If you have not got the lens let me throw in one more idea. Whatever brand's 19-35mms lenses are pretty inexpensive and good enough for the price tags. I am not quite sure but read it somewhere that all the Tamron, Tokina, or Vivitar's 19-35mm lenses are actually made by Cosina, the largiest Japanese OEM lens maker. If the 19-35mm narrow range is ok with you you can get it cheap at keh.com (less than $100). BTW, It is the regular EF mount and 77mm thread.