Aha! Those objects I couldn’t clearly identify earlier in the week on our walk across Cardiff Bay barrage, are buffers for ships using the docks.

Although I find these scenes interesting and those buffers fascinating, I wondered what they might be like in black and white. It is perhaps best to say b&w rather than monochrome because I deepened the darker areas, strengthened the contrast, added some grain and left no hint of colour in any spectrum.