I am searching Ebay and I am coming across what seems to be some good deals on lenses but I'm not sure if they will fit onto my camera. I have a Canon EOS Elan 7ne. I was wondering if these two would fit onto it. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4687&item=7529298641&rd=1&ssPageName=WDVW http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7530525041&category=106842&ssPageName=WDVW&rd=1 (This one has be confused because at the top is says it will go on a 20D as well) Also not wanting to post everytime I'm not sure it would be appreciated if you could tell me what to look for and how I will know if it will fit onto my camera or not. Thanks.