Eagle Eyes

Three things go bad when you get old. Your eyes, your memory, and...

I can't remember what the other one is.

Lame jokes aside, I can only find five things. I hope they are five points each, but I doubt it.

Just use the old "cross your eyes to fuse the two pictures" trick, like you do when you view two side by side images for a stereo view. The differences pop right out! In this case it doesn't really matter whether you relax convergence beyond the plane of the pictures or tighten it in front of the plane, whatever is easiest for you.

Is that cheating?

A neighbor once had a Waxwing with reversed color tips, probably a victim of the Windows of Death, not to be confused with Microsoft. It resided in the freezer for a while, before moving to NYC for show and tell, and has disappeared. I wish I had a picture. Does anyone have an idea how common the color reversal might be? rb

The first test here apparently is to notice the difference between a Flickr hosted screen capture (with an image of a script control button from a different site, inactive here), and the remote link to the actual test.

Some of the Cornell/Audubon test images rely on shadow detail not visible in a monitor adjusted for common office uses, but require settings on the bright side for serious photo display. There's a sequence of 5 images, with 5 target details each, once one pulls up the real test. Some of the test target click regions are larger, smaller, or shaped differently than the details they reflect.

This is a good monitor gray scale calibrator:

http://tedsimages.com/text/calibrat.htm

Perfect score first time.

Ok, I just realigned my eyes so the images intersected.