Canon EOS 1Ds Mark III White Paper

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Canon EOS 1Ds Mark III White Paper Manual pdf 11 page image

IV. DISCUSSION OF NEW AND IMPROVED FEATURES 11New 21.1 Megapixel, FullFrame CMOS SensorThe 35mm full-frame CMOS sensor of the EOS-1Ds Mark III has been developed andmanufactured by Canon. Its 6.4μm pixels take advantage of a host of Canon R&Dadvances to achieve its speed, resolution and image quality. The following featuresmake the EOS-1Ds Mark III the highest performing digital AF SLR camera:• 35mm full-frame digital AF SLR with the world’shighest resolution, approximately 21.1megapixels*• Wide ISO speed range (ISO 100- 1600, L: 50,H: 3200)• Low noise (same level as EOS-1Ds Mark II)• High-speed signal reading (approximately 5 fps)• Low power consumption• Live View Function*For 24x36mm format as of August 20, 2007.Although the pixel size is about the same as that of the EOS 30D, the ISO speed range isthe same as that of the EOS-1Ds Mark II.By optimizing the gap between the on-chip microlenses, reducing the height from thephotodiode to the microlens, and improving the fill factor (photo diode area divided bypixel size) by applying the micro-rule that improves the performance of the exposuredevice, light-gathering efficiency has been improved.IV. DISCUSSION OF NEW ANDIMPROVED FEATURES36mm24mmEOS-1Ds Mark III8.2Pixel size [μm square] ISO speed rangeEOS 5D100 - 1600 H 320050 L100 - 1600 H 320050 LEOS-1Ds Mark II 100 - 1600 H 320050 L7.26.4EOS-1Ds Mark II(7.2 x 7.2 μm)EOS-1Ds Mark III(6.4 x 6.4 μm)Photo diode areaPixel SizeEOS-1Ds Mark II (7.2 x 7.2 μm)EOS-1Ds Mark III (6.4 x 6.4 μm)Photo diodeGap between microlensesPhoto diode area Pixel pitchPixel SizeCMOS Sensor (Actual Size)Opening Ratio (Conceptual Diagram) Microlens Comparison (Conceptual Diagram)