Soft focus

One of my passions is vintage manual lenses from ebay. This one is a Sectron mirror lens. It is tricky to use. It has a fixed aperture, which must be pretty small as you can't see anything through the viewfinder unless you point it at the sky; it plays merry hell with the camera's metering system; it is almost impossible to focus.
Maybe someday I will take a decent photograph with it but today is not that day!