My amateur telescope making page
The "Deep Space Scope" Design
Home | Astronomy | DS-3 | NEWT designThe program NEWTWIN, by Dale A. Keller, was used in the design
of
DS-3. This program was mainly used to determine the size of
the
secondary ring and the secondary mirror. Sorry about the size
of
the pictures - I wanted to keep them original screen size, which makes
them easy to read.
Initial setup specs were as follows:
Performance specs for DS-3:
The NEWT main page shows as follows. Notice that we
are not
vignetting the 75% ray, and that a 2.05" secondary mirror is "big
enough".
A closer view of the focuser looks like this:
