THE FINEST TOOLS
Table of Contents
WHAT IS “FULL-FRAME”?
III. WHAT ARE THE ADVANTAGES OF FULL-FRAME SENSORS?
Image quality considerations
Focal length conversion factors
Full-frame vs. APS-C, some other considerations
THE ECONOMICS OF IMAGE SENSORS
Wafers and sensors
Power consumption issues
CANON’S UNIQUE R&D SYNERGY
Other differences between CMOS and CCD image sensors
Summing up for now
VII. SOME HISTORY
Getting to here
Steppers and scanners
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Canon currently makes five extraordinary EOS DSLR (Digital Single Lens Reflex)
cameras of which two, the EOS-1Ds Mark II and the EOS 5D, incorporate full-frame
CMOS (Complementary Metal Oxide Semiconductor) image sensors. Today, these
cameras are unique in format and unequalled in performance. This paper will discuss
what is meant by “full-frame sensor,” why full-frame sensors are the finest all-around
tools of digital photography, why CMOS is superior to CCD (Charge-Coupled Device)
for DSLR cameras, and how it came to pass that the evolution of a host of associated
technologies – and some courageous and insightful business decisions – positioned
Canon to stand alone as the only manufacturer of 35mm format digital cameras with
full-frame image sensors today (as of August 1st, 2006).
EOS-1Ds Mark II
Early in the 20th century, in the search for a more portable camera format, 35mm
movie film was adapted for use in still cameras. At first, there was no standard
frame size, but eventually, the industry settled on 36 x 24mm. Great rangefinder
systems were developed by Leitz