i use a kenko pro 1.4x with that lens on a nikon D700 and it works great. i shoot that combo more than the fisheye alone now, as it was my fav UW lens on crop sensor. cheers,
chris
i use a kenko pro 1.4x with that lens on a nikon D700 and it works great. i shoot that combo more than the fisheye alone now, as it was my fav UW lens on crop sensor. cheers,
chris
Are you using the Kenko with the Sigma 15 on your d700?