According to news from The New Camera website, Canon recently announced a patent on a hybrid viewfinder. The new viewfinder design will be used in the Canon SLR system, designed to provide users with an unrestricted viewfinder experience, even through the viewfinder to complete the shooting when the reflector is raised.
New patent for Canon viewfinder
Judging from the schematic diagram of the patent, this technology will add an electronic viewfinder component to the existing traditional optical viewfinder, so it can be achieved through the optical viewfinder during common captures, and it can be used in scenarios where the reflector is raised such as video recording The EVF is used to complete the framing, so that the SLR system can also realize the viewfinder to record video, increasing the stability of handheld shooting.
Like the touch screen added to the early 650D, the author believes that this technology will also have good practicality
Editor's comment: Canon's new viewfinder technology is still in the patent stage for the time being, it is still unknown whether it can be implemented, but Canon has already proposed a similar dual viewfinder concept earlier, and believe that the implementation of technology is only a matter of time. For the SLR system, due to the limitation of the reflector structure, the video can only be framed through the screen, but the new patent can solve the difficulty of video framing, while retaining the structural advantages of the SLR system in response speed.
The task of the managed switch is to keep all network resources in good condition. The network management switch product provides a variety of network management methods based on the terminal control port (Console), based on the Web page, and supports Telnet to remotely log in to the network. Therefore, network administrators can perform local or remote real-time monitoring of the switch's working status and network running status, and manage the working status and working mode of all switch ports in a global view.
The switch is the most important network connection device of the LAN, and the management of the LAN mostly involves the management of the switch.
The network management switch supports the SNMP protocol. The SNMP protocol consists of a set of simple network communication specifications, which can complete all basic network management tasks, has a small demand for network resources, and has some security mechanisms. The working mechanism of the SNMP protocol is very simple, mainly through various types of messages, namely PDU (protocol data unit) to achieve the exchange of network information.
There are also managed switches that provide policy-based QoS (Quality of service). Policy refers to the rules that control the behavior of the switch. The network administrator uses the policy to allocate bandwidth and priority for application flows and control network access. The focus is on the bandwidth management strategy required by the service level agreement and the way of publishing the policy to the switch. Multifunction light emitting diodes (LEDs) used to indicate port status, half duplex/full duplex and 10BaseT/100BaseT at each port of the switch, and switch status LEDs that indicate system, redundant power supply (RPS) and bandwidth utilization A comprehensive and convenient visual management system has been formed.
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