Product Description
Zeiss Loxia 25mm F2.4 Lens for Sony Mirrorless Cameras (E-mount)
- E Mount Lens Mount
- Full Frame Factor
- Precise manual focus
- T* Coating
- Features DeClick
- Virtually distortion-free optics
- High-grade full-metal casing
- Immensely compatible
The Loxia range of prime manual-focus lenses has been designed specifically to fit the high-resolution full-frame sensors of Sony3 α7 E-mount cameras. Size and weight balance the compact format without sacrificing image quality. For videographers, the unique DeClick feature allows silent aperture adjustment, and focussing is extremely smooth.
Application
The ZEISS Loxia 2.4/25 is perfect for landscape and architecture photographers and even for people working in photojournalism, and it achieves exceptional image quality as an entire system with mirrorless Sony cameras. The optical design of the Distagon® lens, with its cutting-edge technology and T*® anti-reflective coating by ZEISS, permit brilliant sharpness across the entire image field, even at full aperture. Thanks to the large focusing range from 9.8 inches to infinity, you can dramatically bring your subject to the fore without losing sight of the background. As part of the ZEISS Loxia family, the ZEISS Loxia 2.4/25 delivers exceptional sharpness and premium-quality, wide-angle shots despite its compact size. For photographers and videographers alike, this wide-angle lens is an outstanding addition to your Sony camera.
Build Quality
Tangible quality that holds its value is what qualifies ZEISS lenses for decades of hard use. A precision-engineered full-metal casing, grippy focus and aperture rings made of metal, and a tough front bayonet and filter screw guarantee stunning photographic results. A special sealing ring on the bayonet also protects the interface between the camera and the lens.
Mount System
The ZEISS Loxia lenses are suitable for use with the mirrorless Sony Alpha cameras with E-mount and were optimized for sensors up to full 35 mm format (24 x 36 mm). With the ZEISS Loxia lenses, the aperture is controlled manually. This allowed the integration of the so-called DeClick feature of the mechanical aperture ring. The cameras feature the corresponding automatic exposure control (A) and manual exposure control (M).
Features
One completely new feature of the Loxia lens is that you can declick the aperture's locking mechanism using a tool (supplied) and an adjustment screw on the bayonet surface. This means that for video applications, you can smoothly eliminate any unwanted differences in brightness as you pan the camera. This feature can also be used with other video systems whose size makes them suitable for adaptation.
Manually focusing a lens means controlling the image result from your fingertips. A good ergonomic design makes all the difference. ZEISS lenses stand out with their large rotation angle which enables precise focusing. Changes are immediately visible in the viewfinder. The high-quality focusing mechanism moves smoothly without play, thus also supporting the intuitive interaction with the focal plane. The precise engraving in meters and feet, and the depth of focus scale provide additional support for manually focusing.
Effects
Dramatic perspectives and a view from extraordinary image angles - ZEISS lenses open up new composition possibilities. Distortion would disrupt the composition because straight lines, whose image does not go through the image centre, would be reproduced with a curved shape. This annoying effect is accordingly and largely compensated through elaborate optical designs at all focal lengths.
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| Focal length | 25 mm |
| Aperture range | f/2.4 – f/22 |
| Camera mount | Sony E-Mount* |
| Format compatibility | Full Frame |
| Focusing range | 0,25 m (9.84") – ∞ |
| Free working distance | 0,16 m (6.42") – ∞ |
| Angular field** (diag. | horiz. | vert.) | 81° / 71° / 50° |
| Diameter of image field | 43 mm (1.69") |
| Coverage at close range (MOD)** | 231 x 154 mm (9.10 x 6.07") |
| Image ratio at minimum object distance | 1 : 6.4 |
| Lens elements | groups | 10 / 8 |
| Flange focal distance | 18 mm (0.71") |
| Entrance pupil position (front of image plane) | 65 mm (2.54") |
| Filter thread | M52 x 0.75 |
| Rotation angle of focusing ring | 90° |
| Diameter max. | 62 mm (2.44") |
| Diameter of focusing ring | 62 mm (2.44") |
| Length (with lens caps) | 88 mm (3.45") |
| Length (without lens caps) | 75 mm (2.93") |
| Weight | 393 g (0.87 lbs) |
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