Buying or Cleaning a Used Camera Lens? Things to Check ~ John Rundle

There are useful checks you can make before you lay out your hard earned cash on a lemon, or to use on your own lens before shooting. Lens faults will degrade the image you are so carefully trying to make. No matter how much you spend on a camera, if the lens is deficient or inferior there is nothing you can do to rescue the shot once it is made. Eyeballing these pointers is a good way to keep the technical quality up. See: http://www.picturecorrect.com/tips/buying-or-cleaning-a-used-camera-lens-things-to-check/