|
|
Canon KJ16ex7.7BKRSE 2/3" HD Professional Lens |
|
HD 7.5-123mm Pro Video Lens, servo zoom/manual focus, digital drive, macro.
The world’s major professional video manufacturers have introduced a diverse range of low-cost tapeless HD camcorders and tape-based HDV professional camcorders. Various design strategies have been adopted by the manufacturers to decisively drive down the costs of these HD acquisition systems. They include different image format sizes, subsampled imagers, and contemporary digital recording techniques. In support of these products Canon designed an entire family of cost-effective HD ENG/EFP lenses that seek to match both the performance and the costs of these diverse and still-emerging HD acquisition systems. To distinguish this level of lens within the overall Canon HD optical hierarchy they are identified by the logo HDgc – to clearly differentiate them from the already established high performance HDxs line of 2/3-inch portable lenses.
These acquisition systems have been developed in response to the broadcast industry’s rapidly growing interest in transitioning to HDTV Newsgathering, HD reality shows, and other lower-budget HD productions. They also directly address the increasing adoption of HD digital origination by the growing independent filmmaking market sector. In addition, they are anticipated to foster growing interest in HD within the broad B2B market sectors. To support this extensive flexibility in HD acquisition systems, the new HDgc family includes 2/3-inch, 1/2-inch, and 1/3-inch lenses.
The KJ16ex7.7B IRSE is a portable HDTV production lens within the 2/3-inch image format sector of the HDgc family. This particular lens is intended for users whose foremost priority is a lens that delivers a generous range of focal lengths combined with a wide field of view in a lightweight mobile package. It was specifically designed for the new cost-effective 2/3-inch acquisition systems. It is an important member of the emerging HDgc family in terms of facilitating HD imaging with equivalent operational capabilities as the established 2/3-inch SDTV systems. |
KJ16ex7.7BKRSE
|
Details
Specifications
| IMAGE COMPOSITION KJ16ex7.7B IRSE |
| 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 |
16x |
Focal Length Range
with Extender |
7.7mm
15.4 |
124mm
248mm |
| Angular Field of View : |
|
| At 7.7mm |
63.9° (H) x 38.6° (V) |
| At 124mm |
4.4° (H) x 2.5° (V) |
| Angular Field of View : |
|
| At 15.4mm |
34.6° (H) x 19.9° (V) |
| At 248mm |
2.2° (H) x 1.2° (V) |
| SCENE COMPOSITION KJ16ex7.7B IRSE |
Minimum Object
Distance (MOD)
(From Front of Lens) |
0.6 Meter (10mm with Macro) |
Scene Object
Dimensions at MOD |
|
| at 7.7mm |
68.5 cm x 38.5 cm |
| at 124mm |
4.4 cm x 2.5 cm |
| with Extender |
|
| at 15.4 mm |
34.3 cm x 19.3 cm |
| at 248 mm |
2.2 cm x 1.2 cm |
| OPTICAL BRIGHTNESS KJ16ex7.7B IRSE |
| Maximum Relative Aperture |
|
| (F-Number) |
|
| at 7.7mm------97mm |
1:1.8 |
| at 124mm (Ramping Characteristic) |
1:2.3 |
| with Extender |
|
| at 15.4mm ------194mm |
1:3.6 |
| at 248mm (Ramping Characterstic) |
1:4.6 |
| PHYSICAL ATTRIBUTES KJ16ex7.7B IRSE |
| Size |
|
| Width |
163.9mm |
6.5in |
| Height |
106.3mm |
4.2in |
| Length |
196.7mm |
7.7in |
| Weight |
3.24lbs 1.47kg |
|
|
|
|
