Memory card question for my Canon SD850 IS?
I know that if it's over 2GB then I have need of to get a SDHC card. Say I get a 6GB SDHC memory card, could I take that much worth of video on the camera? Meaning, is the video predetermined to the size of the memory card?
What's the difference between SDHC and SD? What should I look for in an SD memory card? In a SDHC?
Answers: SD (secure digital) and SDHC (secure digital glorious capacity) cards are basically indistinguishable. SDHC is just available contained by a larger capacity (usually 4GB & 8GB).
Previous Canon SD models have a 1GB movie file size check, but your SD850 IS has a 4GB directory limit. So, if you be to actually use a 4GB card, afterwards you would be able to filch a 1x4GB movie (8 minutes=1GB of high part, 640x480 at 30fps video).
But, most people would never consider shooting one movie of such a long length and usually shoot several movies of much shorter length.
Buying a 2GB card is a moral minimum capacity to consider. It will allow up to 540 shots (Superfine/Large) or smaller amount shots and several small movies. Remember that 1 min. of high aspect video eats up approx.128MB. If you plan to be in motion on a holiday, then buying a couple of extra cards would be a locked bet, as well as limiting how tons movies you take.
For optimum camera production and especially when shooting movies, you need to use a glorious speed SD card. The very popular, Sandisk Extreme III (which is across the world used in most camera reviews) is super quick, reliable and comes with a lifetime warranty and repossession software.
Don't forget to format it before first use (check your user guide)...and it should also be formatted after you enjoy uploaded all images/video to your computer and you afterwards wish to delete everything from the card. Doing this will prevent card errors/corruption.
correct luck...
a 4Gb video is quite long. You are more credible to take several 'clips' and afterwards later put them adjectives together on your computer. So the higher dimensions of the SDHC is not so important, what is more exalted is the write speed of the card.
Most SDHC are slower than SD at this stage. Cameras have not all the same been optimised for SDHC. For example, while the top of the field Canon EOS-1D Mark III writes quickly to particular SD cards, it's comparatively slow at writing to all SDHC cards, as mentioned here http://www.robgalbraith.com/bins/content...
There are different speed classes of SDHC. The 850 IS probably doesn't have need of the fast write speed for photos, but for video it will probably be of benefit. If you obligation the fast write speed, and can live near video's up to 2Gb each, afterwards several smaller SD (non SDHC) will be a faster option.
As a actual world example, I have a Pentax K100D DSLR. It can whip 3 shots in a second surrounded by RAW format. The images are around 10.5Mb each. On a briskly SD card it takes 12 second to write the 31.5Mb to the card. On a slower SD, it takes 22 second. That is much longer to wait past you can shoot again, so it is worth getting the fast card for the DSLR. Writing life-size video's to the SD card will be the same. If you filch a 1 minute video, the camera needs to finish writing the first up to that time it can start again.
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