Sigma 30mm F1.4 DC HSM Lens ART Series Lens

Art through photography. Sigma has created this large-aperture F1.4 standard lens focused on delivering high-level artistic expression with its sophisticated optical performance and abundant expressive power through its 62mm filter diameter. It has an angle of view equivalent to a 45mm or a 35mm camera! Designed for artists who prefer creativity over multifunction and compactness. An artists' go-to lens for artistic photography on an APS-C format digital SLR. Made to enhance an artists' creativity with casual snaps, close-up, still-life, portraits, and landscapes. The Hyper Sonic Motor (HSM) ensures a high-speed, and silent AF function, and enables sensible full-time manual focusing by simply rotating the focus ring. This lens is compatible only with APS-C DSLR Cameras.

Show off your creativity with this Sigma 30mm F1.4 DC HSM Camera Lens!

Product Features in Detail

A large aperture F1.4 standard lens
Sigma pioneered the large-aperture APS-C format standard lens category with its 30mm F1.4 lens in 2005. Now that Sigma have reorganized all their lenses into three product lines, they are proud to introduce the fully updated “SIGMA 30mm F1.4 DC HSM”. Offering the shallow depth of field of F1.4 and an angle of view extremely close to that of human vision, this lens stimulates the desire to create and is ideal for many different types of photographic expression. The bright viewfinder also aids focusing and composition of images.

Outstanding image quality for enhanced photographic expression
Convenient angle of view of a standard lens challenges photographers' expression. The SIGMA 30mm F1.4 DC HSM has outstanding optical performance in order to fully perform its best expressive quality at all shooting distances. Optimized power distribution minimizes field curvature thereby preventing a loss of image quality at the edges of photographs. The use of a double aspheric lens minimizes spherical distortion, astigmatism and coma. Coma of point light sources is minimized near the edge of the image, and an attractive round bokeh effect is produced at large-aperture settings.

Incorporating a Rear Focus system
The lens incorporates a rear focus system that prevents focus-dependent variation in aberration, making high-level image quality possible throughout the entire image. With their unchanging barrel length, these lenses also enhance balance and stability for the photographer. Furthermore, since the front of the lens does not rotate, polarizing filters can be used with extra convenience.

Flare and ghosting conscious design
From an early stage, flare and ghosting are thoroughly measured to establish the design which is resistant to strong incident light such as backlight. Sigma's Super Multi-Layer Coating reduces flare and ghosting, and provides sharp and high contrast images even in backlit conditions.

Minimum focusing distance of 30cm
The maximum magnification is 1:6.8, making it excellent for close-up photography.

Hyper Sonic Motor (HSM)
The HSM (Hyper Sonic Motor) ensures a silent, high-speed AF function. Optimizing AF algorithm, smoother AF is achieved. It also enables full-time manual focusing capability which allows sensible focus adjustment by simply rotating the focus ring.

Incorporating Rounded diaphragm
The 9 blade rounded diaphragm creates an attractive round bokeh at large-aperture settings.

Design Concept
The new product lines incorporate rubber for the attachment part of the provided lens hood. For better usability, the designs of the lens cap and AF/MF changeover switch have been improved. In order to ensure high accuracy of the product, all metallic parts and the new compound material, TSC (Thermally Stable Composite), which has a high affinity to metal parts, are housed internally.

Brass made bayonet mount
This lens incorporates a brass made bayonet mount which has both high accuracy and durability. A special treatment to reinforce its strength is applied to the surface giving it greater strength and making it highly resistant to long-term use.

Newly developed "USB DOCK" exclusively for new product lines
Attaching the lens to an optional USB DOCK (planned to be available in 2013) plugged to your computer and using dedicated software “SIGMA Optimization Pro”, you can update the lens firmware and adjust parameters such as focus.

Evaluation with Sigma's own MTF measuring system "A1"
Sigma used to measure lens performance with MTF measuring system using conventional sensors. However, they've now developed their own proprietary MTF (modulation transfer function) measuring system (A1) using Foveon 46-megapixel direct image sensors. Even previously undetectable high-frequency details are now within the scope of their quality control inspections. The SIGMA 30mm F1.4 DC HSM will all be checked using this “A1” before they are shipped.