yes it is possible as i have a fisheye lens sticking out the end of my sony. Basically easiest thing is to go to jessops, or your local camera shop and get them to look at it. Most probably you will need a little screw on adaptor which the main lense will screw onto. This adaptor itself will screw onto the original camcorder lense. All pretty simple really
Jessops are very good at this and will have you sorted in a jiffy, check out the website