The 24 inch 610mm Alan Anamorphic has an adjustable element that rotates approximately 15 degrees to squeeze the image. The glass has no major flaws (it is quite nice really).The aperture and anamorphic elements move freely. The micrometer allows you to set a stop for the anamorphic squeeze so you can always get precisely the same exact amount. Comes with the mounting flange. This is a special lens for the pro shooter or scientist willing to adapt it to their camera. The item "Alan Anamorphic Lens 24 610mm with precision micrometer setting VERY RARE" is in sale since Tuesday, April 7, 2020. This item is in the category "Cameras & Photo\Lenses & Filters\Lenses". The seller is "malonecamera" and is located in Dayton, Ohio. This item can be shipped worldwide.