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Media in the Cloud: Ontology Guide

Lens Considerations for 4K Digital Cinematography and UHD Television Production

4K UHD was hugely visible at this year’s CES and NAB Conventions. Associated technologies for production, postproduction, workflows and infrastructures are rapidly advancing on a global basis. 4K was born in the realm of digital cinematography and in that context has been largely based upon the Super 35mm (S35mm) image format size. 4K digital camera developments have become prolific. 

Allied development in 4K S35mm zoom and prime lenses continue to grow apace. Size and weight consideration constrain the focal ranges available – but that is a compromise long accepted in the world of digital motion imaging. An increasing number of television program genres have adopted the cinematic imagery offered by this larger image format size.

But the more recent growing interest in 4K UHD live television production has spawned a brisk new movement in lens developments based upon the long-established smaller 2/3-inch image format size. Here the central drive is the desire to preserve both the very long zoom field lenses and the accompanying portable lenses that are central to outside current HDTV broadcast coverage of sporting and other major events.

Please join special guest speaker Larry Thorpe, Senior Fellow, Imaging Technologies & Communications Group, Canon, as he reviews the optical sciences underlying high performance zoom and prime lenses for contemporary 4K S35mm digital motion imaging cameras – for both cinematography and television production. Important operational requirements will be reviewed. The separate imperatives for 2/3-inch long zoom and portable lenses will also be outlined.


Guest Speaker: Larry Thorpe, Canon

L. Thorpe is Senior Fellow, Professional Engineering & Solutions within the Imaging Technologies & Communications Group of Canon USA Inc.

Mr. Thorpe was with the Sony Broadcast Company from 1983 to 2003.

Mr. Thorpe worked for RCA’s Broadcast Division from 1966 to 1982, where he developed a range of color television cameras and telecine products. 

From 1961 to 1966, Mr. Thorpe worked in the Designs Dept. of the BBC in London, England, where he participated in the development of a range of color television studio products.

Mr. Thorpe is an IEE Graduate (1961) of the College of Technology in Dublin, Ireland and received his Chartered Engineer (C. Eng.) and MIEE distinction in 1965 from the Institute of Electrical Engineers in London, England.