Fish eye lens help nikon?
Which is better or what's the difference.
http://my.ebay.com/ws/eBayISAPI.dll?MyEbay&gbh=1
NONE of these are fisheye lenses. That are add-on filters claiming to be fisheye lenses but can't "see" the full 180 degrees that define a true fisheye lens.
Here are two links to some fisheye lens, one made by Nikon and the other a generic.
http://www.nikonusa.com/...8G-ED.html
http://www.amazon.com/...002KMAWO0/
As you can see, you will need to remove the lens on your camera and replace it by the fisheye lens, just like any other interchangeable lens you can buy for your fine camera
http://www.nikonusa.com/...index.page
If you don't mind using a pretend fisheye, then you need to pick one with a 52 mm filter thread and use it on your 18-55 mm lens, but instead of a 0.43x, get a 0.2x filter. If you do the math, a 0.2x filter will have a wider view than a 0.43x