Page 27 - MNUmicrobiology practical 2025
P. 27
General Microbiology & Immunology (PM 401) second level Semester 4 2024/2025
6. Move objectives half-way between 40X and 100X, add 1 drop of oil.
7. Make sure the 40x does not touch the oil!
8. Move to 100x and SLOWLY focus with the fine focus knob If you do not see your
image clearly, DO NOT go back to the 40X and try to refocus.
Watch this Video on how to use a Microscope
https://www.youtube.com/watch?v=d4FNueODr5c&t=278s
General Microbiology & Immunology (PM 401) Practical note Page 16
