Fujifilm GF 23mm f/4 R LM WR Lens

GF lenses achieve ultra-high resolution and are capable of supporting further enhancement in the future. Utilizing the knowledge cultivated through the development of the XF lenses, GF lenses are Fujifilm's finest class of lenses and were designed by amassing various technologies of Fujifilm. They are designed to fully unlock the performance potential of the GFX 50S.

The "FUJINON GF 23mm F4 R LM WR" has a focal length equivalent to 18mm in the 35mm format and is perfectly suited for landscape and architectural applications. Despite the super-wide angle of view, distortion is kept to a minimum, and with the high-resolution performance extending all the way to the edges, sharp depiction power as if looking at an actual landscape is achieved. It features fast and quiet AF due to a linear motor, is dust and weather resistant, and is capable of operating in environments as cold as -10°C. The lens combines high performance and reliability as a professional work tool.

Low distortion with high resolving power

With a focal length equivalent to 18mm in the 35mm format, this super wide-angle lens is optimal for shooting landscapes and architectural photography. With 12 groups and 15 elements construction using two aspherical lenses, one super ED lens, and three ED lenses, this lens suppresses distortion despite being a super wide-angle lens with a 99.9° angle of view. Also, thanks to the optimal arrangement of the Super ED lens and three ED lenses, chromatic aberration of magnification is thoroughly suppressed, achieving high-resolution performance all the way to the edges.

Nano GI coating

Nano GI coating has been applied to the lens that is effective on incident light entering the lens from diagonal angles due to the nature of the super wide-angle lens. Despite being a super wide-angle lens, the occurrence of ghosting and flare is effectively suppressed.

Fast and quiet AF

By adopting an inner focusing AF system to lighten the weight of the focus lens, and using a linear motor to drive the lens elements, fast and quiet AF is achieved, allowing for comfortable shooting.

Dust and weather-resistant, capable of operating in environments as cold as -10°C

The lens has been sealed in nine areas, allowing you to shoot with confidence and stability, even in dusty environments and in light rain outdoors.

High operability

The aperture ring has a C position (command dial mode) to allow lens aperture value to be changed via the command dial on the camera body. A locking mechanism has been added to the A (Auto) and C positions to prevent unintended movements of the aperture dial.

Low distortion with high resolving power

With a focal length equivalent to 18mm in the 35mm format, this super wide-angle lens is optimal for shooting landscapes and architectural photography. With 12 groups and 15 elements construction using two aspherical lenses, one super ED lens, and three ED lenses, this lens suppresses distortion despite being a super wide-angle lens with a 99.9° angle of view. Also, thanks to the optimal arrangement of the Super ED lens and three ED lenses, chromatic aberration of magnification is thoroughly suppressed, achieving high-resolution performance all the way to the edges.

Nano GI coating

Nano GI coating has been applied to the lens that is effective on incident light entering the lens from diagonal angles due to the nature of the super wide-angle lens. Despite being a super wide-angle lens, the occurrence of ghosting and flare is effectively suppressed.

Fast and quiet AF

By adopting an inner focusing AF system to lighten the weight of the focus lens, and using a linear motor to drive the lens elements, fast and quiet AF is achieved, allowing for comfortable shooting.

Dust and weather-resistant, capable of operating in environments as cold as -10°C

The lens has been sealed in nine areas, allowing you to shoot with confidence and stability, even in dusty environments and in light rain outdoors.

High operability

The aperture ring has a C position (command dial mode) to allow the lens aperture value to be changed via the command dial on the camera body. A locking mechanism has been added to the A (Auto) and C positions to prevent unintended movements of the aperture dial.

Key Features

• Super wide-angle 99.9° angle of view (18mm equivalent in 35mm format).
• Advanced optical construction featuring 15 elements in 12 groups.
• Includes two aspherical lenses, one Super ED lens, and three ED lenses.
• Nano GI coating to effectively suppress ghosting and flare from diagonal incident light.
• Fast and quiet inner-focusing AF driven by a precision linear motor.
• Dust and weather-resistant with 9 sealing points.
• Operates reliably in freezing environments as cold as -10°C.
• Aperture ring with a locking C (Command) and A (Auto) position for secure operability.

Benefits

• Capture sweeping landscapes and towering architecture with remarkably low distortion.
• Enjoy flawless, high-resolution performance all the way to the edges of your frame.
• Shoot with confidence in harsh Australian conditions, from dusty outback roads to light rain.
• Experience seamless, quiet autofocus that won't disrupt your creative flow or video recording.
• Easily control your aperture directly from the camera body using the locking Command dial mode.

Specifications

• Focal Length: 23mm (18mm equivalent in 35mm format)
• Angle of View: 99.9°
• Maximum Aperture: f/4
• Lens Construction: 15 elements in 12 groups
• Special Elements: 2 Aspherical lenses, 1 Super ED lens, 3 ED lenses
• Autofocus: Inner focusing system with linear motor
• Weather Resistance: Sealed in 9 areas
• Operating Temperature: Down to -10°C
• Coating: Nano GI coating

FAQs

1. What type of photography is the Fujifilm GF 23mm f/4 best suited for?

With its super-wide 99.9° angle of view and minimal distortion, it is perfectly suited for landscape and architectural applications.

2. Is this lens weather-resistant?

Yes, it features 9 weather seals, making it dust and weather-resistant, and capable of operating in temperatures as cold as -10°C.

3. How does the autofocus perform?

The lens uses an inner focusing AF system driven by a linear motor, ensuring fast and quiet autofocus for comfortable shooting.

4. What is the 35mm equivalent focal length?

The GF 23mm f/4 provides a focal length equivalent to 18mm in the 35mm format.

5. Can I control the aperture from the camera body?

Yes, the aperture ring includes a C (Command) position, allowing you to change the aperture value via the camera body's command dial. A locking mechanism prevents accidental changes.

How to Use / Care Instructions

To control the aperture from your camera body, rotate the aperture ring to the C (Command) position until it locks into place. While the lens is extensively weather-sealed for outdoor use, always wipe down the barrel with a clean, dry microfiber cloth after shooting in dusty or wet environments. Store the lens in a cool, dry place when not in use to maintain the integrity of the Nano GI coating and weather seals.