course adjustment
You should find the 'adjustment knob'.
You should find the 'adjustment knob'.
You should find the 'adjustment knob'.
You should find the 'adjustment knob'.
parfocal
The focusing knobs are used to regulate the low power objectives on a microscope. These knobs help adjust the distance between the specimen and the objective lens to bring it into focus. By turning the focusing knobs, you can achieve a clear image when using low power objectives.
parfocal
Two knobs are used to get a clear image on low power. The coarse adjustment knob is used to make drastic changes to the image, and the fine adjustment knob is used to make small adjustments to the image. The reason two knobs are used is because you are supposed to get as clear an image as possible on low power before moving on to the next power, and same with medium power.
parfocal
The medium lens on the nosepiece of a microscope is typically the 10x objective lens. This lens is often referred to as the "low power" lens and is used for general observation and initial focusing of the specimen.
For course focusing the primary stage is used.
You use the low power lens to find the specimen with a microscope. Once you have found the specimen on low power, you can switch to high power for greater magnification. Just be sure to use only the fine adjustment knobs for focusing on high power so the high power objective won't hit the slide.