Some have you may have seen my thread about 30mm to be used on a holiday. In that post I stated that the big pitfall was needing a wider angle to get City Scape and Landscape images. I stated I used a wide angle 0.45x on the end and was unsure if it reduced IQ. Took some shots today. I zoomed into the 40km sign and could not see a difference. Please let me know your thoughts.

Camera Canon EOS 60D
Exposure 0.001 sec (1/800)
Aperture f/5.6
Focal Length 30 mm
ISO Speed 100
Exposure Bias 0 EV


Without 0.45x





With 0.45x