What is the voigtl nder apo ultron 90mm f 2 good for?

Here is what the site says about that.

From Voigtländer APO-Ultron 90mm f/2: Voigtländer APO-Ultron 90mm f/2: A prime lens by Voigtländer for Full frame cameras, 90mm f/2. Specs - Maker: Voigtländer - Focal length: 90mm (prime) - Maximum aperture: f/2 - 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: Full frame - [Leica ...

From Voigtländer Macro APO-Ultron 35mm f/2: Voigtländer Macro APO-Ultron 35mm f/2: A macro lens by Voigtländer for APS-C cameras, 35mm f/2. A 1:2 macro for APS-C; sold for Nikon Z as the D35mm.

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