Released in April 2016

This lens boasts an ultra-wide 110° angle of view, yet extremely minimal distortion, delivering sharp images right to the edges. Mount: Sony E-mount compatible. Focal length: 15mm. Max aperture: f/4.5. Filter diameter: 58mm / [SW Helia 15F453E] SW Helia 15F453E Released in April 2016
Compatible with Sony E-mount. Equipped with electronic contacts, the lens's usage status is reflected in the Exif information of the shooting data. It also features a built-in distance encoder, which supports 5-axis image stabilization on the camera body. You can also zoom in the viewfinder by operating the focus ring.
Completely Eliminates Distortion: This lens captures straight lines as straight lines, without relying on digital image processing, and thoroughly pursues optical performance. The use of aspherical lenses thoroughly eliminates distortion.
Optimized Optical Design: While maintaining a full-frame image circle, the optical design is optimized for Sony E-mount sensors. High resolution is maintained even at the edges of the image, and color cast and other phenomena are suppressed.
Manual focus for reliable focusing: The all-metal helicoid unit is machined and adjusted with high precision, and the use of high-quality grease that generates just the right amount of torque ensures smooth focusing, allowing for subtle focus adjustments.
Minimum focusing distance: 30cm The minimum focusing distance from the subject to the image plane is 30cm. This expands the possibilities for creating images that take advantage of the intense perspective unique to ultra-wide-angle lenses.
Aperture click switching mechanism: The aperture switching mechanism allows the aperture ring to be opened and closed continuously without making a clicking sound. This eliminates the need to worry about the sound of the aperture ring being picked up when recording video. ■ Specifications ■

Focal length: 15mm; Aperture ratio: 1:4.5; Minimum aperture: F22; Lens construction: 9 groups, 11 elements; Angle of view: 110°; Number of aperture blades: 10; Minimum focusing distance: 0.3m; Maximum magnification ratio: 1:15.4; Maximum diameter x total length: φ66.4 x 62.3mm; Filter: φ58mm; Weight: 298g; Lens hood: Integrated into the lens; Aperture ring: Equipped (manual aperture); Electronic contacts: Yes; Focus magnification: Supported; Exif information: Supported; Lens correction selection: Supported; 5-axis in-body image stabilization: Supported (limited to 5-axis compatible bodies); Other: Aperture switching mechanism included.