I know this is OT from original topic a bit, but here are some wide open shots with Rollei 35S.
Shot with Rollei 35S and Sonnar 40mm/2.8 Rollei-HFT lens at f/2.8, 1/250s, 1.5m or 5 feet
(focusing aid was my Bessa R2S RF-camera with W-Nikkor 3.5cm/1.8).
Rollei Retro 100 film developed in Agfa Rodinal, 1+50, 20C, 10min.
Shot with Rollei 35S and Sonnar 40mm/2.8 Rollei-HFT lens at f/2.8, 1/30s.
Rollei Retro 100 film developed in Agfa Rodinal, 1+50, 20C, 10min.

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By the way, I also think it is strange, that Rollei GmbH wrote Rollei 35S Sonnar "does not have anything to do with the exchangeable lenses of the Rollei 35 RF". It is against their marketing hype...

They also wrote that "Rollei had sold out this lens a long time ago" and they don't know which dealer still might have some stocks.