Extension Tubes - Full Disclosure

[Knight]

Thanks for clearing things up Loupey , now all i want is to C what they look like How about electrical contacts or do you have to go all manual with these ?

[Loupey]

Thanks for clearing things up Loupey , now all i want is to C what they look like How about electrical contacts or do you have to go all manual with these ?

The electrical contacts allow full communication (even through all 3 tubes) between the body and the main lens. Even internal stabilization capability is preserved. Still, I shoot manual focus anyway.