Ken,
Thanks so much for responding. Just knowing that your wife will not
use it almost helps me here. Just one more question though, in your
opinion, will 300mm be enough to fill my viewfinder with a bird
high up in the tree? After all, my search for a better zoom is
basically because of my interest to take photos of birds without
having them fly away because I got too close. I'm just having a
hard time trying to realize what 300mm will look like compared to
400mm. The most I've ever used is a 70-210 zoom on a film camera. I
already have the 28-135 IS, and to me its great to walk around with
and for general use, but not enough for birds. Will the jump from
135mm to 300mm be enough? I know that the best way to decide would
be to go and try them both, but my local camera shop does not have
canon lenses. They can order them, but carry promaster. I really
have no where to go to try them out. Thats why I'm looking for all
information I can get here. I think I will start another thread
like maybe "Is the 70-300 good for birds", or if anyone else here
knows and has done some bird photography with this lens, I'd love
to hear from you. Thanks again for your response.