what is the working distance?

Much less than a millimeter. This is a high power objective for a microscope. In order for you to see anything it has to be extremely close to the slide holding the sample. It also requires the use of immersion oil connecting the objective to the sample slide. Without the oil, you can not see anything through the eyepieces of the microscope because of light defraction. Hope this helps.

My stage won't drop any lower for the length of this lens. 😭 Is there anything I can do to make it work, or do i just need to send it back?

I think you need to include a photo so we can see what the problem is. I am assuming the lens screws in but that you are not able to drop the stage low enough? The lens has to literally be in contact with the slide. It would be unusual for the microscope to not allow enough travel. What microscope are you using and does it move the length the manufacturer says?

How are you supposed to clean the lens? It’s so small it can’t be cleaned properly resulting in oil beads that distort the image

Using compressed air can be helpful to clear the lens. If not, take a piece of lens paper and fold it to a point. Soak the lens paper in a suitable solvent such as Sparkle (https://www.amazon.com/dp/B007LBEEWQ). Insert the folded point on to the lens surface and make small circles to clean the entire lens. Use an eyepiece to check for any excess debris or oil on the lens after cleaning.

Power Source	Battery Powered
Objective Lens Description	Achromatic
Real Angle Of View	90 Degrees
Magnification Maximum	100 x
Light Source Type	LED
Item Weight	0.01 Ounces
Color	Gold, Black, Grey, Clear
Material Type	PE_(Polyethylene)

AmScope A100X 100X (Oil) Achromatic Microscope Objective

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