Yes, there are different camera lens' for different cameras. Not all cameras have different camera lens' though and that is because they have an automatic focus. A more detailed and expensive camera should have different lens' since they are for more detailed photographer work than for the regular consumer.
You don't - you'll need an Ethernet card for your computer. A regular voice/fax modem is different than a high-speed/network connection, so you need a different 'card' (with a socket that will match your cable). If you can't find a socket that your Ethernet cable fits, then you don't have an Ethernet card installed!
Yes, any Ethernet cable will work for the 360.
An ethernet cable is used in computer and internet connections and is available in different lengths and is also called an Ethernet Cable
put a usb in your laptop and transfer your ethernet file to the usb then place it where ever you want to have ethernet
no, you need to by a crossover Ethernet cable instead of the regular one. the new one will help allot more.
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In the case of ethernet, you need a "crossover" ethernet cable connected between two regular ports or a regular ethernet cable connected to an "uplink port" on one switch and a regular port on the other. Uplink ports are sometimes called "MDI" ports. Both types of cable are available at most computer and office supply stores.
30-50 depending on how good the camera is
The best practices for securing Ethernet cables with Ethernet cable clips include ensuring the clips are the right size for the cable, using clips that are designed for Ethernet cables, placing the clips at regular intervals along the cable, and avoiding bending or crimping the cable excessively.
the ds i has a camera and is available in different colors than the regular ds, and the ds lite
A compact camera is only different from a standard camera in size. Using a compact camera is no different from using a standard sized camera.