Losmandy Polar Alignment Scope
I find this accessory to work as advertised. I do deep sky imaging with a 900mm 6 scope and the polar alignment I get with this product in about 3 minutes is all I need. Although you can use 3 stars for alignment in the reticle, I just align polaris and the 2nd, star and get good results. It does require some adjustment to get the best results, but out of the box it was pretty close.