Three comments on the alleged 18 - 22,000 Hz frequency response claimed by these headphones -

1) Frequency response is meaningless unless you show the response curve. The rolloff at the low and high ends is probably so much that there is essentially no low or high frequency response;

2) CDs andf other program sources have essentially no output at the low and high frequency ends so that if the headphones really did have any sort of response at these limits, the program sources do not have any output there;

3) The human ear does not have any ability to hear a 22,000 Hz tone and very limited ability (if any) to hear an 18 Hz tone so, again, response at this range is useless. Most young people have caused enough damage to their ears that they have reduced hearing ability and older people have high end hearing loss as a natural part of aging.

Bottom line - these earphones may sound good but the specs are useless lies.

DON

Have you thought about a spotting scope? It may be too powerful and you have to get one that can focus closely. However, it does have the advantage that you can leave it on a tripod and eliminate scope movement. Also, I believe that you can set up your camera to take pictures through the scope.

DON