Thank you for the extra ideas! I have not considered the TSE 17. The TSE 17 appears to be a good lens according to this site. Do the other users agree with the review? I am a member of Canon's CPS program, and I have a this lens requested for evaluation. I have never used a TSE lens (the lens is available from Canon, I do not yet know the evaluation period but would like to maximize my learning curve with the lens before I return it) . Can anyone provide some suggestions and pointers on how the TSE lens actually works . I can see in the review on this site that the TSE 17 has a range of settings, but I am going into uncharted waters.