Canon BU-51H Cep Kılavuzu - Sayfa 16

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Canon BU-51H Cep Kılavuzu
HDTV Optical Accessories
Tele-Side Converter
Focal length is shifted to the telephoto side by a
•
T15 HD
factor of 1.5x
F No. of the original lens is not affected
•
Only the telephoto side of the lens can be used,
•
the picture corners are eclipsed at wide angle
Adapter 85 II
The minimum object distance becomes 2.25 times
•
98 II
that of the original lens.
Wide Converter
W80 HD
Focal length becomes wider by a factor of 0.8X that
•
of the original lens with W80 HD
•
F No. of the original lens is not affected
Adapter 85 II
98 II
Wide Attachment
WA75 HD
•
The zoom lens becomes a wider fixed focal length
lens with the wide attachment
•
The focal length is widened by a factor of 0.75x
that of the original lens
Adapter 85 II
•
Focus is adjusted by use of the macro lever
98 II
Fish-Eye Attachment
Example: HJ17ex7.6B with fish-eye attachment
FEA HD
Focal Length
Zooming
Adapter 85 II
Focus adjustment
98 II
30
4.6mm, fixed
focal length
Not possible
By Macro mechanism
SDTV Optical Accessories
Tele-Side Converter
Combination
J17ex7.7B + T15-II/85II
T15-II
J22ex7.6B + T15-II/98II
YJ20x8.5B + T15-II/85II
Adapter 85 II
98 II
Wide Converter
Combination
J17ex7.7B + W80-IIIB/85II 7.7 to 131mm 6.2 to 104.8mm
J22ex7.6B + W80-IIIB /98II 7.6 to 168mm 6.0 to 132mm
W80-III B
YJ20x8.5B + W80Y-85
*W80Y-85
Focal Length
Minimum Object
Distance
Adapter 85 II
Zooming
98 II
F-number
*W80Y-85 is exclusively for 20X and 19X series and does not require an adapter.
Wide Attachment
WA75-II
Focal Lens
Close-Up
distance
Zooming
Adapter 85 II
Focus
98 II
adjustment
Fish-Eye Attachment
FEA-III B
Focal Length
Zooming
Focus adjustment
Adapter 85 II
98 II
M.O.D.
Eclipse Point
1.35m
f : 60mm
1.8m
f : 60mm
2.00m
f : 80mm
Master Lens
With Wide
Converter Attached
9 to 171mm
7.2 to 136.8mm
0.8X
(Magnification) 2 X
(Minimum object
distance of master lens)
Usual operation
Same as usual
Changes caused
Example:
by attachment
when used w/
J17ex7.7B lens
Fixed Focal Length
Fixed focal
(magnification) X
length
(wide angle focal length)
Approx. 5.8mm
Close-Up distance of
30mm
Macro feature
Not possible
Not Possible
By Macro mechanism
By Macro
F.B. adjustment
mechanism
Example: J17ex7.7B with fish-eye attachment
4.6mm, fixed
focal length
Not possible
By Macro mechanism
31