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| Canon HDgc Lens Series |
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| High Definition Lens to Support the Expanding HD Camera Market |
For 2/3 inch cameras :
KJ21ex7.6B IRSE
KJ16ex7.7B IRSE
KJ10ex4.5B IRSE
KJ20x8.5B KRS
KJ13x6B KRS
For 1/2 inch cameras :
KH21ex5.7 IRSE
KH16ex5.7 IRSE
KH10ex3.6 IRSE
KH20x6.4 KRS
KH13x4.5 KRS
For 1/3 inch cameras :
KT20x5B KRS
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Concept of the HDgc Series
Corresponding to the popularity of digital High Definition broadcasting and diversity of HDTV
equipment, Canon has added a new series to its HDTV lens line up, the HDgc series. The new
HDgc series supports the emergence of an important new generation of cost-effective HD
acquisition systems. Adopting the advantages created by Canon's unique technology, the new HDgc
lenses exhibit high MTF, high resolution and high contrast from the center of the image to its
extreme edges, meanwhile maintaining its compact size and weight.
Compared to the SDTV Lenses, the HDgc Series Lenses are...
• Specially designed to use optical elements that are effective in further minimizing chromatic aberrations, such as "Hi UD
Glass", "Aspherical Elements" and other special elements. These elements will decrease the flare that causes blurring of the
picture and enables the lens to keep a high MTF.
• Setting a higher standard for parts quality and are designed to improve the lens structure. The HDgc lens manufacturing process
has become tighter with reduced tolerance's to maintain a higher lens performance.
Quality of the HDgc Series
The HDgc Series lenses are based upon Canon's latest design concepts which support the new generation of cost-effective HD
acquisition systems. The HDgc lenses are designed to meet the specific bandwidth frequency (or the number of scanning lines)
of these new HD camera systems and at the same time to offer an excellent performance-cost optimization.
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SD |
HDgc |
| Test Freaunency of Broadcast Camera |
320 TV Lines / 4MHz |
up to 640 TV Lines / 8MHz |
up to 800TV Lines |
| Test Freaunency of Broadcast Lens |
24Lines / mm |
up to 48Lines / mm |
up to 74Lines / mm |
| Actual Canon Resolition of Broadcast Lens |
up to 75Lines / mm |
up to 100Lines / mm |
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