What is the working distance for a 10x objective lens?
Table 2 – Long Working Distance Objectives
| Designation | Magnification | Working Distance |
|---|---|---|
| ELWD | 100x | 2.0 mm |
| SLWD | 10x | 20.3 mm |
| SLWD | 20x | 20.5 mm |
| SLWD | 50x | 13.8 mm |
What happens if you try to use the coarse adjustment when the 10X lens?
What happens if you try to use the coarse adjustment when the 10X lens is in place? The focus of the specimen would be unclear with a high objective power and the stage lifted high due to the coarse adjustment. There is a warning it is not good to change coarse focus under high power.
Can you use coarse focus knob on 10X?
The coarse adjustment knob is used ONLY with the low power (4X, 10X) objectives.
When should you use the fine focus knob?
Fine Adjustment Knob – This knob is inside the coarse adjustment knob and is used to bring the specimen into sharp focus under low power and is used for all focusing when using high power lenses. Light Source – The light source in your microscope is a lamp that you turn on and off using a switch.
Why should you start at the low power objective?
Which Microscope Objective Should I Start With? Start Low! Since the 4x objective lens has the least magnification, but a larger field of view, it allows for more of the specimen to be seen, as well as locating the part of the sample you wish to view. This in turn makes it easier to focus on the sample.
Which objective lens should you always start with quizlet?
always focus first with the course adjustment and the low-power objective lens.
Why do you need to use the 4x magnification first before using other objective lenses?
Why do you need to start with 4x in magnification on a microscope? The 4x objective lens has the lowest power and, therefore the highest field of view. As a result, it is easier to locate the specimen on the slide than if you start with a higher power objective.