Chapter 2 Peripheral Equipment
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(2) IEEE1394b cable
IEEE1394b cable is used to connect the DS-U3 to the PC. We recommend a cable provided with
the IEEE1394b FireWire PCIe Card.
(3) C mount lens
The C mount lens is required to photograph subjects other than photomicrographs. Any lens that
meets the following conditions may be used:
• Protrudes no more than 10 mm from the mount surface into the camera.
Less than 5 mm for DS-Ri1.
• The image circle of the DS-Vi1 is 1/1.8”, and that of the DS-Fi1, DS-Fi1c, DS-Qi1Mc or
DS-Ri1 is 2/3”. Use a lens for 1” or 2/3”.
• When using diaphragm settings brighter than F2.8, you may observe slight light fall off
around the periphery.
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