A Wahnsinslinse with existing reason factor

Yes, they were ... However, the "tens" of Sigma is a format filling Fish eye, which means on an APS-C sensor, there are no black edges, the image extends to the edge and without striking vignetting.

Still, I was suspicious and had the glass first time borrowed to test it under adverse conditions possible. The result surprised me positively. The focus needs no comment, it's just overwhelming at all apertures. July afternoon sun in the picture is not a problem, it raises no flare. Distortions are of course present, but normally you buy a fisheye lens. Who are familiar with the specifics of the Fisheye Optic and general perspective, know that distortion may occur virtually not, another time again extremely - all the question of the subject and the camera posture. Wen's bother taking appropriate software and expects parts of the distortion-click straight.

Actually, I have the 10 for QTVR spherical panoramas bought - but quickly found that the fun factor is huge. The design freedom, eg in architectural photography is enormous. The photographer / viewer can be followed by the effect is actually not "get enough" because it does not exist as "the effect". Depending on the camera attitude, focus and motive to streets and building facades can wrap around the viewer, while the church tower in the middle sits bolt upright on the chaos. Of course, the usual Extre wide-angle effects are not a problem.

Mechanically the lens processed orderly, with no surprises. The only oddity: the cover is made of a kind of tube, then put the normal lens cap on. The whole is placed on the lens. Otherwise it would also if the above lens not go. A Cordura holster is one of them, just as a metal stencil for cutting gelatin filters, for which there is land Haletrung in the lens mount behind.

The auto focus does not leave much to be desired, and focuses on a few cm (!!) to infinity super fast. The minimum range is truly amazing the way oppressive, 13 cm means that the front lens almost touches the object - that's almost dangerous, depending on the type of property. So be careful and practice, the best on soft objects such as a dog's nose.

It is interesting that at full aperture, the depth of field can vary actually low - in this extremely short focal length, I would have never imagined. From f / 8 this design option disappears naturally complete again and you can turn off the autofocus actually.

The lens is available for Canon, Nikon and of course for Sigma. At Nikon, there are all 180 ° diagonal angle of view - Canon (slightly smaller sensor) a little less, but also very dramatic.

Conclusion: a fisheye lens for people who never wanted to have a Fisheye.