Main Features:
- Compact HDTV standard lens
- Digital Drive Unit
- X-Element & Power Optical System
- Equipped with Canon’s original Rotary Encoder Device.
- Shortest M.O.D. among the counterparts
Canon has always developed new technology with four basic philosophies, “High Quality of Picture”, “Ease of Operation”, “High Specification” and “Minimize Environmental Impact”. Canon’s HDTV lenses are, so to speak, a compilation of our basic philosophies. Canon is the only manufacturer to offer a complete line of HDTV lenses to match our customers requirements.
Overall Comparisson Between HDTV and SDTV
Whereas one frame of the conventional SDTV (ie NTSC) system consists of 480 scanning lines, the number of scanning lines is more than 1.5 times that for the HDTV system. Furthermore the density of the scanning lines are even higher because the HDTV system has an aspect ratio of 16:9, which is wider and shorter in height than that of the normal SDTV (4:3 aspect ratio) system. The spatial frequency required for the HDTV system is about twice that required for the NTSC system. Overall, the resolution of the HDTV system is about twice that of the NTSC system and therefore, the lens requires much higher performance than the conventional lenses.