1. An ophthalmoscope for examining the fundus ( 9 ′) of a patient's eye, having at least one illumination means ( 1 ), which generates at least one illumination beam, and one imaging optic (A BI ) assignable to said illumination means ( 1 ), said imaging optic (A BI ) imaging said illumination beam onto said fundus ( 9 ′) of a patient's eye ( 9 ) via an intermediate focal plane (B), at least one observation means ( 8 ) and an imaging optic (A Bo ) assignable to said observation means ( 8 ), said imaging optic (A Bo ) imaging an observation beam generated by reflection of said illumination beam at said fundus ( 9 ′) via said intermediate plane (B) in said observation means ( 8 ), and a diaphragm slit arrangement ( 3, 3 ′) placed in said illumination beam and said observation beam, said diaphragm slit arrangement ( 3, 3 ′) having at least one diaphragm slit, respectively, placeable in said illumination beam path and said observation beam path, said diaphragm slits being mounted in a synchronously oscillating manner relative to said illumination beam and said observation beam, wherein said intermediate focal plane (B) is imageable to infinity via at least one optical unit ( 6 ) and said intermediate focal plane imaged to infinity is imageable in an imaging plane (A′) of said observation beam in which said observation means ( 8 ) is provided and said optical unit ( 6 ) is provided in the beam path of said observation beam downstream of said intermediate focal plane (B) and is passed through by said illumination beam and said observation beam.