: When using the battery case (handle) with EN-EL18 series batteries, the maximum speed is about 9 frames per second; When using the standard EN-EL15a battery, the maximum speed is about 7 sheets per second, and in DX format, it can achieve 30 sheets per second.
Metering system: equipped with a TTL exposure metering sensor of approximately 180000 pixels RGB, supporting 3D tracking focusing and facial recognition.
What are the video recording functions
Resolution: Supports 4K ultra high definition video (3840 × 2160) 30p recording, with no cropping or cropping mode options.
Slow motion: Supports full HD (1920 × 1080) 120fps shooting and can achieve 5x slow motion effect.
Delay photography: Supports in camera 8K delay video synthesis function, with a single photo recording capacity of approximately 37.8 million pixels (FX format 5:4 cropping).
Anti shake: Supports electronic VR anti shake when shooting full HD videos, enhancing the stability of handheld shooting.
Interface: Equipped with HDMI and USB interfaces, supporting external monitors and microphones.
Do you need me to help you compare the advantages and disadvantages of the Nikon D850 with other flagship DSLRs in the same price range? I can help you determine which one is more suitable for your shooting needs.