Hmm, to be THE wide angle lens and not able to use filters (ND, GND), it's hard for me not to get hung up,. Still trying to find cheap, good, easy option to make a DIY holder that doesn't vignette/block widest angles. Sharpness I agree 7-14 is markedly better than mzd 9-18, for landscapes certainly a big plus. Though I do miss 9-18 when I need filters, not to mention the filters are cheaper since it's 52mm.