Auntiepode
Mu-43 Regular
A recent thread asked about telextenders. Of more interest to me, does anyone offer extension tubes to fit micro 4/3 that include the electrical connections to support full lens features?
The short answer is no. They would have to be proprietry products and hence expensive. A lot of macro enthusiasts prefer manual focus anyway.
Note that to pass through the electronic signals *ought* reasonably cheap to do. Each tube would need a plastic block with contacts on each side, wired together. The contacts would simply be electrical passthrough connections - no computer chips required. Yes, they won't be dirt cheap, but the design requirements would be relatively simple. The camera side would need 11 gold plated contacts. The lens side would need 11 gold plated pin contacts. In volume, that ought not be expensive and it doesn't require any complex reverse engineering.