Chapter 15 Performing Direct Printing
206
Connecting to
PC, Printer, and
Network
15.3.4
Calculating the Magnification When Printed
Pixel sizes of image pickup device on DS camera heads
The table below shows the pixel size (the maximum number of pixels stored) of image pickup device and the
effective 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 Diagonal
DS-Fi2/Fi1/Fi1c 3.4 3.4 2560 1920 8.7 6.53 10.88
DS-Vi1 4.4 4.4 1600 1200 7.04 5.28 8.8
DS-Qi1Mc/Ri1 6.45 6.45 1280 1024 8.26 6.6 10.57
Use the following formula for calculating the magnification of the subject on printing paper.
• Magnification on printing paper
Optical magnification (objective lens magnification x relay lens magnification)
x Diagonal size of printing paper
Diagonal size of effective area for image pickup device
Calculation example: L-size paper (diagonal: 163 mm)
DS Camera head
Magnification of optical
device (example)
Magnification of the subject on a printing paper
DS-Fi2/Fi1/Fi1c
Objective lens: 40×
Relay lens: 0.7x
40 x 0.7 x 163 mm / 10.88 mm = 420
DS-Vi1
Objective lens: 40×
Relay lens: 0.55x
40 x 0.55 x 163 mm / 8.8 mm = 410
DS-Qi1Mc/Ri1
Objective lens: 40×
Relay lens: 0.7x
40 x 0.7 x 163 mm / 10.57 mm = 430
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