I am looking at wide angle options and am trying to decide between the zeiss 25 mm f/2 and the nikkor 14-24 f/2.8. Although the lack of zoomability and manual focussing is a limitation of the zeiss, that will not impact my shooting. Having to zoom with my feet forces me to think more about composition which is mostly landscape and still life for me. Still, my concern is the emphasis on accurate focussing with the d800 and whether the manual zeiss will fail there-or will the autofocussing of the nikkor generate more keepers. Having to use an lcd loupe for every shoot will get old. I might as well get a view camera. Has anyone experienced either this zeiss or the 21 mm f2.8 on a d800?