Aspherical maximum aperture lens
Titel: Bastian Kratzke
The NOKTON 21mm F1.4 Aspherical E-mount is a large maximum aperture
manual focus lens optimized for the imaging sensors of Sony mirrorless cameras.
The 21mm focal length covers an angle of 91° which is about 10° wider than a 24/25mm focal length to create a super dynamic perspective.
Generally, the wider a lens gets the deeper the depth of focus of the lens,
but with the NOKTON 21mm F1.4 Aspherical E-mount lens, the extremely large maximum aperture for a super wide-angle lens enables imaging that utilizes “bokeh” (out-of-focus blur). The minimum focusing distance of 25cm can be used to emphasize the thin depth of focus in the close range.
manual focus lens optimized for the imaging sensors of Sony mirrorless cameras.
The 21mm focal length covers an angle of 91° which is about 10° wider than a 24/25mm focal length to create a super dynamic perspective.
Generally, the wider a lens gets the deeper the depth of focus of the lens,
but with the NOKTON 21mm F1.4 Aspherical E-mount lens, the extremely large maximum aperture for a super wide-angle lens enables imaging that utilizes “bokeh” (out-of-focus blur). The minimum focusing distance of 25cm can be used to emphasize the thin depth of focus in the close range.
The lens utilizes a floating mechanism to maintain excellent imaging quality throughout the focusing range from close distance to infinity. Furthermore, the lens features aspherical optics to eliminate distortion and chromatic aberrations in addition to enabling a compact optical design despite the large maximum aperture. The aperture ring has click stops in 1/3 steps. The lens also features a click stop switching mechanism that enables the click stops to be turned off when shooting video.
The included petal Hood can be attached/removed easily for hassle-free filter work,
and can be attached in reverse for easy storage.
and can be attached in reverse for easy storage.
Technical specifications
Price: 1.399,- EUR
Art-Nr.:106184
Art-Nr.:106184
| Focal length | 21 mm |
| Aperture ratio | 1:1,4 |
| Minimum aperture (F) | 16 |
| selective aperture control | available |
| Lens construction | 13 elements in 11 groups |
| Angle of view | 90,8° |
| Aperture blade | 12 |
| Minimum focus | 0,25 m |
| Maximum reproduction ratio | |
| Maximum diameter | 70,5 mm |
| Length | 79,5 mm |
| Mount | E |
| Electrical contact: Exif data transfer | available |
| Manual focus assistant | available |
| Weight | 560 g |
| Filter size | 62 mm |
| Color | black |
| Others | removable Lens shade included |
| Optional | — |
Downloads
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Printing files (asap)
That can be proud of!
These photos were taken with our 21mm/1:1,4 Nokton aspherical added:
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