Alastair Norcross wrote:
I took my R with 16 on a late afternoon walk around a local lake yesterday. The DXO profile for the lens is really good. At F11, it's sharp pretty much edge to edge. There is a little purple fringing in the extreme corners, but these are actually the parts of the image that are wider than 16mm. DXO allows you to use more of the image than the LR profile. Also, the purple fringing is easily corrected with one click. Here are some of the images:
Nice sunstar. The sun was about to go down behind the mountains
The lake was partially frozen
The high winds that fanned the flames of the awful fires here a few days ago really did a number on a lot of trees


If you open it up to F2.8, you can get a bit of background blur
And here are 100% crops from the top left corner of one of the shots, first with standard lens corrections:
You can see some purple fringing on the left (that's the part of the image that is wider than 16mm)
And this is after one click on the 'auto' button of the 'size' in the 'other chromatic aberrations' panel in PL5. That click increased the size from 4 to 8.
And here's the whole image (web-sized) from which those crops are taken:

The more I use this lens, the more impressed I am with it. $299 for a small, light, sharp ultra wide lens is really quite remarkable. I know a lot of people like to complain about Canon's cheap RF lenses (or maybe it's really a few people who complain a lot), but the more I use them (I have all four), the more misguided all these complaints seem to me.
Can I make a friendly suggestion? These are nice shots but maybe back off on the sharpening. They look really "Crispy"...