error consistent across all 5D MKII?

[Steve Martin]

My 5D Mk II stopped dropping frames when I switched to a very fast card. Hope this helps,
Steve.

[Robbie Carman]

[araw deleon] “Has anyone used a 5D MkII or 7D that does NOT drop frames when shooting video??? “

I would say that no this is not a consistent thing. Does it happen sometimes? Yes, mainly due to slow cards or in some rare cases camera overheating.

I’m willing to bet if you’re getting dropped frames consistently and/or you get the buffer indicator consistently, your card is too slow. For VDSLRs a UDMA card is a must when shooting video. I’ve found that a the bottom of the heap you should use 133x (20MB/s) cards but you’ll get better results with faster cards my personal feeling is that the best bang for the buck when it comes to storage size and speed for VDSLRs are either the 266x (40MB/s) or 300x (45MB/s) cards. 400x and 600x cards are a little overkill for the data rate of VDSLRs when shooting video but if you do a lot of burst still shooting there can be big benefits. Also remember the fast the card the fast the potential transfer to your machine.

Also just a personal feeling I’d stick to the brand name cards like San Disk, Kingston, Trancend etc

Robbie Carman
—————-
Colorist and Author
Check out my new Books
Video Made on a Mac (https://bit.ly/5fwxM)
Apple Pro Training Series DVDSP (https://bit.ly/3B2uS7)

[Earl Sisson]

Also be aware that the camera might drop frames if you are NOT shooting in “M” (manual) mode. If the camera automatically adjusts it’s aperture with an EOS lens, it will drop 3 frames.