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© 2 0 0 3 C e l e s t r o n
The Nautica
®
Series from Celestron features waterproof models for marine use. Choose from three feature-rich
models - whether you want center focus, traditional individual focus, or a model with a compass and reticle. All are
rubber covered to protect against rough handling. All provide maximum optical performance with BAK-4 prisms and
multi-coatings for sharp images with high contrast and resolution. Each model has a large, 50mm objective lens to
offer maximum image brightness even in low light conditions, like dusk and dawn.
F E A T U R E S
S P E C I F I C A T I O N S
Model 71189
7 x 50 IF/RC
Model 71187
7 x 50 CF
Model
71187
71188
71189
Size
7 x 50 CF
7 x 50 IF
7 x 50 IF/RC
Design
Porro
Porro
Porro
Prisms
BAK-4
BAK-4
BAK-4
Coating
Multi-Coated
Multi-Coated
Multi-Coated
Weatherproof
Waterproof
Waterproof
Waterproof
Angular Field of View (FOV°)
7
7
7
Linear FOV (ft @ 1000 yd)
367
367
367
Exit Pupil (mm)
7.1
7.1
7.1
Eye Relief (mm)
24
26
26
Near Focus (ft)
25
18
18
Weight (oz)
40
35
38
The Nautica Model 71189
features a rangefinder scale
with backlit compass
Model 71188
7 x 50 IF
7 x 50 CF Center Focus
•
Smooth center focus wheel
•
Easy-to-grip, large objective diopter ring
for smooth and more precise focusing
•
Attached objective caps, so they won’t
be lost at sea
•
Completely waterproof - dry nitrogen
charged and sealed with internal O-rings
to prevent internal fogging - unaffected
by climate and temperature changes
•
Water resistant, Nylon carrying case
•
Tripod adapter fitting for tripod mounting
7 x 50 IF/RC Reticle/Compass
•
Backlit illuminated liquid dampened
magnetic compass - excellent
navigational tool for land or sea
•
Horizontal and vertical etched reticle to
help determine relative size of objects
•
Rangefinding dial calculates actual
object distance or size
•
Completely waterproof - dry nitrogen
charged and sealed with internal O-rings
to prevent internal fogging - unaffected
by climate and temperature changes
•
Individual eyepiece focus with diopter
scale for quick and accurate focusing
•
Excellent depth of field for minimal
focus adjustments
•
Nautical style padded canvas case
and straps
•
Attached objective caps, so they won’t
be lost at sea
•
Tripod adapter fitting for tripod mounting
7 x 50 IF Independent Focus
•
Completely waterproof - dry nitrogen
charged and sealed with internal O-rings
to prevent internal fogging - unaffected
by climate and temperature changes
•
Individual eyepiece focus with diopter
scale for quick and accurate focusing
•
Excellent depth of field for minimal
focus adjustments
•
Nautical style padded canvas case
and straps
•
Attached objective caps, so they won’t
be lost at sea
•
Tripod adapter fitting for tripod mounting
