Field iris diaphragm function5/24/2023 ![]() When using the 4x microscope objective lens, the iris diaphragm lever should be pushed all the way to the right. What happens when you move the iris diaphragm lever? Make sure you re-adjust the iris diaphragm for each objective lens. If the diaphragm is closed, the image is darker but the contrast greater. If the diaphragm is open, the image is brighter but the contrast is low. What happens to the field of view while adjusting the iris diaphragm?Īdjust the iris diaphragm to achieve the optimum balance between definition and glare. 10 How do you adjust the diaphragm on a microscope?.9 Can you have high contrast with a field diaphragm?.8 How does the iris diaphragm affect the brightness of a microscope?. ![]() 7 What is the best way to adjust the light levels on our microscopes?.6 Is the field of view brighter under low power?. ![]()
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