The original intention of buying ZM was for the small size and portability. It was sad that the ZMs wide angles cannot work well with FF mirrorless. Luckily with the Loxia series finally I can have wide angles at a good size and weight with very good image quality. The 21/2.8 is of Distagon design, so no corner issues with the full frame mirrorless. However, as the rear elements are still quite close to the sensor, light fall off is more apparent than corresponding DSLR ZF/ZE designs.

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Rolleiflex 3003, SL2000F - SONY Alpha7R 1/2/4. A1
Carl Zeiss C/Y T* - QBM HFT - ZM T* - ZF T* - Batis T* - Otus T* - Loxia T*
Sony. Zeiss 16-35/4 T* G200600 GM100400 GM600
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