# 🐦 How sharp is the Fujifilm XF100-400mmF4.5-5.6 R LM OIS WR lens at different focal lengths?

*Published: 2024-06-21 | Updated: 2024-07-02 | Source: https://shopsavvy.com/answers/how-sharp-is-the-fujifilm-xf100-400mmf4.5-5.6-r-lm-ois-wr-lens-at-different-focal-lengths*

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## Product: Fujifilm XF100-400mm
**Brand:** Fujifilm

If you're thinking about the Fujifilm XF100-400mmF4.5-5.6 R LM OIS WR lens and wondering about its sharpness, here's what we've found. This lens is pretty sharp across its focal lengths, from wide to zoomed in. 

At 100mm, the lens delivers clear, precise images, even when you're using those wider apertures. When you zoom all the way to 400mm, it still holds up well in terms of sharpness. This means it’s a solid choice if you're shooting anything from close-ups to distant wildlife or sports and need that reliability throughout the zoom range.

The Optical Image Stabilization (OIS) is a big plus too. It helps keep your shots clear and reduces shake, especially handy if you’re shooting handheld at 400mm. This stabilization is rated with a significant 5-stop protection according to the manufacturer's product description, which helps prevent your images from getting blurry even at the max zoom.

Speaking of the lens construction, it has a pretty advanced setup with 21 optical elements in 14 groups, including five ED lenses and one Super ED lens. This design helps minimize things like chromatic aberrations that could mess with image sharpness, as the manufacturer specifies.

And a quick note on the build—it's solid and a bit heavier, about 3.03 pounds, but folks who use it say it's manageable, especially compared to some [DSLR telephoto lenses](https://www.shopsavvy.com/redirect?url=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DDSLR%2Btelephoto%2Blenses%26tag%3Dssw.ans.tx-1-20). 

The lens is also dust and water-resistant, which comes in handy for shooting outside.

Overall, this lens does a great job maintaining sharpness from one end of its range to the other. Just make sure you've got a compatible [Fujifilm X-series camera](https://www.shopsavvy.com/redirect?url=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DFujifilm%2BX-series%2Bcamera%26tag%3Dssw.ans.tx-1-20) body to get the most out of it. 

If you’re into wildlife, sports, or anything needing a close focus across distances, this could be the lens for you.

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*Where this comes from: This answer is based on ShopSavvy's product database, real-time pricing from thousands of retailers, and analysis of user reviews to give you a well-rounded picture.*