... :75 mm4.Auxiliary binocular lens:1X5.Plan eyepiece:10 X/ diameter 18,16X / diameter 11 (Pick Out Parts)6.PLL objective :4X/0 ... 75 mm,longitudinal 50 mm12.Stage annular plank:the external diameter 45mm,diameter 25mm.13.Filter:Blue,Green,Yellow,Grindglass14.Power:220V ... objective:10X,25X 1 each5. Phase contrast annular lamina:10 X,25X 1each6. Trinaocular tube:1 unit7. To center telescope 1 ...