Shooting Options: The Shooting Menu

Shooting, Playback and Setup Menus

BWhite Balance

Set to A(Auto) Md (Shooting menu) M B White balance

The human brain is able to adapt to changes in the color of the light source, with the result that white objects appear white whether seen in the shade, direct sunlight, or under incandescent lighting. Digital cameras can mimic this adjustment of the human eye by processing images according to the color of the light source. This is known as “white balance”. For natural coloration, choose a white balance setting that matches the light source before shooting.

Although the default setting, Auto, can be used under most types of lighting, you can apply the white balance setting suited to a particular light source to achieve more accurate results.

aAuto (default setting)

White balance automatically adjusted to suit lighting conditions. Best choice in most situations. Can be used in most situations.

bPreset manual

Neutral-colored object used as reference to set white balance under unusual lighting conditions, see “Preset Manual” (A 99) for details.

cDaylight

White balance adjusted for direct sunlight.

dIncandescent

Use under incandescent lighting.

eFluorescent

Use under most types of fluorescent lighting.

fCloudy

Use when shooting under overcast skies.

gFlash

Use with the flash.

The effects of the selected option can be previewed in the monitor. At settings other than Auto, the icon for the current setting is displayed in the monitor (A 6).

BWhite Balance

This feature cannot be used simultaneously with certain features. ➝ “Functions that Cannot be Applied Simultaneously” (A 109)

BFlash Mode

98At white balance settings other than Auto or Flash, turn the flash off (W) (A 32).

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Nortel Networks S640 user manual White Balance, Flash Mode
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S640 specifications

Nortel Networks S640, a notable member of the Nortel product line, offers a comprehensive solution for enterprises requiring high-performance network equipment. Known for its reliability and extensive features, the S640 has gained traction in various industries, addressing the demand for robust telecommunications and data networking.

One of the primary characteristics of the S640 is its advanced switching capabilities. It operates at Layer 2 and Layer 3, making it suitable for diverse network topologies. The switch is capable of managing a high volume of data traffic efficiently due to its scalability, accommodating growing network needs without compromising performance.

The S640 is equipped with Power over Ethernet (PoE) technology, which simplifies the deployment of connected devices like IP cameras and VoIP phones. This feature not only reduces the need for separate power supplies but also enhances installation flexibility.

Another vital feature of the S640 is its support for Quality of Service (QoS). This functionality ensures that critical applications receive priority over less essential traffic, leading to improved performance for services such as voice and video over the network. QoS management is especially crucial in business environments where it is necessary to maintain operational efficiency and user satisfaction.

Security is paramount in modern networks, and the S640 addresses this with a range of integrated security features. It supports advanced authentication mechanisms such as IEEE 802.1X, ensuring that only authorized devices can access the network. Additionally, features like virtual LAN (VLAN) support help isolate different segments of network traffic, bolstering security and management capabilities.

The S640 also emphasizes energy efficiency, making it an environmentally friendly option for enterprises concerned about their carbon footprint. Nortel has designed this equipment to meet various energy standards, reducing consumption while delivering optimal performance.

In summary, the Nortel Networks S640 stands out in the crowded networking market through its powerful switching capabilities, support for PoE and QoS, robust security features, and commitment to energy efficiency. This combination of characteristics makes it an ideal choice for enterprises looking to upgrade their networking infrastructure to meet contemporary demands. With its reliable performance and versatile functionalities, the S640 continues to be a significant asset in the evolution of network technology.
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