Compound microscope Power switch and rheostat - to turn on/off the microscope and adjust the amount of light Objective - to magnify the image of the object Revolving nosepiece - to switch from one objective to another Base - to hold the microscope while transporting it Illuminater/light source Fine adjustment knob - to fine tune the focusing Coarse adjustment knob - to move the stage or the objectives up/down for focusing Pinion knob - to move the condensor up/down in order to focus the light on to the slide Arm - to hold the microscope while transporting it Condensor and iris diaphragm - condensor is the lens to focus the light on to the slide and iris diaphragm is a shutter to regulate the amount of light going to the slide Stage - where the slide is placed for observation Body tube - for light to pass from the objectives to the oculars Oculars or eye pieces - to view and magnify the image of the object

Objectives Oil-immersion lens (100X) - to magnify the image of the object High-dry objective lens (40X) - to magnify the image of the object Low-power objective lens (10X) - to magnify the image of the object Scanning objective lens (4X) - to magnify the image of the object Revolving nosepiece - to switch from one objective to another

Stage Opening in the stage to allow light to pass Iris diaphragm lever - a shutter to regulate the amount of light going to the slide Illuminator/light source Coarse adjustment knob - to move the stage or the objectives up/down for focusing Fine adjustment knob - to fine tune the focusing Base - to hold the microscope while transporting it Knob to move the mechanical stage and slide back and forth Knob to move the mechanical stage and slide Mechanical stage - to hold the slide and be able to move it for observation Stationary stage - where the slide is placed for observation

Condenser Arm - to hold the microscope while transporting it Base - to hold the microscope while transporting it Light switch/rheostat - to turn on/off the microscope and adjust the amount of light Iris diaphragm and lever - a shutter to regulate the amount of light going to the slide Stage - where the slide is placed for observation Condenser - the lens to focus the light on to the slide Blue filter Illuminator/light source Pinion knob - to move the condensor up/down in order to focus the light on to the slide Coarse adjustment knob - to move the stage or the objectives up/down for focusing Fine adjustment knob - to fine tune the focusing

3D Compound microscope - Mouse over and drag to rotate the microscope