di-GPS Basic
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di-GPS Products > di-GPS Basic


  • Low cost solution, provide basic GPS data to N-DSLR cameras. 
  • Simple Plug-And-Play, no switch & no Setup Required.
  • Ultra low power consumption, SiRF Low Power Single Chip (45mA typical).
  • Very compact size 50mm x 32mm x 13mm.
  • Mounted on the flash accessory shoe or attached to the camera strap.
  • 20-Channel GPS Receiver for fast acquisition and reacquisition.
  • 200,000 effective correlators for fast TTFF (Time To First Fix) and Extremely fast TTFF at low signal levels.
  • Very high sensitivity (Tracking Sensitivity: -159 dBm), provide superior positing information in environments, through urban canyons, and under dense foliage.
  • Built-in WAAS Demodulator.
  • NMEA 0183 data protocol.
  • Built-in backup battery to reserve system data for rapid satellite acquisition.
  • Built-in patch antenna, no external antenna required.
  • Direct connect to Nikon DSLR without MC-35.
  • Support Nikon D3*, D700*, D300*, D2XS, D2X, D2HS & D200, Fujifilm S5 Pro.

*Nikon added new GPS function to D3 and D300. The new function resolved the battery drain issue. The new option in the menu let the user to select the metering system to stay on or auto off when GPS data is received to reduce the power consummation.


Chipset Low Power Single Chip SiRF Star III
Frequency L1, 1575.42 MHz
C/A code 1.023 MHz chip rate
Channels 20 channel all-in-view tracking
Sensitivity -159 dBm

Accuracy (Open Sky)
Position 10 meters, 2D RMS
5 meters, 2D RMS, WAAS enabled
Velocity 0.1 m/s
Time 1us synchronized to GPS time


Acquisition Time (Open sky, stationary requirements)
Reacquisition 0.1 sec., average
Hot start 1 sec., average
Warm start 38 sec., average
Cold start 42 sec., average

Dynamic Conditions
Altitude 18,000 meters (60,000 feet) max
Velocity 515 meters /second (1000 knots) max
Acceleration Less than 4g
Jerk 20m/sec max

+5V Supply from DSLR Camera
Power consumption less than 45mA

Direct connect to N-DSLR via 10pin connector
Baud rate 4,800 bps
Output message NMEA 0183

10 pin connector direct connect to N-DSLR

Physical Characteristics
Dimension 50mm*32mm*13mm
Weight: 30g
Operating Temperature -10  to +45 Degrees Celsius
Operating Humidity: 5% to 85%, No Condensing

*Specifications are subject to change without any notice.

di-GPS support Nikon D3, D300, D2XS, D2X, D2HS & D200, Fujifilm S5 Pro.

di-GPS is a registered trademark or a trademark of Dawn Technology Limited in the Hong Kong and/or other countries.
Nikon D2HS, D2X, D2XS, D3, D200, D300 and D700 are registered trademark or a trademark of NIKON CORPORATION in the United States and/or other countries.
Fujifilm and S5Pro are registered trademark or a trademark of FUJIFILM CORPORATION in the United States and/or other countries.
Canon EOS 40D, EOS 50D, EOS 5D Mark II and EOS-1D/Ds MarkIII are registered trademark or a trademark of CANON INC. in the United States and/or other countries.
Products and brand names are trademarks or registered trademarks of their respective companies.
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