Quote:
|
Originally Posted by Starkler
The white ring is the best if the size accurately matches the diameter of the bright ring image from the cheshire.
|
I should expand on this.
Using a cheshire, if the white ring is slightly smaller in appearance than the reflected circle of light from the cheshire and fits inside it when viewing through the end, then very small misalignments are visible allowing a high degree of collimation accuracy.
For many people close enough is good enough, but doing this will enable you will get the best high magnification views possible.
FWIW, I can see a fair amount of collimation misalignment this way before I can notice it in a star test.
