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Focused spots have wide applications for example in confocal microscopy and in sensing and manipulating sub-wavelength structures.To enhance their performance,focused spots can be optimized by spot shaping and by using new focusing media into which the spot is realized.With several Spatial Light Modulators(SLMs)in series,the polarization,the amplitude and the phase can all be modified together.This implies that widely varying position dependent electromagnetic fields can be realized in for example the pupil of a focusing objective to realize many different optimum focused spots.Some examples of optimum focused spots will be discussed,namely focused fields with largest electric field of specified polarization in the focal point and focused fields by which the maximum force is exerted in a desired direction on a small particle.