(noun) - A vanitas painting was a particular type of still life immensely popular in the Netherlands (and Paris, to a lesser extent), beginning in the 17th century.The phrase comes to us courtesy of a Biblical passage in Ecclesiastes, in which the Hebrew word hevel was incorrectly taken to mean vanity of vanities. vanitas painting, while possibly containing lovely objects, always included some reference to man's mortality-most often a human skull (with or without other bones), but also by way of burning candles, soap bubbles or decaying flowers.
Turn the camera off and remove the cap that covers the lens mount on the front of the camera. Remove the cap that covers the back of the lens. Hold the lens in front of the camera so that the little white dot on the lens aligns with the matching dot on the camera body.
When finished viewing with your 100x oil immersion lens, carefully wipe the oil from all glass surfaces using a piece of lens cleaning paper. Use a second piece of lens paper moistened with a small amount of alcohol (ethyl or isopropyl) or lens cleaning solution, wiping all glass surfaces again to remove any remaining oil. Failing to remove immersion oil from lenses will result in hardened oil on lenses that will affect future clarity. If you need to remove immersion oil that has been left on a lens and hardened, moisten lens paper with a small amount of xylene or microscope lens cleaning solution.