Dawn Technology Limited (di-GPS) - di-GPS M3L-S9 - Rectangular 10pin connector - Built-in data logger - 8MB flash memory - For Nikon D90 - USD150 (HKD1180) | Facebook
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Review of Dawn Technology di-GPS Eco ProF for Nikon professional cameras | Nikonites - Nikon User Community
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Amazon.com : GPS Receiver Compatible with Nikon, Micnova GPS-N Plus DSLR Camera GPS Unit Navigation Geotagging for Nikon D800 D3200 D3300 D90 D7100 D5200 D4 D600 D5100 : Electronics
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