An apparatus for generating data associated with at least one portion of a sample, comprising: a source, configured to provide electro-magnetic radiation; a beam splitter configured to split the electro-magnetic radiation into a first radiation and a third radiation; at least one optical arrangement configured to: i. forward the at least one first radiation to the at least one portion through at least one optical arrangement, and receiving at least one second radiation from the at least one portion which is based on the at least one first radiation, wherein, based on an interaction between the at least one optical arrangement and at least one of the first radiation or the second radiation, the at least one optical arrangement has a first transfer function, ii. forward the at least one third radiation to the at least one portion through at least one optical arrangement, and receiving at least one fourth radiation from the at least one portion which is based on the at least one third radiation, wherein, based on an interaction between the at least one optical arrangement and at least one of the third radiation or the fourth radiation, the at least one optical arrangement has a second transfer function, and wherein the first transfer function is at least partially different from the second transfer function, wherein the first and third radiations have wavelengths that completely overlap one another; and at least one further arrangement (668,670) configured to generate the data based on the second and fourth radiations. a source, configured to provide electro-magnetic radiation; a beam splitter configured to split the electro-magnetic radiation into a first radiation and a third radiation; at least one optical arrangement configured to: i. forward the at least one first radiation to the at least one portion through at least one optical arrangement, and receiving at least one second radiation from the at least one portion which is based on the at least one first radiation, wherein, based on an interaction between the at least one optical arrangement and at least one of the first radiation or the second radiation, the at least one optical arrangement has a first transfer function, ii. forward the at least one third radiation to the at least one portion through at least one optical arrangement, and receiving at least one fourth radiation from the at least one portion which is based on the at least one third radiation, wherein, based on an interaction between the at least one optical arrangement and at least one of the third radiation or the fourth radiation, the at least one optical arrangement has a second transfer function, and wherein the first transfer function is at least partially different from the second transfer function, wherein the first and third radiations have wavelengths that completely overlap one another; and i. forward the at least one first radiation to the at least one portion through at least one optical arrangement, and receiving at least one second radiation from the at least one portion which is based on the at least one first radiation, wherein, based on an interaction between the at least one optical arrangement and at least one of the first radiation or the second radiation, the at least one optical arrangement has a first transfer function, ii. forward the at least one third radiation to the at least one portion through at least one optical arrangement, and receiving at least one fourth radiation from the at least one portion which is based on the at least one third radiation, wherein, based on an interaction between the at least one optical arrangement and at least one of the third radiation or the fourth radiation, the at least one optical arrangement has a second transfer function, and wherein the first transfer function is at least partially different from the second transfer function, wherein the first and third radiations have wavelengths that completely overlap one another; and at least one further arrangement (668,670) configured to generate the data based on the second and fourth radiations.