-34-
7. As you use your telescopemore and more, you will find
that you are seeing finer detail: observing through
a large-aperture telescope is an acquired skill.
Celestial observing will become increasingly rewarding
as your eye becomes better trained to the detection
of subtle nuances of resolution.
OPTIONAL ACCESSORIES AND SYSTEMS
The .Meade Models 2080 and 2120,as parts of a wide-ranging
telescope system, permit the addition ,of more than two dozen
auxiliary accessories, for use of the basic telescopes in
many varying observational and photographic situations.
EYEPIECES (l~" O.D.)
The standard Models 2080 and 2120 include two multi-coated
eyepieces of Modified Achromatic, 3-element, design: 25mm
(80X on the 2080; lOOX on the 2120) and 9mm (222X on the
2080; 278X on the 2120). Higher power (shorter focal length)
and lower power (longer focal length) eyepieces are available
to suit individual requirements. For example the MA 40mm
eyepiece yields a low (SOX on the 2080; 63X on the 2120)
power and wide field of view, ideal for the observation of
faint extended objects such as diffuse nebulae and spiral
galaxies. The Meade Research Grade Erfle 20mm is also ex-
cellent in this latter application and provides an extremely
wide-angle field at lOOX'on the 2080, l25X on the 2120.
Advanced observers will quickly become "spoiled" with the
use of the Research Grade Erfles, since their wide-angle
fields p~rmit comfortable "eye-relief," even at higher
powers, during long observing sessions. Under favorable
atmospheric conditions, higher eyepiece powers allow the
observation of finer lunar and planetary detail; i~ these
cases Orthoscopic eyepeices in the 4mm to 7mm focal length
range are probably the most advantageous. .
EYEPIECES (2" O.D.)
Used in conjunction with the 2" Diagonal Mirror (see below)
eyepieces of the oversize 2" O.D. barrel provide breath-
taking wide-field views of deep space objects such as
nebulae, galaxies, and 'star clusters. The Meade Research
Grade Erfle 32mm (2" O.D.) eyepiece yields a magnification
of 63X on the Model 2080 (78X on the Model 2120) with an
actual field of about 1°, or about 2 Moon-diameters.
BARLOW LENSES
The widely-used Meade Telenegative Amplifiers are custom-
To Next Page
Loading...
