Wide Open Censored Canon Eos 5d Criticism?

Canon eos 5d criticism? - wide open censored

Recently I read some reviews on the 5D, and I would like opinions on their validity.

Questions of the sensor full-frame: In short, "and Canon L" lenses do not even illumination of light on the censorship. Vignetting is a serious problem for the 5D. If you want to clear the results with a complete solution, you have to stop a lot. Swing and a failure of the portrait shooters looking to open it.

Color rendition is terrible. It is a sensitive cyan cast to most images. Auto focus is fast but inexact. Only 65% or less of my images showed critical focus, the Canon should be "acceptable".

Poor Speed 3 frames per second is not examined more frequently than other digital SLR cameras.

How do you feel about these questions? Hold water? What alternatives are there for the 5D () for similar price.

Thank you.