Summary of Reddit Comments on "prism fm"

• The prism component in a camera is difficult to repair or clean, and often replacement is recommended if it cannot be salvaged.
  • "That looks like desilvering on the prism, it can’t be cleaned and is very difficult to repair."
  • "Desilvering. You'll need a new prism."
• For a camera with a fungus-infested lens from the 80s, it may be more worthwhile to get another one to use.
  • "Lens is absolutely infested with fungus, just wondering if it is worth the effort to clean it, or should I just get another one to use."
• It is suggested to look for a parts body to use for a good prism and lenses are readily available.
  • "I’d look for a parts body to cannibalize for a good prism. In working order, they’re still good cameras, and clean 36-72mm lenses are readily available too."

This indicates that prism repair or cleaning might not be the most cost-effective solution for an old camera with a fungus-infested lens, and getting a replacement or finding a parts body for a good prism could be a better option.