MIC TECH X dry&water biological objective

People are tired of cleaning 100X oil objectives every time, but not with MIC TECH newly designed 195 Plan achromatic 100X water objective. Such problem will never happen again, just water can take the place of the oil for the 100X objective, you will never worried to dirty your clothe or anything, just use MIC TECH newly designed water 100X objectives. Another choice is to use MIC TECH also newly designed 195 Plan achromatic 100X dry objective, your future choice for biological microscope.