The Venus Laowa 10-18mm F4.5-5.6 FE Zoom is currently the widest zoom lens available for Sony full-frame E-mount cameras. Designed primarily for travel photography, Venus optics have managed to compress the size to smallest in its class, less than 10cm in length and weighing only 496 grams. The 102° (18mm) to 130° (10mm) angle of view provides flexibility for photographers to compose landscape or architecture photos with ease. The lens houses with 14 elements in 10 groups with 2 aspherical elements & 1 extra-low dispersion element to deliver exceptional performance. It can focus as close as 15cm for some mini-macro shooting. A rear filter slot is included to fit with 37mm filter. Click/clickless aperture can be toggled by the switch on the lens barrel.