Reviews and Problems with Opteka 58mm 0.2X HD Panoramic "Vortex" Fisheye Lens
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high quality ultra wide fisheye attachment
RAB "RAB", Amazon
15 August 2012
Summary: Works well only if attached to a lens whose entrance pupil is close to the front surface. This corresponds to about a 6 to 7 mm zoom setting on my Fuji HS20, whose 30X zoom has a shortest focal length of 4mm. This produces a decently sharp, minimum color fringed, circular image whose diameter is 220 degrees. It is not possible to zoom the circular image to full-frame without severely degrading off-axis images.