Olympus VA-1 Black

VA-1Varimagni Angle Finder The VA-1 offers a twin solution for capturing unique shots, enabling focusing to be carried out from virtually any position by offering full size-view and 2x magnification. It is very useful when using telephoto, close-up and macro lenses.
The VA-1 fits over the camera's optical viewfinder. Its viewing tube rotates a full 360°, with click-stop positions every 90° for even the most difficult shooting angles.
A built-in diopter corrector ring allows adjustments between +3 to -5 diopters.
The VA-1 can be attached to all E-System cameras with the supplied adapter rings.