Actually Efle PL100 is a thin emulsion film. In fact, that is why it is so frustrating to use - it is easily scratched! BUT the effort is worth it. At least in my experience, when properly exposed and developed, it gives me the best negatives I have ever had. This films is so versatile that it can handle N+3 until N-3 no problem. And very consistent. Again, beware in handling it. Use kid gloves if you have to because it will scratch otherwise.