btw. the only thing I don't like about that Pentax is the 50 degree FOV. For a 7x50 that would be okay, but for 10x50 I'd want at least 60 degrees, even if the outer 10 degrees is not as sharp as the centre. A 5 degree true field is fairly small and makes star hopping more difficult.
This is probably more like it (65 degree fov):
http://centre.net.au/Celestron_10x50...ar_0008RT.html
I'd try to get a good price on that one from
www.aoe.com.au