You want to geotag your images, you want to do it in-camera, and you don’t know which unit to choose. If you shoot Nikon, you can choose the Nikon GP-1 ($210+), the di-GPS Pro ($258), the di-GPS mini ($138), the Wolverine ($129), the Blue2CAN bluetooth adapter ($275), the Geomet’r ($159) and the Promote GPS ($149), among others.
I was tempted to go with either the di-GPS Pro for the battery, or the GP-1 because it’s Nikon. I ended up with the Promote GPS. It’s simple and inexpensive, and it acquired its signal very quickly. Bigger, fancier units may have more features but this unit is simple and effective.
