Turning the diaphragm will change how much light is let in.
A compound microscope
Light microscopes are called compound because a light microscope has more than one lense.
compound light microscope
The another name for a compound microscope is a light microscope, as it uses light to illuminate the specimen being observed.
The student should adjust the condenser to allow more light to pass through the specimen in a compound light microscope. By adjusting the condenser height or iris diaphragm, the amount of light reaching the specimen can be controlled for better visibility.
A compound light microscope is named for the use of more than one lens to collect and focus light, and magnify the image.
compound microscope By Diana maldonado (:
light microskope
A light microscope is called a compound microscope because it uses multiple lenses (a compound of lenses) to magnify the image of a specimen. This allows for higher magnification and resolution compared to a simple microscope.
The answer you are looking for is called a dissecting or stereo microscope. These provide a lower magnification range in comparison to compound microscopes and they use two sets of lenses, the eyepiece and the objective lenses. these then provide a 3D image.
compound light microscope
You could use a stereo microscope, also known as a dissecting microscope, to observe organisms found in pond water. This type of microscope provides a three-dimensional view of larger specimens at lower magnifications.