for those who could touch the NA-EM1, could you tell me which type of threads are in the bottom of the housing ? Are they 1/4" or metric type (M8, M10) ? I'd like to attach some stuff there (T-Plate or ball).
Any opinion on the new 12-40 is coming to the market along with the OM-D E-M1 ? Its specs are set at a high level but so is its price. Do you think it would worth the extra money compared to the 12-50 (assuming manufacturers also provide corresponding ports) ?