1.75x ordered, eagerly waiting to see how it works with my setup. BTW, yes I like the image from MFT sensor (ZCam E2-M4, Lumix GH5s) with the Zeiss Distagon/Planar ZE T* lenses, using speedbooster. Those Zeiss’es have a 58 mm front thread, so fitting should be easy… I just hope the taking lens front glass diameter will be enough for the Aivascope 1.75x (43 mm for Zeiss Distagon T ZE 35mm f2, 40 mm for Zeiss Planar T* ZE 50 mm f1.4, with approximate measurement).