The Olympus M.ZUIKO DIGITAL ED 75-300mm f/4.8-6.7 is a substantial lens which will prove bulky on a PEN Mini body
Overall, this is a hard lens to characterise. When used with an OM-D body it works well but there is no escaping the fact that chromatic aberration is an issue at longer focal lengths. Attempting to use the lens with a viewfinderless body, on the other hand, can be very frustrating. Then there is the price, some potential purchasers may opt for the Olympus 40-150mm f/4-5.6 lens instead by virtue of the fact that it is smaller, lighter and costs less. But, of course, the 75-300mm zoom offers even more pulling power and in some situations that may be the decisive factor.