I'm using a SQL Server 2008 stored procedure to create a new record with this syntax: 

cmd.Parameters.Add("@photo", DBNull.Value)
cmd.ExecuteNonQuery()

but the result is a: 

Operand type clash: nvarchar is incompatible with image

Photo is not the only parameter but is the only image one, I am not passing a nvarchar but a null value, am I missing something?

vb.net image parameters dbnull
Edit
Report