In the early 90s I was given an OM4. Dark, sinister and a devourer of batteries. Like a model girlfriend,high maintenance! We've been together, on and off ever since. Then her older sister arrived on the scene 4years ago. Silver haired OM1n was a breath of fresh air. After a prism clean and a MR-9 battery conversion she is strutting her stuff. Tall, shiny and her dials standing proudly erect, a lightweight beauty that fits your hand like memory foam and always delivers. I'm torn between sisters.