Lens Construction9 elements in 8 groupsMinimum apertureF16Filter sizeÏ62mmAngle of view (SD1)50.7°Minimum focusing distance30ã / 11.8inDimensions (Diameter x Length)Ï74.2mm x 63.3mm / 2.9in x 2.5in Number of diaphragm blades9 (Rounded diaphragm)Maximum magnification ratio1ï¼6.8
Special features:
So small, but incredibly strong. The USB 2.0 Micro Adapter with Bluetooth 4.0 technology allows a data link in less than 5 milliseconds between your PC or notebook and other Bluetooth-enabled devices and keeps them up to a distance of 100 meters. The BT0015 allows a connection with multiple devices and is, because of the size, a perfect companion for traveling. The battery life can be indreased due to low power consumption of Bluetooth 4.0 technology of laptop mice and headsets.