S1 and S2 Interpolation

[ballroom_boy]

Hi All,

I've read that the interpolated 12 Megapixel image on the Fuji S2 Pro delivers an image with about 9 Megapixels in "real" resolution.

I have an S1 - does its interpolated 6 Megapixel image deliver any more resolution over its standard/non-interpolated 3.4 Megapixel image? I haven't used the S1's interpolated mode (yet) and wonder if the trade off in larger file size is worth the extra "interpolated" resolution. I've read elsewhere that I am better off to shoot a 3.4 megapixels image and upsample in Photoshop.

Any thoughts?

Thanks for your help.

Roël :)

[Laren]

The S1 and S2 CCD's add a pixel between every four pixels by averaging four pixels, and then adding an extra pixel based on that information.

The nice thing about this is that it does not destroy or alter any of the original pixels, or the information they contain.

This seems to be a superior method of interpolation.
I beleive Fuji calls it Exterpolation.

That's how the S2 is able to increase it's resolution, and why the camera does so well in tests against other six megapixel SLR cameras.

Although I have not read it anywhere, I would expect the S1 to produce a photo closer to a 4.5 megapixel camera, as it uses the same arrangement and interpolation method that the S2 does.

From my experience, saving photos at the highest resolution at normal compression gives me a file the same size as a photo saved at half the resolution as a fine JPG.

Only the resolution is much better, and the difference in quality is much more noticeable than the difference between a normal compressed JPG and a Fine JPG, or even a TIFF. It also allows me to take fair liberties when cropping.

I suggest sticking with maximum resolution with the S1 or S2 and sacrificing the JPG compression to save space when necessary.

You will not have as much resolution if you take the photo at 3 megapixels (with the S1) and then upsample in Photoshop.