[anlb4]

Someone please help, I have been at this lab paper for days..almost done except for a few questions, was not given any knowledge fo the compound microscope by our professor.

 During use why is only half the field luminated?
The field does not change when I move the mechanical stage why?
What is the microscope said to be if moving form low to high power and only the fine adustment knob need to be used for focus.?
 I have researched many web pages, just cant find the info I need..

[jena]

Try this website and ask the same question. It's set up like this forum except it deals with microbiology.

Hope it helps

http://www.protocol-online.org/forums/index.php?showforum=4

[dexangeles]

parfocal --- when u switch from high to low or vice versa, it's still nearly focused