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Canon HJ21eX7.5BIASD 2/3" HD Broadcast Lens |
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HD 7.5-158mm E.F.P type broadcast zoom lens, servo zoom/focus, XS digital drive, 2X ext, macro
The HJ21ex7.5B is a production portable lens having the widest field of view among the standard telephoto series of lenses. It is a replacement for the highly popular HJ21ex7.8B lens. It a strategic member of the family of seven HD portable EFP lenses offered by Canon that collectively offers an unusually broad range of creative options.
This particular lens was optimized for the highest EFP performance. Its relatively large input section includes innovative optical compensation to reduce focus breathing to an extremely low level. It is intended for producers and broadcasters having as their foremost priority a long focal length capability, wide-angle field of view, and exceptional optical performance. This has been achieved in a modest 5.65 lbs overall package. The optional flexibility of Canon’s Crossover aspect ratio switching system makes it a superb performer for both 16:9 widescreen and standard 4:3 image formats. |
HJ21eX7.5BIASD
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Details
Specifications
| IMAGE COMPOSITION HJ21ex 7.5B Series |
| Object Image Format |
2/3 Inch 16:9 Aspect Ratio |
Object Image Size (Presented
to Camera Imagers) |
9.59 mm (H) x 5.39 mm (V) |
| Zoom Ratio |
21 X |
| Focal Length Range |
7.5------------158mm |
| with Extender |
15-------------316mm |
| Angular Field of View : |
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| At 7.5mm |
65.2° (H) x 39.6° (V) |
| At 158mm |
3.5° (H) x 2.0° (V) |
| With Extender : |
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| At 15mm |
35.5° (H) x 20.4° (V) |
| At 316mm |
1.7° (H) x 1.0° (V) |
| SCENE COMPOSITION HJ21ex 7.5B Series |
Minimum Object Distance
(MOD) (From Front of Lens) |
0.85 Meter (10mm with Macro) |
Minimum Object Distance
(MOD) (From Camera Image Plane) |
1.16 Meter |
Scene Object
Dimensions at MOD |
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| At 7.5mm |
120.4 cm x 67.7 cm |
| At 158mm |
5.6 cm x 3.2 cm |
| With Extender |
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| At 15mm |
60.2 cm x 33.9 cm |
| At 316mm |
2.8 cm x 1.6 cm |
| OPTICAL BRIGHTNESS HJ21ex 7.5B Series |
| Maximum Relative Aperture |
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| (F-Number) |
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| At 7.5mm-------116mm |
1 : 1.9 |
| At 158mm (Ramping Characteristic) |
1 : 2.6 |
| with Extender |
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| At 15mm------232mm |
1 : 3.8 |
| At 316mm (Ramping Characteristic) |
1 : 5.2 |
| PHYSICAL ATTRIBUTES HJ21ex 7.5B Series |
| Size |
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| Width |
179.9mm |
7.1in |
| Height |
122.3mm |
4.8in |
| Length |
260.1mm |
10.2in |
| Weight |
5.81lbs 2.63kg |
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