Is the leica macro elmar m 90mm f 4 hard to focus manually?

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From Leica Macro-Elmar-M 90mm f/4: Leica Macro-Elmar-M 90mm f/4: A macro lens by Leica for Full frame cameras, 90mm f/4. A collapsible, light 90mm. Specs - Maker: Leica - Focal length: 90mm (macro) - Maximum aperture: f/4 - Made for: Full frame sensors - Mounts: Leica M - Stabilised: no - Autofocus: no, manual focus What it frames like - On full frame (Leica M): as marked, 90mm. Cameras it fits - Leica M9: Full frame - Leica M9-P: ...

From Buying used: Checking a camera body: - Shutter count. Shutters wear out eventually. Ask for the count, or read it from a test photo's metadata with an online tool where the brand supports it, and compare with the rated life for that model. - The sensor. Take a photo of a plain sky at f/16 and look for dark spots (dust is fixable; scratches are not). - Ports, buttons and dials. Try every button, the card ...

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