Fujifilm G-Mount Prime GF250mmF4 R LM OIS WR User Manual

Fujifilm G-Mount Prime GF250mmF4 R LM OIS WR Lens manual cover

Pages 172

Year 0

Language(s)

of 172

Fujifilm G-Mount Prime GF250mmF4 R LM OIS WR Lens Specification

The Fujifilm G-Mount Prime GF250mmF4 R LM OIS WR Lens is a high-performance telephoto lens designed for the GFX series of medium format cameras. With a focal length of 250mm, equivalent to 198mm in 35mm format, it offers a maximum aperture of f/4, providing exceptional control over depth of field and low-light performance. The optical construction consists of 16 elements in 10 groups, including one super ED and two ED elements, which minimize chromatic aberrations and ensure superior image quality with edge-to-edge sharpness.

The lens features a linear motor-driven autofocus system for rapid and silent focusing, making it suitable for both still and video applications. Its Optical Image Stabilization (OIS) system compensates for up to five stops of camera shake, enhancing handheld shooting capabilities. The GF250mmF4 is equipped with a weather-resistant design, incorporating seals at ten points on the barrel to resist dust, moisture, and low temperatures down to -10°C, making it suitable for challenging environments.

Additionally, the lens includes a focus limiter switch, a focus control button, and a full-time manual focus override for precise focusing. The lens has a minimum focusing distance of 1.4 meters, with a maximum magnification of 0.22x, allowing for close-up shots with remarkable detail. The front of the lens accepts 82mm filters, and it is compatible with Fujifilm's 1.4x teleconverter, extending its reach to 350mm. Compact and robust, weighing approximately 1,425 grams without the tripod collar, the Fujifilm GF250mmF4 R LM OIS WR Lens combines advanced optics with professional-grade features, making it an essential tool for photographers seeking remarkable clarity and versatility in their telephoto work.

Fujifilm G-Mount Prime GF250mmF4 R LM OIS WR Lens F.A.Q.

How can I achieve the sharpest focus with the Fujifilm GF250mmF4 lens?

To achieve the sharpest focus, use the lens in combination with a sturdy tripod and engage the Optical Image Stabilization (OIS) for handheld shots. Additionally, utilize the focus limiter switch to reduce focusing time and increase accuracy.

What are the best practices for cleaning the Fujifilm GF250mmF4 lens?

To clean the lens, use a blower to remove dust and a microfiber cloth for smudges. For stubborn spots, use lens cleaning solution sparingly. Avoid touching the glass with fingers to prevent oil transfer.

How do I enable the Optical Image Stabilization (OIS) on the GF250mmF4 lens?

The OIS can be enabled by switching the OIS switch on the side of the lens to the 'ON' position. This feature helps in reducing camera shake, especially in low-light conditions or at slower shutter speeds.

Can the GF250mmF4 lens be used in rainy conditions?

Yes, the lens is weather-resistant (WR), allowing it to be used in challenging weather conditions such as rain and dust. However, it's advisable to use additional rain protection for prolonged exposure to harsh weather.

What should I do if the autofocus on my GF250mmF4 lens is not working properly?

Ensure that the lens is securely attached to the camera and that the autofocus mode is enabled on both the lens and the camera. If problems persist, clean the lens and camera contacts and update the firmware if necessary.

How can I update the firmware for my Fujifilm GF250mmF4 lens?

To update the firmware, download the latest version from the Fujifilm website, transfer it to a formatted SD card, and follow the camera's instructions to proceed with the update while the lens is attached.

What are the benefits of using the focus limiter switch on the GF250mmF4 lens?

The focus limiter switch restricts the focusing range, which speeds up focusing and improves accuracy, especially useful for fast-moving subjects or when shooting within a known distance range.

How can I reduce chromatic aberration when using the GF250mmF4 lens?

Chromatic aberration can be minimized by stopping down the aperture and ensuring the subject is well-lit. Post-processing software can also help correct any residual aberration.

What maintenance steps should I follow to ensure the longevity of my GF250mmF4 lens?

Regularly clean the lens elements and body, avoid exposing it to extreme temperatures, store it in a dry environment, and use lens caps when not in use to protect from dust and scratches.

Is the GF250mmF4 lens compatible with teleconverters, and if so, which ones?

Yes, the GF250mmF4 lens is compatible with Fujifilm's GF1.4X TC WR teleconverter, which extends the focal length to 350mm while maintaining high image quality.