Bucky wrote:
When one previews the picture in the on-camera screen, you will notice that the camera apparently loads a small image first. Then, if you keep that image in the monitor for a few seconds, it is substituted with a larger one. You can see the effect when you call up a preview of a shot with a detailed pattern such as ripples on water - after several seconds you will see a noticeable shift in the pattern when the second (presmably larger image suitable for zooming into) is loaded and substituted.
Just my personal observation.
I think what's happening is, a lot of pixels are loaded up to the display, but perhaps only 40% of them, primarily to get something that looks like an image displayed.
That keeps the viewer patient, while he's waiting for the whole thing to display, at the full resolution intended.
It's just a ploy to keep the viewer happy. Soon the full photo/image will be displayed, but if he had to wait for the entire thing to load from the start, he might go elsewhere!
First pass, maybe 30-40% of the detail of the image, but full size (4x6" or whatever...)
Second pass, fill in the missing pixels, but a little more slowly. Since the viewer has a pretty good idea of what the image is going to look like, he's far more patient and can wait for it to fill-in.
There's no replacing of one low-resolution image with another high res image. It's a filling in of pixel information left out of the initial pass.
keith whaley
