18:41 0 + Sigma updates firmware for multiple EF mount lenses, EF-E converter and one F mount lens19:04 0 + Leak: Samyang to announce autofocus 14mm F2.8 lens for Canon EF mount
23:37 0 + Sigma releases firmware updates for its Canon EF and Nikon F lenses, MC-11 mount converter23:48twomounts 0 + Canon Patents Lens System with a Mount on Both Ends