[ojbyrne]

I have a 5d and use flickr, where I typically upload jpegs at full res and the highest quality settings. It's not uncommon for me to run into flickr's 10 meg limit. I'd say the average jpeg size that I upload there is more like 7 mb.

[callmeed]

I personally haven't seen a lot of 7+mb JPEGs from a 5D but I'm sure it's possible. When I output images from a wedding at level 10, they generally range from 2 to 5mb. My editorial work usually gets exported as tiffs, so those are huge.

I'd consider saving your JPEGs at level 10 in Photoshop (max is 12). It's unlikely you'd ever need or notice the difference. In fact, my print lab specifically requests this.

[ojbyrne]

I do always use 12, in fact I generally crop first before reducing the quality. I probably don't notice the difference, but since flickr rescales to make several copies I always felt that uploading at the highest quality was a good idea.

[ojbyrne]

My 5D Mk II just shipped. Right around the time I posted this comment. I feel serendipitous.