After removing dust, probably the best tool for cleaning a camera lens is a microfiber cloth, which is a soft cloth that you can find for less than $10.
Mgbe o wepụsịrị ájá, eleghị anya ngwá ọrụ kachasị mma maka ihichapụ oghere igwefoto bụ ákwà microfiber , nke bụ ákwà dị nro ị nwere ike ịchọta maka ihe na-erughị $ 10.