You're looking for your S3IS, correct?
I'm using a Opteka 10X Diopter on my S2IS. I tell ya what, at the very very center of the image it's "good enough" but beyond that (and I'm talking 3/4 of the image) it's just too soft. I highly suggest if you aren't going to go the DSLR route, put out on a quality close up filter such as the Canon 250D (meant for the short mm lengths).
. I use this setup on my S2 IS.
I have a
and its crap except in the very middle of the image.
The Canon 250D Close Up Filter 58mm is a much better option. It's hard to find in stock, period. But
B&H has it in stock in the 52mm flavor.
If you get a step down ring from 58-52
such as this one you can get the Canon 250D CUF in the 52mm thread and screw it onto the filter adapter I linked to above.
Hope that helps. By the way, I'm using the Canon 500D close up filter and it's fantastic, I highly doubt the 250D would be any less.
Oh, and if you are going to go through
B&H or Amazon, I know Abel would appreciate it if you went through the portals provided on the main page or through the "Support Pixtus" link in the Navbar :D