This helps a great deal. Thank you. I knew it would be more complicated w/ that lens selection. Just like with full frame 35mm cameras, once you get away from 50mm lenses (or their equivalent) and start looking at fast short tele lenses, the budget goes out the window. I definitely need one though, especially when running around w/ people my age. Sharp Zeiss-glass won't work for that. Half frame might turn out to be too expensive, despite the savings in film costs.