The Anamorphot 2x 50 is an anamorphic lens adapter designed for cinematography. Increases image resolution and detail by squashing / compressing the image horizontally by a factor of 2x to allow maximum utilisation of the cameras' sensor, especially those of 'full frame' dimensions.Anamorphic lenses therefore require subsequent stretching, in post-production or at projection. Intended for use with shooting on 4:3 sensors, bringing the intended output to a standard 2.39:1 wide format with a higher resolution than simply letter-boxing the image in camera. The lens features an adjustable diopter for 'sweet spot' adjustment controls on focus, 'near' and 'far'.This anamorphic adapter also of/ers unique effects such as horizontal flare and streaks from light sources and ellipsoidal bokeh (great with the use of the optional +1.8 diopter), for cinematographers wanting a characteristic filmic look. Depth of field is also affected, as in practice when using an anamorphic lens a longer focal length is required in order to achieve the same angle of view. Therefore anamorphic lenses produce a shallower, more cinematic depth of field than the same lens without the adapter.This anamorphic adapter also of/ers unique effects such as horizontal flare and streaks from light sources and ellipsoidal bokeh, for cinematographers wanting a characteristic filmic look. Depth of field is also affected, as in practice when using an anamorphic lens a longer focal length is required in order to achieve the same angle of view. Therefore anamorphic lenses produce a shallower, more cinematic depth of field than the same lens without the adapter.The adapter has a 77mm front filter thread and a native 62mm rear thread. As such it is only suitable for lenses which have a front element size of 50mm or less. Limitations of close focusing are helped with the use of dioptres which further enhances image. resolution and sharpness on close / medium distance applications.PLEASE NOTE: Due to the additional weight of the Anamorphot adapter and extra strain placed on the taking lens the use of lens support is essential at all times.Specs:- Lens Type: Anamorphic Adapter- Format: 2.0x- Focus Type: Manual- Filter Thread Front: 77mm- Filter Thread Rear: 62mm- Close Focus: dependent on taking lens- Weight: 560gIn the Box:- Anamorphot 2x Anamorphic AdapterModel: SLRA50-2X