In June 2006 we announced that the market introduction of the Carl Zeiss Sonnar T* 2/85 ZM lens was postponed due to mechanical improvements. Extensive prototype testing of the Carl Zeiss Sonnar T* 2/85 ZM lens for the Zeiss Ikon camera had indicated that improvements were needed to the long term ruggedness of this first internal focusing tele lens for a rangefinder camera.

After several attempts to achieve modifications which could have been implemented in the relatively short term and did not fully deliver the intended results, we decided to perform a major redesign. This redesign will significantly increase the durability and long term precision of the Carl Zeiss Sonnar T* 2/85 ZM lens.

Due to the high standards demanded by Carl Zeiss on the precision of our products, volume production of the Sonnar T* 2/85 ZM could not start as scheduled. We will inform you accordingly when the Carl Zeiss Sonnar T* 2/85 ZM lens becomes available.