Didn't use mirror lock. It might be helpful in some situations, but it wouldn't have caused this kind of motion blur.
Quote from: EOBeav on March 12, 2013, 12:39:41 AMDidn't use mirror lock. It might be helpful in some situations, but it wouldn't have caused this kind of motion blur.Actually, a 1/20 s exposure is right in the range of shutter speeds (around 1/60 s to 1/2 s) where mirror slap can result in the camera shake-type blur you're seeing.
And for future reference (as someone else already mentioned), ISO 125 is not the best ISO for that camera body. Check out this chart that shows the sawtooth noise produced by the type of amplifiers used in the 5D2. You are better off at ISO 160. http://home.comcast.net/~NikonD70/Charts/RN_ADU.htm#EOS%205D%20Mark%20II_14
Personally, I use live view, set the shutter to a 20 second delay and fire it using the infrared remote.But in this case, I still thing the blurriness is caused by thermals rising from the canyon.