Question
The latest official manual for Canon 60D says that a 1920x1080 movie with any FPS recorded takes up 330 MB/min.
The latest official manual for Canon 7D says that a recording with the same movie settings on this camera will also take up 330 MB/min.
Does this definitely mean both the cameras produce exactly the same results, or may it still be possible that one of the cameras produces worse video recording?
I'm sure it could be possible if those cameras were totally different, using different codecs for encoding, etc, but as those cameras are very similar and definitely using the same compression, I assume the aforementioned could be true, which makes me to ask the ultimate question: is the double DIGIC4 processor in Canon 7D useless when using it for shooting a video, compared to a single DIGIC4 processor in Canon 60D?
Answer
As you said, they could be 100% identical.
In all likelyhood they are not but given the bit-rate is the same for the same resolution, frame-rate and codec, I think it is safe to say that any difference will probably be negligible.
You are probably right that the second processor is probably not fully needed for video in this case. It is probably there to improve full-resolution continuous shooting.
Check more discussion of this question.
No comments:
Post a Comment