original: prime lenses usually have a larger maximum aperture -lrb- smaller f-number -rrb- than zoom lenses .
simplifications: prime lenses have a larger maximum aperture , smaller f-number , than zoom lenses . the maximum aperture on prime lenses is larger then zoom lenses . prime lenses generally have a higher maximum aperture than zoom lenses prime lenses usually have a larger maximum aperture , or smaller f-number , than zoom lenses . prime lenses usually have a smaller f-number than zoom lenses . prime lenses usually have a larger maximum aperture -lrb- smaller f-number -rrb- than zoom lenses . prime lenses tend to have a bigger maximum aperture -lrb- smaller f-number -rrb- than zoom lenses . usually prime lenses have a larger maximum aperture -lrb- smaller f-number -rrb- than zoom lenses .