Chapter 15 Performing Direct Printing206Connecting toPC, Printer, andNetwork15.3.4 Calculating the Magnification When PrintedPixel sizes of image pickup device on DS camera headsThe table below shows the pixel size (the maximum number of pixels stored) of image pickup device and theeffective area (area for the effective number of pixels stored) of each DS camera head.Pixel size (μm) Recorded pixel count Effective area (mm)DS camera head Width Height Width Height Width Height DiagonalDS-Fi2/Fi1/Fi1c 3.4 3.4 2560 1920 8.7 6.53 10.88DS-Vi1 4.4 4.4 1600 1200 7.04 5.28 8.8DS-Qi1Mc/Ri1 6.45 6.45 1280 1024 8.26 6.6 10.57Use the following formula for calculating the magnification of the subject on printing paper.• Magnification on printing paperOptical magnification (objective lens magnification x relay lens magnification)x Diagonal size of printing paperDiagonal size of effective area for image pickup deviceCalculation example: L-size paper (diagonal: 163 mm)DS Camera head Magnification of opticaldevice (example) Magnification of the subject on a printing paperDS-Fi2/Fi1/Fi1c Objective lens: 40×Relay lens: 0.7x 40 x 0.7 x 163 mm / 10.88 mm = 420DS-Vi1 Objective lens: 40×Relay lens: 0.55x 40 x 0.55 x 163 mm / 8.8 mm = 410DS-Qi1Mc/Ri1 Objective lens: 40×Relay lens: 0.7x 40 x 0.7 x 163 mm / 10.57 mm = 430
