I believe the optics are the same, except the D version has the distance encoder. (Your image exif actually records that distance too) Besides 3d matrix metering, I believe the Nikon flash system uses the distance information too.
I believe the optics are the same, except the D version has the distance encoder. (Your image exif actually records that distance too) Besides 3d matrix metering, I believe the Nikon flash system uses the distance information too.