The best replacement for autofocus is manual focus.

The best alternatives to autofocus are rated as following:
★★★★★  manual focus
★★★  manual
★★★  fixed focus
★★  manual focus dslr
★★  gtd
★  full focus
★  manual focus lens
★  manual focus lenses
★  infinity focus
★  edof
★  continuous focus
★  image stabilizer
  manual lens
  final version
  nikon autofocus
  accident exchange
  nikon
  canon autofocus

Your alternative for autofocus is not listed? Suggest!
Speaking about autofocus, one probably shouldn't forget about canon 2x extender.

Other search terms related to autofocus and their ratings are:
★★★★★ canon 2x extender
★★★ extension tubes
★★★ 2x teleconverter
★ nikon d5000
nikon d60
You have in mind a companion for autofocus and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of autofocus in all years. Click on graph for more.
autofocus
manual focus
manual