Kenko 20mm extension tube for Canon EF  type_Remote Release with just the typical yellowing

with just the typical yellowing

two geared precision alignment rails

with only very minor surface wear

and only minor dust in the optics- but there is some yellowing

The 645AFDII is an easy-handling medium format SLR with a pair of convenient control dials and a pretty acceptable (though not at all cutting-edge) single-point autofocus system

Kenko 20mm extension tube for Canon EF &nbsptype_Remote Release with just the typical yellowingThe Kenko 20mm extension tube provides substantial macro function with almost any lens (although it's best with lenses 50mm and up). Passthrough electronic contacts maintain exposure control and autofocus.