Method 1:
Obtain an ADO or DAO recordset containing the field.
Extract the data from the field to a temporary file, using a GetChunk loop.
Display the temporary file in an Access Image Control (requires relevant Graphics Filters etc).
Method 2:
Use a third-party component designed specifically for this. Our control (DBPix) for example, binds directly
to binary data in Access Reports, giving a high-performance solution with no code.