FUJIFILM Fujinon GF 45-100mm f/4 R LM OIS WR Autofocus Lens for G-Mount, Black {82}

Fujifilm's GF medium format standard zoom built for field work

The 45-100mm f/4 zoom covers the most-used focal range in the GFX system, giving you a 35mm-equivalent spread from roughly 36mm to 79mm across a medium format sensor. With 16 elements arranged in 12 groups, including a Super ED element, three aspherical elements, and one standard ED element, the optical formula addresses spherical aberration, field curvature, and chromatic aberration across the full zoom range. The result is the kind of resolving power that justifies shooting medium format in the first place.

The linear motor autofocus is near-silent and fast, which matters when you're working close to subjects or need to shift focus quickly without disrupting a quiet environment. Five-stop optical image stabilization means you can work handheld in low light without defaulting to a tripod for every shot. The lens seals at 11 points and operates reliably down to 14°F / -10°C, so weather or cold temperatures aren't reasons to pack up. At 1,005g and 144.5mm long, it carries like a serious telephoto but handles like a walkaround. The aperture ring gives direct, tactile control that GFX shooters expect.

For a native medium format zoom with this level of build quality, image stabilization, and a weather seal rated for genuine cold-weather use, the value proposition is straightforward.

Who It's For

Portrait photographers working on location get a focal range that covers tight environmental contexts to short telephoto compression, all at f/4 with stabilization to support natural light work. Wedding photographers benefit from the near-silent autofocus in ceremony settings alongside the weather sealing for unpredictable outdoor conditions. Landscape photographers shooting in cold or wet environments can rely on the 14°F operating rating and the optical correction that keeps edges clean at medium format resolution. Documentary and editorial shooters who need one GFX lens to cover a full day's range without switching glass will find the 45-100mm span handles most situations.

Key Features

• 45-100mm focal length with 62.6° to 30.6° angle of view
• 16 elements in 12 groups with Super ED and aspherical optics
• 5-stop optical image stabilization for handheld medium format work
• Linear motor autofocus delivers near-silent, fast focusing performance
• Weather and dust sealing at 11 points, rated to -10°C
• Compact 1,005g body with 144.5mm length for field portability

FAQ

What's the 35mm-equivalent focal length range?

45-100mm on the GFX sensor translates to roughly 36-79mm in 35mm terms, covering standard zoom territory without the ultra-wide or telephoto extremes.

How does the autofocus perform in quiet environments?

The linear motor is near-silent and fast - you won't hear AF hunting during video or in situations where shutter noise matters.

Can you use this lens in cold weather?

Yes. It's sealed at 11 points and rated to operate down to 14°F / -10°C, so winter field work is viable without special precautions.

What optical elements control aberrations across the zoom range?

One Super ED element, three aspherical elements, and one standard ED element work together to manage spherical aberration, field curvature, and chromatic aberration from 45mm to 100mm.

How much does five-stop image stabilization help handheld shooting?

In low light or with longer focal lengths, you can reliably shoot 2-3 stops slower than you'd normally risk without a tripod, especially on high-resolution GFX sensors where every stop matters.

What's the minimum focusing distance?

0.65m (2.13 feet) across the zoom range, so you can get close for environmental portraits or detail work without switching lenses.

Is the aperture ring clickless or stepped?

It's a stepped aperture ring with direct, tactile control - you get tactile feedback at each stop, standard for GFX lenses.