Cosina Voigtlander just launched an F1.8 ultrawide 21mm M-mount lens. Cosina is the company that also manufactures the ZM lens line for Carl Zeiss. ZR is speculating about a new fast wideangle ZM lens with the same f-stop like the new CV lens. By watching the M-mount lenses available, a fast 25mm lens would nicely fill the gap in the existing lines of the known M-mount lens manufacturers. Therefore ZR’s prediction is a ZM 25mm F1.8 lens. Photokina starts tomorrow. So maybe we will know in short.