That is a loaded question because the Mark II is highly configurable in terms of what you write to the card when taking a picture. =]
You can choose raw, JPEG, or a combination of raw and JPEG. The JPEGs can be any variety of sizes and compression ratios.
It is also affected by the ISO you are shooting at. Higher ISO images compress less (Canon's raw format is still compressed, just losslessly).
That being said at low ISO's on a 1GB card, you get about 90-95 raw-only images, about 175-185 large (8.2MP) quality-10 JPEGs, about 300-325 large quality-8 JPEGs, and about 375-400 large quality-6 JPEGs. Mixing raw and large/quality-8 JPEGs gets you about 70 per 1GB.
Personally, I have 2 non-accelerated run-of-the-mill 1GB cards and a 4GB microdrive (bought off eBay, probably ripped from a Creative MP3 player) and find that I rarely need to break out the 4GB drive unless I'm doing a lot of action shots at 8.5 frames/second.
Don't forget that the Mark II has both a CF and an SD slot, and you can configure it to write to both cards simultaneously (for creation of an immediate backup) or to write to one only after the other fills up (so you don't have to switch cards as often).
Message edited by author 2004-07-09 14:42:37. |
