Surprised.
Just did a comparison between the Loxia 21mm and Batis 25mm. Loxia appears to be a touch sharper in the middle, but the Batis has more sharp details on the edges. The Loxia appears to be well-centered - performance seems similar at each corner.
Probably need to take it down to the river to do one of those serious diagonal shots. Will compare to the Batis 18mm as well.

Unless of course you used the B18 image and the L21 image...tricky...
The slightly more neutral rendering of the Batis 18 is why I prefer it for architecture. Conversely, the microcontrast of the Loxia is why I prefer it for landscapes and cityscapes.



