Has anyone experience of these Spheretec Concenter collimation tools -
(http://spheretec.de/img/se125_masse_223_157_png.png) (http://spheretec.de/10047_2.php)
I am thinking of gettting one instead of a Cheshire, the laser collimator I got is hopeless and a collimation cap doesn't really cut the mustard. The english instructions are here (PDF) (http://www.spheretec.de/pdf/Collimating_with_the_Newton_Concenter_Eyepiece.pdf) but it seems too easy :}