Question

Mike is about to see his slide at the high power objective lens, he wants to move the slide so he can see better. Do you think using a coarse adjustment knob will help him find his specimen on the slide. What potential danger can he face if he uses the coarse adjustment with a high power objective lens?

Answer 1

Coarse and fine adjustment The coarse adjustment knob should only be used with the lowest powerobjective lens. Once it is in focus, you will only need to use the fine focus. Using the coarse focus withhigher lenses may result in crashing the lens into the slide.