Deja vu

"Starstuffed" wrote in message link.net...
I wrote in message
link.net...

Also, the racked in height is 3.125 inches as opposed to the stated 3.5
inches. I'm not quite sure that I'm interpreting the travel correctly.
The
details for the one pictured online said offers 3 1/8 inches of travel.

It would seem to me that if a focuser has a racked in height of x inches and
a travel of y inches then the racked out height should be x + y inches. Is
this not correct? The one I received has a racked in height of 3 1/8 inches
and a racked out height of 5 inches so it has only 1 7/8 inches of travel.
Is this right? If so, this is a rather dramatic difference from the one
described in e-scopes online catalogue where they state it has 3 1/8 inches
of travel. Have I got it all wrong?

Martin

I'm sorry Martin I misread your post. Of course you have it right.
The focusser you have received has a rather limited 1 7/8" travel. I'd
get onto them at once since they have failed to supply the goods
advertised. You are short of 1 1/4" of travel (more than one third of
the travel advertised). Which might be important to you one day.

My apologies,

Chris.B

Post in haste, repent at leisure.