The 5D Mk2 is a Very Good Canon SLR Digital Camera

The good aspects - The Canon 5D Mk2 is a very good choice if you want to buy a DSLR camera that is full-frame. I used to have a Canon 1DS Mk2, but this new model is more sensitive to light by at least one F-stop. It also has an accurate and fast auto focus system during single shot mode. Also the auto-exposure system is more is more accurate than the one on my former camera.
The LCD screen is pretty impressive. It has a 3 inch LCD screen with 900,000 pixels. Menus are easy to handle and understand and "Live View" will surely impress you if this is the first time you own a DSLR with this feature. But keep in mind that it is a battery drainer and once the imager circuitry from the CMOS heats up the live-view will be automatically turned off not to add noise to the images.
The battery grip of the BG-E6, which is optional, is also a very good accessory to take into consideration, as it's a lot easier to hold the camera taller using it.
The bad aspects - When in camera mode you don't have any control over shutter speed, ISO setting or iris. It has a lock button which you press when you think you've got the best image that the camera automatically adjusts in the settings area. The thing is that after each photo, the lock resets, so you risk in getting non consistent exposures when trying to repeatedly take a scene. You can only adjust the temperature setting.
The camera can only record at 30.00 frames per second instead of 29.97. It looks like a small difference, but due to this you'll need to modify every single file's header with Apple Cinema Tools or some other similar program before editing the movie you made and turning it into a regular broadcast, at 30FPS and 1080i/1080P. If you don't do this you'll have to render every single scene on the 30 fps time line, resulting in some skipped frames or just set up a 30.00 fps time line.
But this is only a problem if you're shooting for film or television, as no such broadcast operates at 30.00 fps. If you're using this camera only for web released videos, the 30.00 fps won't be a problem to you.
Another thing is the camera records audio using a sample rate of just 44.1kz when the standard is 48kz. Only Apple's Final Cut Pro can work with this file at any sample rate. As I've said before, this won't be a problem if your videos are for uploading on the Internet.
Also you may notice the H.264 block artifacts in some low light or low contrast scenes. I could say that these artifacts are more obvious than the Canon's HF10, 1080 video camera encoding.
The video is noise-free except for red. You'll especially notice this when shooting in shadow areas.
Getting the perfect SLR camera, is never an easy thing, especially with the way digital technology is constantly changing. Fortunately, there are plenty of helpful websites online, that can narrow down your search and help you find the DSLR camera with all the features important to you.
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