The Voigtlander Super Wide Heliar 15mm f4.5 Aspherical III (FE) has a name so long that a 15mm focal length would probably be needed to capture its full width. Voigtlander, which is actually Cosina, is probably best known for making affordable, high quality M-mount lenses, as well as some f0.95 lenses for the Micro Four Thirds mount. This particular lens is the company's first foray into E-mount and is the longest of three recently released focal lengths (the others being 12mm and 10mm). The Super Wide Heliar is optically identical to the VM (Leica mount) version III, which has been successfully adapted by many A7 shooters. The new lens is slightly bigger and heavier, focuses closer, and provides electronic contacts for manual focus assistance, aperture display, and full 5-axis stabilization.

The Voigtlander 15/4.5 specs: 11 elements in 9 groups (some aspherical) Weight - 294 grams Length - 66.4 mm Filter size - 58 mm Min. focus distance - 0.3 m Aperture - 10 blades, f4.5 to f22 in 1/3 stops

Build Quality/Handling (Excellent/Excellent)

The all-metal Voigtlander is beautifully made and is as good or better than the best-made vintage lenses I've tried. The aperture ring clicks through all the stops with measured precision, while the focus ring is incredibly smooth. This lens is a real joy to use and is a great fit for the Sony A7s. It is compact and dense without being too heavy, and is therefore highly portable.

My only qualm is the plastic lens cap that can sometimes come off the lens. This is especially true with a mounted filter. In fact, the cap doesn't really stay on my polarizer at all, so I'll need to pick up a generic 58mm cap to slap on the filter.

The Voigtlander Super Wide Heliar 15mm f4.5 Aspherical III (FE) has a name so long that a 15mm focal length would probably be needed to capture its full width. Voigtlander, which is actually Cosina, is probably best known for making affordable, high quality M-mount lenses, as well as some f0.95 lenses for the Micro Four Thirds mount. This particular lens is the company's first foray into E-mount and is the longest of three recently released focal lengths (the others being 12mm and 10mm). The Super Wide Heliar is optically identical to the VM (Leica mount) version III, which has been successfully adapted by many A7 shooters. The new lens is slightly bigger and heavier, focuses closer, and provides electronic contacts for manual focus assistance, aperture display, and full 5-axis stabilization.

The Voigtlander 15/4.5 specs: 11 elements in 9 groups (some aspherical) Weight - 294 grams Length - 66.4 mm Filter size - 58 mm Min. focus distance - 0.3 m Aperture - 10 blades, f4.5 to f22 in 1/3 stops

Build Quality/Handling (Excellent/Excellent)

The all-metal Voigtlander is beautifully made and is as good or better than the best-made vintage lenses I've tried. The aperture ring clicks through all the stops with measured precision, while the focus ring is incredibly smooth. This lens is a real joy to use and is a great fit for the Sony A7s. It is compact and dense without being too heavy, and is therefore highly portable.

My only qualm is the plastic lens cap that can sometimes come off the lens. This is especially true with a mounted filter. In fact, the cap doesn't really stay on my polarizer at all, so I'll need to pick up a generic 58mm cap to slap on the filter.