Could I get a "lesser" or 70-300 Sigma, or Canon, AND a 50mm Canon 1.8f Mark II for 300.00 total?
You could -> but you'll end up with three lenses
instead of one for about the same coverage...
FYI - "Extending the focal length range from 200mm to 300mm provides a narrowing of the diagonal covering angle of 3 degrees, 45 minutes while widening a lens from 28mm to 24mm gives you 14 degrees more coverage. The gain is far more visible and impressive than the difference between 200- and 300mm.
The 18-200 is another option: http://www.stevesforums.com/forums/v...37&forum_id=65