Merlin66
18-06-2013, 01:14 PM
Gordon Walker's "Astronomical Observations -An Optical perspective", Cambridge, soft cover, p347.
Covers all the topics the advanced amateur is likely to need know in observing/ imaging...
Good clean copy.
Asking $25 +P&P
Covers all the topics the advanced amateur is likely to need know in observing/ imaging...
Good clean copy.
Asking $25 +P&P