Had a pair of these for about a year or two now.
http://www.optcorp.com/product.aspx?pid=3512
For a pair of dirt cheap roofs they work great ,light enough to be hand held and show up a fair bit of sky.
I do notice some false colour around the outer 10% of the view through daytime use but its not to objectionable..Its also fantastic to see like most of my astronomy purchases these are now selling for considerably less than I paid for them
.