Magnification :5 Steps magnification changer . 0.4X,0.6X,1.0X,1.6X,2.5X Binoculars: 45 degree inclined binocular f’=170mm Straight binocular f’=170mm 0-180 degree inclinable binocular ,f’=170mm Eyepiece 12.5X,wide filed and adjustable eyecup,10X/16X/20X for options Total magnification and visual field :f’=250mm ,12.5X eyepiece ,45 degree binocular 3.4X 5.4X 8.5X 13.5X 21.2X 65mm 42mm 26mm 16mm 10mm Focus : manual ,with rang of 12 mm f’=200mm (with fine focus ,option) f’=250mm (with fine focus ) f’= 300mm /350mm /400mm (option) Illumination : coaxial illumination by optical light -guide system *Halogen: 15V/150W ,two bulbs,continuously light-intensity adjustment,50000Lux(f’=250mm) *LED :60Watts ,over 50000 hours life time 75000Lux (f’=300mm) 90000Lux (f’=250mm) *field of view :50mm (f’=250mm) Filter :green /yellow for Dental ,or green/blue for ENT Stand type and Gross weight : floor stand 125kg wall mount:80kg ceiling mount:95kg Accessories : Beam splitter 50/50 or 20/80 Adaptor for 1/3 video camera Integrated beam splitter and adaptor Video system :built-in 1/2 inch CCD camera with 540TVL Or HDMI 1920*1080P ,1/3 inch HD CMOS sensor | 
