BLOBs with Entity Framework 4 and SQL Compact 4

I asked this question earlier, but I failed to specify that I am working with SQL Compact 4, using Entity Framework 4 model-first development.

I am creating an EDM entity to represent a document, and the body of 开发者_运维百科the document will be a WPF flow document of about 100K or so. I'd like to create the Body property for the document as a binary, but that data type has an 8K maximum. So, the best data type appears to be image.

Here's my question: What EF4 entity property type do I use to map to image? Does EF4 map to an image type automatically, or do I have to modify the mappings? Thanks for your help.