Concepts in Photography

The size of the aperture is represented by a value known as an “F-number.” The f-number represents the focal length divided by the diameter of the lens. For example, if a lens with a 50 mm focal length has an f-number of F2, the diameter of the aperture is 25 mm.

(50 mm/25 mm=F2) The smaller the f-number, the greater the size of the aperture.

The opening in the aperture is described as the Exposure Value (EV). Increasing the Exposure Value (+1 EV) means the amount of light doubles. Decreasing the Exposure Value (-1 EV) means the amount of light halves. You can also use the exposure compensation feature to fine-tune the amount of light by subdividing exposure values into 1/2, 1/3 EV, and so on.

+1 EV

 

-1 EV

 

 

 

F1.4

F2

F2.8

F4

F5.6

F8

Exposure Value Steps

Aperture value and the depth of field

You can blur or sharpen the background of a photo by controlling the aperture. It is closely related to the depth of field (DOF), which can be expressed as small or large.

A photo with a large DOF

A photo with a small DOF

The aperture housing contains several blades. These blades move together and control the amount of light passing through the center of the aperture. The number of blades also affects the shape of light when shooting night scenes. If an aperture has an even number of blades, light divides into an equal number of sections. If the number of blades is odd, the number of sections is double the number of blades.

For example, an aperture with 8 blades divides light into 8 sections and an aperture with 7 blades into 14 sections.

7 blades

8 blades

15

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Samsung EVNX210ZBSBUS user manual Aperture value and the depth of field
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EVNX210ZBSBUS specifications

The Samsung EVNX210ZBSBUS is an innovative and highly efficient electric vehicle (EV) charger designed to cater to the growing demand for sustainable energy solutions. This advanced charging station brings together cutting-edge technologies and features that make it a standout product in the electric vehicle charging market.

One of the most significant features of the EVNX210ZBSBUS is its ability to deliver high charging speeds, allowing users to quickly recharge their electric vehicles. With an output power of up to 22 kW, the charger is optimized for both home and commercial use, significantly reducing downtime for EV drivers. This is particularly beneficial for businesses with fleet vehicles that require efficient energy replenishment to maintain operational productivity.

Designed with user convenience in mind, the EVNX210ZBSBUS comes equipped with a user-friendly digital interface. The LCD display provides real-time information about charging status, power output, and estimated charging time, enabling users to easily monitor their charging sessions. The charger supports plug-and-play functionality, ensuring a seamless experience when connecting a vehicle.

In terms of compatibility, the EVNX210ZBSBUS supports a wide range of electric vehicles, thanks to its versatile connection options including Type 2 connectors. This feature ensures that it can cater to various EV models, making it a versatile choice for different users.

Safety is a top priority for Samsung in the design of the EVNX210ZBSBUS. The charger includes several safety mechanisms such as overcurrent protection, overvoltage protection, and temperature control to ensure safe operation. Additionally, the robust and weather-resistant enclosure allows the charger to be used in a variety of outdoor conditions, enhancing its durability and reliability.

The EVNX210ZBSBUS also supports smart charging capabilities, integrating seamlessly with mobile applications that allow users to track their energy consumption, schedule charging times, and even manage access in commercial settings. This feature not only provides convenience but also promotes energy efficiency by allowing users to take advantage of off-peak electricity rates.

In summary, the Samsung EVNX210ZBSBUS electric vehicle charger represents a significant advancement in charging technology, combining high-speed performance, robust safety features, and user-friendly operation. Its versatility and smart technology make it an excellent choice for both residential and commercial applications, aligning perfectly with the global push for sustainable transport solutions.
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