Concepts in Photography

Flash

Light is one of the most important components in photography. It’s not easy, however, to have an enough amount of light anytime and anywhere. Making use of a flash allows you to optimize light settings and create a variety of effects.

Flash, also known as strobe or speed light, helps to create adequate exposure in low-light conditions. It is also useful in light-abundant situations. For example, flash can be used in compensating the exposure of a subject’s shadow or capturing clearly both the subject and the background in backlit conditions.

Before correction

After correction

Flash guide number

The model number of a flash refers to the flash’s power, and the maximum amount of light created is represented by a value known as a “guide number.” The bigger the guide number, the more light is emitted from the flash. The guide number is achieved by multiplying the distance from the flash to the subject and the aperture value when the ISO sensitivity is set to 100.

Guide number = Flash to Subject Distance X Aperture value

Aperture value = Guide number / Flash to Subject Distance

Flash to Subject Distance = Guide number / Aperture value

Therefore, if you know the guide number of a flash, you can estimate an optimum flash to subject distance when setting the flash manually. For example, if a flash has a guide number of GN 20 and is 4 meters away from the subject, the optimal aperture value is F5.0.

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Samsung EVNX210ZBSBUS user manual Flash guide number

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.