Hi Howard and group;
Do you know if the manual or quick start guide (if one exists) is on I can
work this thing?  I took a look and didn't see it but I have missed some
things before.  I took another look at the qst June product review for the
480 but unfortunately they don't get into the interesting issues concerning
accessibility.  They don't really care if things beep or not.  Am I correct
that if your pockets are deep enough you can install two optional if
filters such as 1.8 and 500?
Has anyone here used both a 570 and the 480 for a real comparison?
Rich