Seeing is believing! I love taking out my Diana duo, the F+ and the Mini, but I was having trouble seeing my focus arrow in the dark. Time after time, the sun would go down and the night's darkness was upon me. I couldn't focus, I had to fix this!
It was an easy solution. I grabbed some glitter nail polish and marked my arrow. Lo and behold, I could see! Adding a little bit of shimmer and shine set the focus arrow apart from the black backdrop. If you don’t have nail polish, try to glue something shiny- foil, paint, or a metallic sticker- anything that can reflex a little bit of light!
All in all, I have no trouble focusing anymore. My glittery arrow keeps me focused at anytime of the day!