Quote:
Originally Posted by Steve Wolf
(Post 1334290)
No. Digital cameras use either the FAT or FAT 32 file system. FAT is limited to files sizes of 2 GB while FAT32 is limited to 4 GB.
|
DING DING DING, we have a winner. You sir, are correct, its a 4gb limitation due to fat32 file system limitations... and directly relates to CF card specifications.
from wikipedia....
Filesystems
There are varying levels of compatibility among FAT32-compatible cameras. While any camera that claims FAT32-capabilty should read and write to a FAT32-formatted card without problems, some cameras are tripped up by cards larger than 2 GB that are completely unformatted, while others may take longer to apply a FAT32 format.
The way many digital cameras update the files system as they write to the card creates a FAT32 bottleneck. Writing to a FAT32-formatted card generally takes a little longer than writing to a FAT16-formatted card with similar performance capabilities. For instance, the Canon EOS 10D writes the same photo to a FAT16-formatted 2 GiB CompactFlash card somewhat faster than to a same speed 4 GiB FAT32-formatted CompactFlash card, although the memory chips in both cards have the same write speed specification.[10]
The cards themselves can of course be formatted with any type of file system such as JFS and can be divided into partitions as long as the host device can read them. CompactFlash cards are often used instead of hard drives in embedded systems, dumb terminals and various small form-factor PCs that are built for low noise output or power consumption. CompactFlash cards are often more readily available and smaller than purpose-built solid-state drives and can be used to obtain faster seek times than hard drives.
Quote:
Originally Posted by Jon Fairhurst
(Post 1334294)
While that's true, Canon could easily bridge multiple files for continuous video beyond 30 minutes. They don't. And the word is that it is tax related.
Sure, they could bridge HD files, but just up to 30 minutes, but that would be a bit transparent, wouldn't it? So, we end up with 4GB files that don't bridge.
|
Please tell me ANY video camera (prosumer or professional) that bridges files? AFAIK, the xpress cards used in cameras like the Sony EX dont, I know the RED doesent, and im almost positive that the prosumer ones using sony memory sticks or sd cards dont. Tapeless medium is fairly new now, so up until this point it was never a issue regarding writing files to memory cards. While I dont think its "impossible" to create a program that bridges files, its definatley not worth the trouble for canon or nikon to devote resources too. You guys seem to want to have your cake and eat it too. If your that concerned about length of recording, go buy a video camera. Thats what they do.
It would be like me bitching because my video camera shoots noisy pictures in still mode. DUHH>..HELLO, it was never designed to be a still camera, just a feature they added.
If you really want something to bitch about, how about the h.264 compression used on the video? Rumor has it the 7D may be able to output uncompressed video, which would be alot more useful for videographers than getting rid of the 4gb limit.