One of my favorite subjects to shoot is graffiti. One of the problems I've run into is that some pieces are so large and or in alleys so narrow that it's impossible to fit the work into a single frame using just a 28 or 35mm FL. My solution is the 18mm SEM, I've only had this lens for a week but I'm blown away by how wide the FOV is. I've shot both images below with my 35mm FLE and could only capture slightly half of what's posted below, because of how narrow the alley is. There's definitely some downsides to this lens (i.e. filter adapter, slow, etc.) but thus far it's a keeper (IMHO).
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