I want to take magnified images of the subjects such as compound eye of the Butterflies, dragon flies...
I've a canon 180 Macro/ Canon 550D (planning to take 1DX Or 50D Mach III with some more hands on). Most of the pictures I've taken go up to 1x size and in most cases I try to crop the pictures... which in turn mostly do not give me the exact magnified picture I want to take.
I know; there is Canon 65 MM with 5X magnification available in the market... but really don't want to spend money on getting another macro lens for this purpose.
Is there an good yet professional alternative available.