FUJIFILM GF 23mm f/4 R LM WR Lens

Fujifilm GF 23mm f/4 R LM WR Lens
Ultra-Wide, Weather-Resistant Prime for the GFX System
The Fujifilm GF 23mm f/4 R LM WR is an exceptional ultra-wide-angle prime lens engineered specifically for the large-format G-mount GFX camera system. Delivering an 18mm full-frame equivalent focal length, this lens presents an expansive field of view that is ideally suited for architectural, interior, and landscape photography. Its sophisticated optical configuration utilizes a collection of low-dispersion and aspherical elements to rigorously control distortion and chromatic aberrations, resulting in edge-to-edge clarity and realistic rendering. Driven by a rapid, silent linear AF motor and wrapped in a fully weather-sealed chassis, this premium prime provides the uncompromising performance required by demanding professional photographers in the studio or out in the field.

Key Features & Engineering
18mm Equivalent Ultra-Wide Perspective: Provides an expansive, dramatic field of view that is perfect for capturing large architectural structures, tight interior spaces, and sweeping vistas with minimal perspective distortion.

Advanced Optical Correction (15 Elements / 12 Groups): Incorporates two aspherical elements to eliminate spherical aberrations and geometric distortions, alongside two Extra-Low Dispersion (ED) elements and one Super ED element to eliminate color fringing and maximize color fidelity.

Nano GI (Ghosting-Ingredient) Coating: A specialized coating applied to individual lens elements to suppress surface reflections, lens flare, and ghosting, maintaining rich image contrast and color neutrality when working under intense or backlit conditions.

Linear Motor (LM) Internal AF System: Employs a high-speed linear autofocus motor for quick, near-silent, and highly accurate focusing performance. An internal focusing design ensures the physical length of the lens remains unchanged during operation for consistent balance.

Intuitive Physical Aperture Ring: Outfitted with a manual aperture ring for traditional exposure adjustment. Features a dedicated ‘C’ (Command) position lock, allowing users to hand over control and adjust the aperture via the camera body’s command dials.

Comprehensive Weather Sealing: The physical construction is dust-, freeze-, and weather-sealed at multiple points across the barrel, ensuring dependable operation in harsh climates and temperatures as low as 14°F (-10°C).

9-Blade Rounded Diaphragm: Features a rounded nine-blade aperture structure that contributes to a smooth, organic out-of-focus quality and pleasing circular bokeh.

Technical Specifications
Lens Classification: Medium Format Ultra-Wide-Angle Prime

Lens Mount Type: Fujifilm G-Mount

Focal Length: 23mm (18mm equivalent on standard full-frame sensors)

Maximum Aperture: f/4

Minimum Aperture: f/32

Optical Layout: 15 Elements in 12 Groups (2 Aspherical, 2 ED, 1 Super ED)

Autofocus Motor: Linear AF Motor (Internal Focus Design)

Aperture Blades: 9 (Rounded)

Filter Thread Diameter: 82 mm

Environmental Resistance: Dust- and Moisture-Resistant; Freeze-Resistant down to 14°F / -10°C