having played with many manual focus legacy lenses on my
Olympus Four Thirds dSLR system and
Micro Four Thirds system, this lens has become one of my favorites as it gives me almost identical imagery on these cameras as the fantastic, but expensive and larger Canon EF 135mm f/2.0L lens on a Canon 1D Mark III dSLR - a favorite combination of mine for making a subject pop and have the background dissolve into lovely smooth bokeh.