It’s been all quiet on the Magic Lantern front for some time, ever since the 24p update really. But the genius that is Tramm Hudson has hit back with a new version for 5DmkII firmware 2.0.8 which has all the previous ML trimmings but now gives us “GH13″ style upped bit rates
This simply gives us better compression rates well less compression really. Obviously fast cards are needed and the video buffer clearly cannot cope with the high ones but it’s going to be fun to see how far the camera can be pushed…I know from tests that have been done the hight bit rates don’t like a lot of movement in the frame either so a fair bit of work still to be done but it’s a great start.
Personally though the bit rate has never been the issue with the Canons, it’s the line skipping which causes the moire and aliasing. Increasing the bit rate is not going to fix this. This is a far more fundamental issue with the camera and I cannot see a firmware update fixing this. A new way of sampling the sensor is needed…for the GH1 it was different the 17mbp/s was simply too low. AVCHD 24mb/s is superb and of course the higher ones with the hack are even better. We just must not get too caught up in numbers. It’s not the bit rate that makes the camera and I guarantee you just by going over 50mb/s will not make it acceptable for full BBC HD acquisition!
Below is what it can offer you..
+8 30p 7 Mbps Very low quality
-9 24p 32 Mbps
-10 24p 41 Mbps
-11 24p 51 Mbps
-12 24p 59 Mbps
-13 24p 62 Mbps
-14 24p 66 Mbps Best, sustainable in 24p mode?
-15 24p 68 Mbps 2 buffer bars
-16 24p 76 Mbps Only a few seconds
I have not tried this myself yet but will soon. This won’t screw with your camera…well it shouldn’t as it’s all RAM based so don’t be too scared to try it (but if you do end up with a brick then it’s not my fault!)
Check out this video below of test bitrates and go to the ML wiki page here. To be honest you cannot really tell much from this. We really need to see blow ups of frames to see if there is any difference…
Shot on a Canon 5d Mark II with a 24-70 mm Canon L-Series Lens.
Comparing the 3 top bit rate settings on the new Magic Lantern Bit Rate Firmware.