Bausch & Lomb DISCOVERER 78-1600 사용자 설명서
CAMERAS REQUIRING EXTERNAL METERING DEVISES
Set the light meter’s ISO index to the rating of the film being
used. Select the magnification and not f/stop as explained
above. If, as in many cases the smallest f/stop shown on your
light meter is f/45 and you need a reading for f/56 or f/64, refer
to the Light Extension Scale or increase the ISO setting as
previously explained.
Set the light meter’s ISO index to the rating of the film being
used. Select the magnification and not f/stop as explained
above. If, as in many cases the smallest f/stop shown on your
light meter is f/45 and you need a reading for f/56 or f/64, refer
to the Light Extension Scale or increase the ISO setting as
previously explained.
R E M I N D E R
After using the Discoverer as a telephoto lens, the Te l e p h o t o
Adjustment Control must be turned all the way counter-
clockwise to resume use as a spotting scope.
After using the Discoverer as a telephoto lens, the Te l e p h o t o
Adjustment Control must be turned all the way counter-
clockwise to resume use as a spotting scope.
QUESTIONS & A N S W E R S
Q :
Q :
Can I use lens filters on my Discoverer?
A :
Yes, any standard 67mm diameter threaded filter will
screw on to the objective lens exactly as does the lens cap.
In long range telephotography, ground haze can diffuse the
light between the camera and the subject resulting in a hazy
appearing picture, lacking in contrast
In long range telephotography, ground haze can diffuse the
light between the camera and the subject resulting in a hazy
appearing picture, lacking in contrast
Q :
Will heat affect the image?
A :
Yes, warm temperature conditions can cause the image
to quiver or “dance” resulting in a blurred effect. This is
not due to a defective scope, but rather the effects of
heat mirage.
not due to a defective scope, but rather the effects of
heat mirage.
Q :
Can I take pictures of the moon?
A :
Yes, since the moon is illuminated by the sun, you can
use the exposures shown in the instructions under “How To
Determine Shutter Speed.” It is important to realize that
exposure time increases as the moon wanes, with 10 times
normal exposure necessary in its crescent stage.
Q :
Determine Shutter Speed.” It is important to realize that
exposure time increases as the moon wanes, with 10 times
normal exposure necessary in its crescent stage.
Q :
Is the Discoverer waterproof?
A :
No, it is “shower tight”. If the scope has been exposed
to moisture of any kind, wipe it dry as soon as possible.
C A U T I O N : Do no attempt to disassemble or repair any
part of the Discoverer yourself. In doing so, you will
invalidate your warranty. Special apparatus and
considerable skill and experience is required to make
even the simplest internal adjustment.
part of the Discoverer yourself. In doing so, you will
invalidate your warranty. Special apparatus and
considerable skill and experience is required to make
even the simplest internal adjustment.
A C C E S S O R I E S
Bushnell offers numerous types of accessories, tripods and a
car window mount to enhance your enjoyment of the
Discoverer Spotting Scope. For more information, visit our
website at www. b u s h n e l l . c o m
Bushnell offers numerous types of accessories, tripods and a
car window mount to enhance your enjoyment of the
Discoverer Spotting Scope. For more information, visit our
website at www. b u s h n e l l . c o m
WA R R A N T Y / REPA I R
Power
Approximate Focal Length
Approximate
Approximate
Or Telephoto Effect
Effective f/Stop
Shutter Speeds
15x
1000mm
f/16
1/200
1/500
20x
1400mm
f/22
1/125
1/200
25x
1700mm
f/28
1/60
1/125
30x
2000mm
f/32
1/60
1/125
40x
2700mm
f/45
1/30
1/60
50x
3400mm
f/56
1/15
1/30
60x
4000mm
f/64
1/15
1/30
NOTE: Using any other f/stop other than f/16 may produce a dim image.
Telephoto A c c e s s o r i e s
2 2 - 3 0 3 0
2 2 - 3 0 3 0
Discoverer Camera Mount
2 0 - 0 0 0 3
Fits All AF & Non-AF Nikon Cameras
2 0 - 0 0 0 4
Fits All Minolta MD Mount Cameras
2 0 - 0 0 0 5
Fits All Canon FD Mount Cameras
2 0 - 0 0 0 7
Fits All AF & Non-AF Pentax-K Mount Cameras
2 0 - 0 0 1 0
Fits All Minolta Maxxum Cameras
2 0 - 0 0 5 1
Fits All Canon EOS Cameras
LIFETIME LIMITED WARRANTY
Your Bausch & Lomb
®
spotting scope is warranted to be free of defects in
materials and workmanship for the lifetime of the original owner. The
Lifetime Limited Warranty is an expression of our confidence in the materials
and mechanical workmanship of our products and is your assurance of a
lifetime of dependable service. In the event of a defect under this warranty,
we will, at our option, repair or replace the product, provided that you return
the product postage prepaid. This warranty does not cover damages caused
by misuse or improper handling, installation or maintenance of the product.
Lifetime Limited Warranty is an expression of our confidence in the materials
and mechanical workmanship of our products and is your assurance of a
lifetime of dependable service. In the event of a defect under this warranty,
we will, at our option, repair or replace the product, provided that you return
the product postage prepaid. This warranty does not cover damages caused
by misuse or improper handling, installation or maintenance of the product.
Any return made under this warranty
must be accompanied by the items listed below:
1)A check in the amount of $10.00 to cover the cost of handling
2)Name and address for product return
3)An explanation of the defect
4)Product should be well packed in a sturdy outside shipping carton
2)Name and address for product return
3)An explanation of the defect
4)Product should be well packed in a sturdy outside shipping carton
to prevent damage in transit and return postage prepaid to the
address listed below:
address listed below:
IN U.S.A. Send To:
Bushnell Performance Optics
8500 Marshall Drive
Lenexa, Kansas 66214
Bushnell Performance Optics
8500 Marshall Drive
Lenexa, Kansas 66214
For products purchased outside the United States and Canada please contact
your local dealer for applicable warranty information. This warranty gives
you specific legal rights. You may have other rights which vary from country
to country.
your local dealer for applicable warranty information. This warranty gives
you specific legal rights. You may have other rights which vary from country
to country.
Bausch & Lomb
®
is a registered trademark of and used under license from
Bausch & Lomb Incorporated.
©2001 Bushnell Performance Optics
IN CANADA Send To:
Bushnell Performance Optics
25A East Pearce Street, Unit 1
Richmond Hill, Ontario L4B 2M9
Bushnell Performance Optics
25A East Pearce Street, Unit 1
Richmond Hill, Ontario L4B 2M9
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