TTArtisan 11mm F/2.8 ED Fisheye SLR
Fisheye lens • Digital era
- Announced:
- · December 2022
- Production status:
- ● In production
- Country of design:
- · PRC (People's Republic of China)
- Original name:
- · TTArtisan 11/2.8
- Class:
- · Fast full-frame diagonal fisheye 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: | |
| 35mm full frame | |
| 11mm | |
| F/2.8 | |
| 12 elements in 10 groups | |
| 1 ED, 4 HRI | |
| Diagonal (full-frame) fisheye | |
| Canon EF [44mm] | |
| Nikon F [46.5mm] | |
| 180° | |
| Diaphragm mechanism: | |
Diaphragm type: | Manual |
Aperture control: | Aperture ring |
| 10 (ten) | |
| Focusing: | |
| 0.25m | |
| <No data> | |
Focusing modes: | Manual focus only |
Manual focus control: | Focusing ring |
| Physical characteristics: | |
| 439g (Canon EF) | |
| 439g (Nikon F) | |
| ⌀72×85mm (Canon EF) | |
| ⌀72×79mm (Nikon F) | |
| - | |
| - | |
| Accessories: | |
| Removable front filters are not accepted | |
| Built-in petal-shaped | |
| <No data> |
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.
Lenses with similar focal length
| ■Nikon F mount (1) | |||||||||
| Nippon Kogaku / Nikon OP-Fisheye-Nikkor 10mm F/5.6 | M | 9 - 6 | -- | 1968 ● | |||||
| ■Canon EF mount (1) | |||||||||
| Samyang 12mm F/2.8 ED AS Fisheye NCS akaBower 12mm F/2.8 ED AS Fish-eye NCS akaRokinon 12mm F/2.8 ED AS Fish-eye NCS akaWalimex Pro 12mm F/2.8 ED AS Fish-eye NCS | M | 12 - 8 | 0.20m | -- | 2014 ● | ||||
| ■Interchangeable mount (2) | |||||||||
| Sigma MF Ultra-Wideangle 12mm F/8 Fisheye Type 1 [T] akaAccura 180° F/8 Fish-eye akaCosinon Ultra-Wideangle 12mm F/8 Fish-eye akaRegnon 180° 12mm F/8 Fish-eye akaUniversa Superweit 12mm F/8 Fisheye akaUpsilon 12mm F/8 Fish-eye akaVemar Ultra-Wideangle 12mm F/8 Fish-eye | M | 7 - 5 | -- | 1968 ● | |||||
| Sigma MF Ultra-Wideangle 12mm F/8 Fisheye Type 2 [T] akaAccura 12mm F/8 Fish-eye akaBeroflex Super Wide 12mm F/8 Fish-eye akaBerolina Super-Wide 12mm F/8 Fish-eye akaPanomar Gefilta 12mm F/8 Fish-eye akaSpiratone 12mm F/8 Fish-eye | M | 7 - 5 | -- | ● | |||||