Rockstar 10mm F/8 ED Fisheye M
Fisheye lens • Digital era
- Announced:
- · July 2023
- Production status:
- ● In production
- Country of design:
- · PRC (People's Republic of China)
- Original name:
- · R 10/8ED
- Class:
- · Slow APS-C-format diagonal fisheye lens
- · Body cap lens
Abbreviations
| ED | The lens incorporates low dispersion elements. |
| FISHEYE | An ultra-wide angle lens with strong uncorrected barrel distortion and extreme angle of view. |
Specification
| Optical design: | |
| APS-C | |
| 10mm | |
| F/8 | |
| 5 elements in 4 groups | |
| 3 ED | |
| Diagonal (full-frame) fisheye | |
| Leica M | |
| 150° | |
| Diaphragm mechanism: | |
Diaphragm type: | Fixed |
Aperture control: | None |
| Focusing: | |
Coupled to the rangefinder: | - |
| 0.30m | |
| <No data> | |
Focusing modes: | Manual focus only |
Manual focus control: | Focusing ring |
| Physical characteristics: | |
| 36g | |
| ⌀52×19mm | |
| - | |
| - | |
| Accessories: | |
| Screw-type 49mm | |
| Not available |
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
A version of the 10mm F/8 II APS-C lens, but for some reason with the Leica M mount, although all Leica M rangefinder cameras produced today are full-frame. Why, for what purpose, is there demand - did the Chinese manufacturer worry about all these questions? The filter size has been reduced from 55 to 49mm.
Lenses with similar focal length
| ■Leica M mount (1) | |||||||||
| TTArtisan 11mm F/2.8 ED Fisheye M | M | 11 - 7 | 0.17m | -- | 2019 ● | ||||