Specifications

Technical Notes

Nikon COOLPIX S640 Digital Camera

Type

Compact digital camera

Effective pixels

12.2 million

Image sensor

1/2.33-in. CCD; approx. 12.39 million total pixels

Lens

5× optical zoom, NIKKOR lens

 

Focal length

5.0-25.0mm (equivalent with 35mm [135] format picture angle:

 

28-140mm)

 

 

 

f/-number

f/2.7–6.6

 

Construction

7 elements in 6 groups

Digital zoom

Up to 4× (equivalent with 35mm [135] format picture angle:

approx. 560mm)

 

 

Vibration reduction

Lens shift

Autofocus (AF)

Contrast-detect AF

 

Focus range (from

• [W]: Approx. 45 cm (1 ft. 6 in.) to ∞, [T]: Approx. 70 cm (2 ft.

 

 

4 in.) to ∞

 

lens)

• Macro mode: Approx. 2 cm (0.8 in.) to ∞ (wide-end zoom

 

 

 

position)

 

Focus-area selection

Face priority, auto (9-area automatic selection), manual with 99

 

focus areas, center

 

 

Monitor

2.7-in., approx. 230k-dot, wide viewing angle TFT LCD with

anti-reflection coating and 5-level brightness adjustment

 

 

 

Frame coverage

Approx. 100% horizontal and 100% vertical

 

(shooting mode)

 

 

 

 

Frame coverage

Approx. 100% horizontal and 100% vertical

 

(playback mode)

 

 

 

Storage

 

 

 

Media

Internal memory (approx. 45 MB), SD (Secure Digital) memory cards

 

File system

DCF, Exif 2.2, and DPOF compliant

 

File formats

Still pictures: JPEG

 

Movies: AVI (Motion-JPEG compliant)

 

 

Sound files: WAV

 

 

• 4000×3000 High (4000P)/Normal (4000)

 

 

•

3264×2448 Normal (3264)

Image size

•

2592×1944 Normal (2592)

•

2048×1536 Normal (2048)

(pixels)

• 1024×768 PC screen (1024)

 

 

 

 

• 640×480 TV screen (640)

 

 

•

3968×2232 16:9 (3968)

ISO sensitivity

• ISO 100, 200, 400, 800, 1600, 3200, 6400

(Standard output

• Auto (auto gain from ISO 100 to 1600)

sensitivity)

• Fixed range auto (ISO 100 to 400, 100 to 800)

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Nortel Networks user manual Specifications, 154, Nikon Coolpix S640 Digital Camera
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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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