Is the laowa 17mm f 4 zero d gfx hard to focus manually?

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From Laowa 17mm f/4 Zero-D GFX: Laowa 17mm f/4 Zero-D GFX: A prime lens by Laowa for Medium format (44 x 33) cameras, 17mm f/4. Specs - Maker: Laowa - Focal length: 17mm (prime) - Maximum aperture: f/4 - Made for: Medium format (44 x 33) sensors - Mounts: Fujifilm G - Stabilised: no - Autofocus: no, manual focus What it frames like - On Medium format (44 x 33) (Fujifilm G): like 13mm on full frame; f/4 gives about the ...

From Laowa 19mm f/2.8 Zero-D GFX: Laowa 19mm f/2.8 Zero-D GFX: A prime lens by Laowa for Medium format (44 x 33) cameras, 19mm f/2.8.

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