Hello and Welcome to the forum. I am not a Cambria expert, but it should help you to know that Cambrias are not a "natural" orchid species, but rather the term is used to describe hybrids of Odontoglossum, Oncidium, Miltonia, Cochlioda Lindl. and Brassia. I would think they are like Burr. types of plants. Try google-ing on on the different types listed above for more info.
How big are the black spots? If they are small and scattered across the leaves, that is normal for many intergenics. As for the wrinkling, that too can be fairly common with intergenics of these types, especially if they have been allowed to dry out. Keep a close eye on the moisture, but don't drown it. If the black starts to spread, or anything starts to get mushy - then it is rot and you should try to cut away the rotted areas with a sterile blade. I'd keep it away from your other orchids until you are sure it is not contagious.
Post back and let us know any more details and how it is going.