Nikon D3100 provide two Ferrite Cores inside the box : smaller one for USB cables and other for A/V cables. Ferrite Cores ( also known as Ferrite Bead ) designed to filter high frequency noises in electronics. These noises can affect data transfer performance or quality. Ferrite Cores clipped onto cables like ilustration below ( see manual page 116 )


Nikon put nice tutorial video on how to assemble these stuff ..check it at Nikon Support USA
The Phoblographer just finished their usual daily basis review on Nikon D3100. If you’re looking for a review that based on real-world usage , this is the review you’ll want to read. From day 1 to day 8 , they reviewed each D3100 features and performance : environment test, ISO , lens bokeh, kit lens performance, family usage, video mode etc.
Here’s some best bits from the review:
The Nikon D3100 is a great camera for educational use. Its ease of use and low cost make it a great tool. Families will also love this camera, it is great for school photo’s, family events and vacations due to its convenient size. For Foodies this is a great camera to take to a restaurant. Folks who just want a decent camera for photo walking or street photography, this camera would fit the niche nicely
Read the full review at The Phoblographer
If you don’t know what is an Intervalometer or what is used for , read my post on how to create timelapse video. Phottix Nikos Digital Timer Remote is an Intervalometer , a timer device that can trigger your camera periodically at specified time periods.

Features
- Self Timer : just like your camera’s self-timer but with longer period ( up to 99h 59m 59s )
- Interval Timer : trigger the camera periodically at the specified period
- Long Exposure Timer : for Bulb mode , will hold the shutter open for the specified period
- Number of Frames: define number of photos you want to take
- and best of all , you can combine above options
Compatibility
Phottix offer several cable version for any camera model. For Nikon D3100 (and D90,D5000,D7000) the cable version is N10
Order + Review
There is nice review from martybugs.net , check it out .
You can order the Nikos at Phottix website for $67. I can’t find it on Amazon,BHPhoto and Adorama.
or you can check these similar intervalometer:
Delkin has announced the Snug-It Pro skin for Nikon D3100. It can provide better protection to your Nikon D3100 from scuff, dings, dust, and moisture. Snug-It skins are custom molded and one can access standard camera functions without removing the skin. Snug-It skins also come with a plastic LCD cover to prevent fingerprints or scratches on the LCD.

Current price is $39.99 , pretty cheap considering its advantage. Available at Delkin.com . Amazon have in them in-stock ! doesn’t have it in-stock yet but i’m pretty sure they’ll have one soon.
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