Amazing 50X Motorized Zoom Lens
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Sofisticated Tokina's designing and manufacturing technologies are
incorporated with compact and light weight body.
Superapochromat
using the SD glass
Employment of the internal
cam system
Remote extender
Tokina employed the extender system
which has been used for TV broadcast
zoom lenses in contrast to conventional
extenders attached to the rear end of a
lens, this extender has been incorpora
ted into its optical system itself from the
designing stage to ensure that an opti
mal extender most appropriate for the
lens should be developed. Moreover,
use of a motorized system for moving of
the extender has allowed it to be remote
ly controlled.
Expensive super low dispersion glass
which has been used for TV Broadcast
lenses is used in the frontal part of the
lens to eliminate in an ideal manner the
secondary aberration occurring at the
telephoto side.
The system allows the cam grooves to
be cut by an easier gradient. This will
permit at the same time the strength of
the cam barrel to be increased relative to
that of the conventional system. An
increase of precision in the direction of
the optical axis has made it possible
for an ideal optical performance to be
achieved at a value almost identical with
that of the design. With a decrease of
the load to the zooming and focusing
motors, the overall durability has signifi
cantly enhanced.
SD(Super Low Dispersion)GLASS
NORMAL GLASS
secondary spectrum
SD GLASS
secondary spectrum
Internal cam
Normal cam
Triplet compensator
Tokina has solved the problem of a
deterioration of the center performance
at around halfway of the zooming range
with this compensator. The deterioration
is a characteristic commonly observed in
telescopic lenses with a high magnifying
power. A result of the Tokina's advanced
optical technologies, the compensator
prevents the deterioration from occurring
and achieves a high resolution over the
entire zooming range.
High resolution suitable for
3CCD cameras
The progress in the use of 3CCD cam
eras is remarkable in recent years. Pro
vided with a high resolving power, the
lens will allow you to fully utilize the cam
era's performance to obtain images in
bright colors with high resolution.
MTF (Modulation Transfer Function)
100
TM50Z1040
50
Saggital(f=10mm)
(10-500mm 1:4.0)
Meridional(f=10mm)
Saggital(f=250mm)
Meridional(f=250mm)
Saggital(f=500mm)
Meridional(f=500mm)
0
0
2
4.2
Image Height(mm)
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Dimensions
17.526
124
300
46
134
95 P=1
ALC/LEVEL Adjust
C Mount
Tripod Connection CU 1/4"
Lens Hood
Unit: mm
General Specifications
Model No.
Format
TM50Z1040AI (AI-2)
1/2 inch
Focal Length
Zoom Ratio
Iris Range
Angle field of View
(H x V)
Filter Screw Size
Dimensions
Weight
10-500mm/20-1000mm(with Extender)
50x
1
F4.0-125(360) /F8.0-250(720) 1(with Extender)
*
*
35.5° x 27.0°(10mm) 18.2° x 13.7°(20mm)
0.7° x 0.6°(500mm) 0.4° x 0.3°(1000mm)
M95 P=1mm
124mm x 106mm x 300mm
3.2Kg
Mount
Operation
C Mount F.B=17.526mm(in air)
Continuously Adjustment(Peak-Avarage)
DC8 ~ 16V(Max.40mA)
V or VS Signal
Metering Method
Input Voltage
Input Signal
Iris
(Auto)
Iris Accuracy
15% at Image Signal
0.5 ~ 1.0Vp-p at Video
Approx. 4sec.
High Impedance
DC12V(Max.120mA)
Approx. 6Sec.
Sensitivity Adjustment
Respond Speed
Input Impedance
Control Voltage
Mortorization Speed
Potentio Meter
Zoom
(Motorized)
5K
Control Voltage
Motorization Speed
Potentio Meter
DC12V(Max.120mA)
Approx. 7Sec.
Focus
(Motorized)
5K
Control Voltage
Motorization Speed
DC12V(Max. 50mA)
2Sec.
Extender
(Motorized)
Operating Temperature
-10 ~ +50°C
1ND360 is available
Specifications are subject to change without notice.
*
Distributed by
Security Products Division
346-5 Chikumazawa, Miyoshi-machi,
Iruma-gun, SAITAMA 354-0043, Japan
TEL : +81-492-59-9950
FAX : +81-492-59-9951
E-mail : [email protected]
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