Speers-Waler WA's (preliminary report #2)
Temporary setback. My worst fear mentioned in my first report came
true. Not a single one of the Speers-Waler WA's will reach focus in my
very low profile 2" Helical Crayford focuser, which has only ~1.25" of
total travel. They all need a lot of in-travel of the focuser. Roughly
3/4" more in-travel is needed than I have available. My choices as I see
them now are to cut off about an inch from each truss tube, or to buy a
focuser with more travel. Any suggestions? How is the Moonlight Crayford
for overall travel? As I was already setting some of my eyepieces out
from the focuser shoulder due to out-travel needs, a focuser of ~3"
overall travel is needed to assure that all of my eyepieces will reach
focus. If I lop off an inch from my tubes, then I'll need an extension
tube for many of my existing eyepieces to reach focus.
Lawrence Sayre
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My philosophy, in essence, is the concept of man as
a moral being, with his own happiness as the moral
purpose of his life, with productive achievement as
his noblest activity, and reason as his only absolute.
Ayn Rand (in the appendix to 'Atlas Shrugged')
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