Quote:
Originally Posted by CoombellKid
I really
fail to see the benifit on a scope small enough you can peer through the EP
from the ground. Or at least maybe need a step stool. So IMO (but it's only
mine) a servo cat on this size scope or even an f/4.5 18" is overkill. A well
made truss dob of any flavour the action should be so smooth you dont
need tracking.
|
I thought so once too.....
http://www.cloudynights.com/documents/Stellarcat.pdf
Read the summary at the end.
Of course tracking is not essential, esp. if a dob is designed right. But it has a few advantages - I find viewing much more relaxing without the nudge ,nudge; it is easier to share the views with others; you can see more detail; the object can be kept in the diffraction limited center of the FOV, you don't need to rebalance for heavy eyepieces and .....
it is really COOL!
