Work it step by step explain a simple bioviewer

Place the biological specimen you want to observe (e.g., a prepared slide, a small leaf, an insect wing) onto the viewing stage or clip it into the designated holder on the bioviewer. Ensure it is flat and stable.

Many simple bioviewers use ambient light. Position the bioviewer so that light falls onto the specimen from above or through a built-in mirror/light source if available. Good lighting is crucial for clear viewing.

Look through the eyepiece. You will see a blurry image at first. Slowly turn the focus knob (if present) or move the eyepiece up and down until the image of your specimen becomes clear and sharp.

Some bioviewers have multiple lenses or a zoom function. If yours does, rotate the magnification selector to choose the desired level of enlargement. Refocus slightly after changing magnification if needed.

Once focused, carefully move the specimen holder or the bioviewer itself to scan different parts of your specimen. Note any interesting features or details that are visible under magnification.