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Abbreviations

Model history (2)

Specification

Source of data

• Manufacturer's technical data.

Typical characteristics of fisheye lenses

• Extreme angle of view (at least 180° diagonally);
• Circular types (the image circle of the lens is inscribed in the image frame) or diagonal types (cover the entire image frame);
• Usually of equidistant projection type, with the distance from the picture center to any given point always proportional to the angle from the optical axis to that point;
• Huge barrel distortion;
• Short closest focusing distance (0.20 - 0.30m with 35mm full-frame prime lenses);
• Very large depth of field, eliminating the need for autofocus or precise manual focusing;
• Due to the extreme angle of view and convex front element, front filters cannot be used;
• Often equipped with a filter turret with swivel-mounted filters;
• Often come with a small, built-in petal-shaped lens hood (*).

(*) Some APS-C models have a detachable lens hood, which allows such lenses to be used on 35mm full-frame cameras as circular fisheyes.

From the editor

In the description, the manufacturer calls this lens a professional one and claims that it produces excellent resolution. This is, of course, a strong exaggeration: body cap lenses, to which this Rockstar 10/8 belongs, will never be comparable to professional models in terms of image quality or functionality. And to be honest, this Rockstar doesn’t measure up to fisheye lenses with its viewing angle of only 150°. Also, in our opinion, this lens doesn't really need a focusing ring, since fisheye lenses are famous for providing a very wide depth of field.

Lenses with similar focal length