I was overall satisfied with the lenses I took. On land the Tamron worked well. It was much harder on the excursion boats. They were small and bounced a lot. My lack of experience also showed. There was plenty of light to go to f/8 or even f/11 to get a larger depth of field, but I stayed as large as I could get. There were occasions when the 70-200 would have been nice, but the backpack was too heavy as it was. Not sure on the rules. Can I just post a link to my Flickr account or do I have to link individual photos? If I read correctly I hit my limit of uploads with those two. By the way I would appreciate critiques.