The Sigma 12–24mm f/4.5–5.6 EX DG IF HSM Ultra Wide Angle Zoom Lens is designed for photographers who require maximum coverage with controlled optical performance on Pentax and Samsung SLR cameras. Offering an extreme 122-degree diagonal angle of view at 12mm, this lens enables full-scene capture in tight interiors, sweeping landscapes, and architectural environments where space and perspective are critical. Its optical construction incorporates four Special Low Dispersion elements and aspherical lenses to reduce color fringing, distortion, and edge softness, supporting consistent clarity across the 12–24mm zoom range. The internal focusing system maintains a fixed lens length during operation, improving handling stability and framing accuracy when shifting focus distances. A close focusing distance of approximately 11 inches allows for strong foreground emphasis while preserving wide background context. Sigma’s Super Multi Coating helps control flare and ghosting in challenging lighting, and the EX DG design ensures compatibility with digital SLR sensors. Compact dimensions and balanced weight make this lens well suited for photographers seeking reliable ultra wide performance for interior, architectural, and landscape photography.Bundle IncludesSIGMA 12-24MM FOR PENTAX AF DGCleaning KitLens Cap Keeper

• Feature 1: Bundle Includes: SIGMA 12-24MM FOR PENTAX AF DG + Cleaning Kit + Lens Cap Keeper
• Feature 2: Extreme 122° Ultra Wide Perspective: Capture expansive interiors, architecture, and landscapes with a dramatic 122-degree diagonal angle of view at 12mm. This ultra wide coverage is ideal for photographers working in confined spaces or aiming to emphasize scale and depth, making it a strong choice for real estate, travel, and environmental photography on Pentax and Samsung SLR systems.
• Feature 3: Advanced Optical Correction for Clean Results: Four Special Low Dispersion glass elements and multiple aspherical lenses work together to reduce chromatic aberration, distortion, and edge softness. This optical design supports consistent sharpness and accurate color rendering across the zoom range, helping maintain straight lines and natural detail in wide-angle compositions.
• Feature 4: Internal Focusing with Stable Handling: The internal focusing system keeps the lens length constant while focusing, improving balance during handheld or tripod use. With a minimum focusing distance of approximately 11 inches, the lens supports close foreground emphasis while maintaining wide background context, useful for creative perspective-driven photography.
• Feature 5: Digital SLR Optimized Construction: Designed as part of Sigma’s EX DG series, this lens is optimized for digital SLR sensors and features Super Multi Coating to minimize flare and ghosting in bright or backlit conditions. Compact dimensions and durable construction make it suitable for photographers who require dependable ultra wide performance on Pentax and Samsung SLR cameras.