Optics. This trip re-confirmed some of the basic truths I’ve been yammering about for all these years. I took, as my binocular, a Zeiss 8x30 that I bought in an Orvis store in 1985. It’s still the ideal size, weight, and magnification for peering at buffalo and such, and the only servicing it’s ever had was when I brushed the dust off the lenses. In the meanwhile it’s been to Africa at least a half a dozen times and served on more whitetail hunts than I can recall. It’s probably eight or nine generations obsolete, but it still works fine and I have no intention of replacing it. I think I paid $500 for it. I’d call that money well spent.