<prompt> The magnification obtained by direct ophthalmoscope is5times10times15times20times  <response>: TECHNIQUE MAGNIFICATION FIELD OF VIEW CHARACTERISTICS Direct ophthalmoscopy 15X 5 Erect and viual Indirect ophthalmoscopy with 20D 3X 45 Inveed reversed and real Indirect ophthalmoscopy with 30D 2X 50 Inveed reversed and real Biomicroscopic examination with 78D 10X 30 Inveed reversed and real Biomicroscopic examination with 90D 7.5X 40 Inveed reversed and real Fundus camera 2.5X 30 Erect, viual, photo documentation Ref. : Khuranas Theory and Practice of Optics and Refraction; 2nd Ed; Pg. 386 