Optex 4mm T2 is a legendary ultra-wide prime lens, specifically designed for the Super 16mm (S16) format. Despite its extreme focal length, it is a rectilinear lens—meaning it maintains straight lines rather than producing the “fisheye” effect typically associated with such wide angles. It is particularly famous for its “vintage” character, characterized by unique flare patterns and organic rendering.
Ultra-Wide Rectilinear Field of View: Provides an expansive perspective (approx.4 $180^\circ$ diagonal) without the spherical distortion of a fisheye lens.
Fast T2 Aperture: Offers exceptional low-light performance for its focal length, allowing for filming in dim environments.
Fixed-Focus Design: Due to the massive depth of field, almost everything from a few inches to infinity remains in focus, making it ideal for handheld or “run-and-gun” shooting.
Unique Vintage Flares: Its older coatings produce a distinct, organic flare character that is highly sought after by cinematographers wanting to avoid the “clinical” look of modern glass.
Compact & Lightweight: Despite its large 150mm–156mm front diameter, it is relatively light and easy to integrate into gimbal or handheld rigs.
Integrated Iris Gear: Features standard cine-style gearing for precise iris control via wireless motors or follow focus systems.
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