Bill, Even though I dearly love using ANY Agfa films, the Optima series, if not kept at near ideal temperatures, can really give some unusual color results, especially if out of date. I still have 2 rolls of CT64 slide film with enclosed mailers, in my freezer. I bought a brick of this film, six months before expiration date over 20 years ago!! I just send the film in to Agfa in NJ in the mailer, they air freight it to Germany, process it, and air mail it back to me, all in about 5 days. The results are great and all I have to do is send a note, acknowledging the film to be out of date and telling Agfa to process it anyway. This slide film cannot be processed E-6 accurately because I've tried it and the colors are very muddy!! By the way, I bought the film as an as-is close-out from a small camera store in Brooklyn, NY about 20+ years ago, for $1.00 per roll!! Art Tafil natstek@xxxxxxx