The Cheshire collimation device is the simplest, most intuitive tool for adjusting the primary mirror collimation in a Newtonian telescope system. In addition, the Cheshire is relatively insensitive to poor fit in the focuser since many, especially inexpensive focusers, are oversize.
We suggest using the Cheshire in conjunction with our single beam laser collimator. First use the laser to adjust the alignment of the secondary mirror, then adjust the primary mirror alignment using the Cheshire. Using this technique, we align our scopes in under two minutes!
Farpoint makes the Cheshire in 1-1/4 and 2 inch sizes to accommodate both common focuser sizes.
Each Cheshire is machined from aircraft grade aluminum on our precision CNC lathe to exacting tolerances. They are then polished and hard anodized for a superior appearance and durability. The grip ring is knurled for a sure handhold.