Converter for SEL16f28
quick question, I am a newbie who has a NEX-5N with the kit 18-55mm and a pancake 16mm f2.8. I would like to expand my SEL16F28 with Sony own converter, either the 0.75X or the fisheye. From a creative point of view, I am really tempted by the fisheye, but my practical side says wide angle! There is only a $10 difference between the two. At $99 for the vcl-ecu1, it sound like a good price!
Which one would benefit me the most?
Saw that I could always "defisheye" with software, any big lost in quality?