For Spherical and Anamorphic Lenses. The Sirui 1.25x Anamorphic Lens Adapter lets you turn almost any spherical lens into an anamorphic lens, and creates a 1.25x squeeze on spherical lenses. It also increases anamorphic lenses’ squeeze ratios. When you use this adapter with a 1.6x anamorphic lens, it creates an ultra-wide 2x squeeze, increases anamorphic effects, and enables reframing.

Broad Compatibility. This adapter mounts via an 82mm rear thread and is compatible with lenses with up to an 85mm front diameter. You can use a separately available 92mm step-up ring or 67mm, 72mm, and 77mm step-down rings to increase its compatibility.