Thanks for the responses everyone. I want to ask about another option:
- As with any TC, I know I’m going to lose some sharpness and focus speed at the expense of a bit more range. So if I crop a shot taken with just the 10-17, will it be sharper or softer than a non-cropped shot taken with the TC. If the cropped, naked 10-17 shot is as sharp, I don’t see the TC getting me anywhere.
- Same question with the Canon 8-15. Since the reviews/tests I’ve read say the 8-15 is sharper (albeit for a cost), if I get the 8-15, will my cropped shots be sharper or softer than an uncropped shot taken with the 10-17 and the TC?
Any thoughts on this would be appreciated. Thanks.