Canon to Solve 5D Mark II Black Dot Issue
A number of internet discussion board and portal are talking about the Canon EOS 5D Mark II Black Dot issue. The issue mostly occurs during nighttime landscape photograph. Some new users of the first Canon HD movie recording capable DSLR reported that the issue occurs in higher ISO level. However, there are discussion about the black dot issue when using low ISO setting such as ISO100.

Canon to Solve 5D Mark II Black Dot Issue