From: michael-AT-shed.com
Date: 03 May 2008 10:58:36 UTC   (02:58:36 PM in author's locale)
To: <xtensionlist-AT-shed.com>

The fresnel lens definitely is biased in favor of side to side motion,
but also up/down is considered...look at one of the lenses next time
you can.

Some have found that mounting these upside down does seem to avoid
shorter animals.

But another thing is that you can mount tubes, or cardboard flaps
as blinders and shapers...

there once was a very long thread about this...
michael

mfjlaw-AT-gmail.com said :

>
>I recall a conversation in the past about the angle of view for the
>various x10 motion sensors - does someone have that conversation
>reference? I recall that theygenerally see side to side and not up
>and down.
>
>Mark J