Glossary

PTP-IP (Picture Transfer Protocol over Internet Protocol): A commonly used name for the CIPA DC-005-2005 image transfer protocol for transmitting images over LANs. It represents an extension to the Picture Transfer Protocol (PTP) used to transfer images between cameras and computers connected via USB cable. The WT-4 uses PTP-IP to communicate with host computers. Shared key: An authentication system in which WEP keys are used to establish whether a client has access to the network. Communication is restricted to devices with the same WEP key.

SS-ID (Service Set ID): An SS-ID prevents interference between devices in

different networks by allowing communication only between devices that share an SS-ID. See BSS-ID, ESS-ID.

Sub-net mask: A mask that divides a network into sub-nets.

TCP/IP (Transmission Control Protocol/Internet Protocol): A dual protocol consisting of a transport-layer protocol (TCP) that divides data into packets which it later reassembles, and a network protocol (IP) that handles transmission of the packets between points in the network. It can be implemented on different platforms, allowing data to be transmitted between machines with different operating systems.

TKIP (Temporal Key Integrity Protocol): An encryption standard using dynamic WPA-PSK keys that change periodically or after a specified amount of data have been transmitted, making it more secure that WEP, which uses fixed keys.

UDP (User Datagram Protocol): A fast but unreliable transport layer transmission protocol using the OSI model.

USB (Universal Serial Bus): A standard for connecting peripheral devices. USB supports data transfer rates of up to 480 Mbps (USB 2.0). Devices connected via USB can be connected and disconnected with the power on (“hot plug”) and do not require separate IRQ (interrupt request) numbers, preventing conflicts with other devices.

WAN (Wide Area Network): A network connecting computers or LANs in widely separated locations. The Internet is an example of a WAN.

WEP (Wired Equivalent Privacy): A type of encryption in which the data transmitted between devices is encoded using a shared encryption key (WEP key).

Wireless LAN access point: A wireless transceiver that acts as the connection between wireless devices and a wireless network.

WPA-PSK (WiFi Protected Access with Pre-Shared Key): A type of authentication for wireless networks using previously-established(pre-shared) TKIP or AES keys. Wireless devices using this form of authentication can only communicate with devices with the same pre-shared key.

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Nikon WT-4 user manual Appendices

WT-4 specifications

The Nikon WT-4 is a powerful wireless transmitter designed specifically for use with Nikon professional DSLRs. It provides photographers with enhanced connectivity options, allowing them to transfer images quickly and efficiently, making it an essential tool for photographers who require seamless communication and robust performance.

The WT-4 supports both wireless and wired transfer capabilities, allowing users to tailor their setup to suit various shooting environments. With support for IEEE 802.11b/g wireless standards, the WT-4 can connect to standard Wi-Fi networks, enabling easy image transfer to a computer or directly to the internet. This feature is particularly useful for event photographers and those working in remote locations who need to deliver images promptly.

One of the standout features of the WT-4 is its ability to connect multiple cameras simultaneously. Users can set up a network of cameras, which can be useful for multi-camera shoots or events where images need to be captured from various angles. This capability enhances workflow efficiency and allows for a more synchronized photography experience.

The transmitter also features a USB port for direct wired connection to a computer. This provides an alternative transfer method, ensuring versatility depending on the photographer's needs. The WT-4 includes a built-in web server, allowing users to control the camera remotely via a web browser, which can be particularly helpful for capturing wildlife or candid moments without being present.

With its robust design, the WT-4 is built to withstand the rigors of professional use. It is constructed to provide durability while remaining lightweight, ensuring it does not add unnecessary bulk to the camera setup. The device is compatible with various Nikon cameras, making it a valuable addition for photographers who rely on Nikon's ecosystem.

In terms of power, the WT-4 is equipped with an internal rechargeable battery, providing a convenient solution for extended shooting sessions. The battery life is optimized to ensure that photographers can focus on their work without worrying about frequent recharges.

Overall, the Nikon WT-4 is an essential accessory for professional photographers looking for reliable wireless connectivity. Its combination of ease of use, dual transfer methods, and advanced features make it an indispensable tool for capturing and sharing high-quality images in real-time. Whether you're shooting a wedding, a wildlife documentary, or an art project, the WT-4 enhances your ability to streamline the photography process.