This post is for blogging and software geeks, and not necessarily for art-oriented readers.
Regular readers probably notice that I've had to suggest double-clicking on images to both enlarge and improve quality. The quality factor puzzled me because, at 2Blowhards, I always got clear images, provided the source image was fine. I also knew that other blogs on Blogspot had nice, clear large images. What was I doing wrong?
It turns out that it was my my error: I was adjusting the Blogger software produced HTML code without adjusting everything necessary to preserve quality.
Default Blogger takes images and sizes them to a set maximum. Because this blog focuses on images, I want them larger than what Blogger was providing. So I go into the HTML code and resize images to suit my needs. Often, the result was a bubbly appearance. Finally I shrugged off my habitual torpor and discovered that the Blogger-generated code included, buried in four or five lines of image-specific code, this: "s320" -- which seems to be a secondary size specification. And by changing s320 to s640 I could get clear images.
So from here on, s640 it is. I also went back and modified the HTML for some of the most popular older posts and I'll do others as time and inclination permit.
Apologies for not dealing with this problem sooner.