Someone with blue rubber gloves is adjusting the numbers on the machine.
A person turns knobs on a microscope while wearing blue gloves.
Someone with surgical gloves on is making adjustments to a piece of machinery.
Someone is adjusting a microscope while wearing a blue glove.
A person is turning the focus dial on a what seems to be a microscope.
A person wearing blue gloves turns multiple dials on an instrument.
A person wearing gloves shows the functionality of the device by its dials.
Gloved hands are shown twisting part of a microscope and adjusting it's strength.
A person turning dials and knobs on an instrument while music plays in the background.
A person is wearing gloves and turning knobs on a device.