Just took quite a few pictures with GP-1 attached on the D3, and got 2 major question.
The first one is the battery usage. I took around 300 pictures and used 40% of the battery. Is that normal? I took most of the picture outside, but there are some indoors, which is impossible to get the GPS info anyway, but I leave the GP-1 flashing red. (The GP-1 LED is off if the metering is taking a rest as well, once you half press the shuttle release, it will come back if, you are outside)
The second one is the accuracy. I use NXView to check the GEOTAG, supported by Google map. The position is not right. For example, I took some pictures along a river, but it shows I was in the river... So is there anyway I can fix that?