A full-frame24mm to 240mm zoom range allows this one lens to cover an extensive variety of shooting situations with 10x effective zoom range, making it ideal for landscape, snapshots, portraits and travel where reducing luggage is a priority. The ability to switch from wide angle to telephoto without having to change lenses also means that more of those fleeting moments that make great shots will be captured. The advanced optics include 5 a spherical elements and 1 ED glass element, achieving high-quality performance in a compact overall design. An advanced linear motor drives the focusing mechanism for quick, smooth response throughout the extended zoom range. Handheld telephoto shots and low-light photography are facilitated by built-in Optical Steady Shot (OSS) image stabilization. Like all other FE lenses, the design is dust and moisture resistant. A full-frame24mm to 240mm zoom range allows this one lens to cover an extensive variety of shooting situations with 10x effective zoom range, making it ideal for landscape, snapshots, portraits and travel where reducing luggage is a priority. The ability to switch from wide angle to telephoto without having to change lenses also means that more of those fleeting moments that make great shots will be captured. The advanced optics include 5 aspherical elements and 1 ED glass element, achieving high-quality performance in a compact overall design. An advanced linear motor drives the focusing mechanism for quick, smooth response throughout the extended zoom range. Handheld telephoto shots and low-light photography are facilitated by built-in Optical SteadyShot (OSS) image stabilization. Like all other FE lenses, the design is dust and moisture resistant. When changing your aperture to defocus the background, the light sources appear blurred. This ‘bokeh’ effect of the blurred background can be enhanced with circular aperture blades used in this lens. Conventional aperture blades have flat sides creating unappealing polygonal shaped defocussed points of light. a lenses overcome this problem through a unique design that keeps the aperture almost perfectly circular from its wide-open setting to when it is closed by 2 stops. Smoother, more natural defocusing can be obtained as a result. Aspherical lens design dramatically reduces spherical aberration while also reducing lens size and weight. Spherical aberration is a slight misalignment of the light rays projected on the image plane. This is caused by differences in refraction at different points on conventional spherical lenses which degrade image quality in large-aperture lenses. Specially shaped “aspherical” elements near the diaphragm restore alignment of light rays at the image plane, maintaining high sharpness and contrast even at maximum aperture and can also be used at other points in the optical path to reduce distortion. Well-designed aspherical elements can reduce the total number of elements required in the lens, thus reducing overall size and weight. Only the middle groups of the optical system move to achieve focus, so the overall length of the lens does not change. Other important benefits include fast autofocusing and a short minimum focusing distance. Also, the filter thread at the front of the lens does not rotate, which is convenient if you’re using a polarizing filter. Gyro sensors built into the lens detect even the slightest movement, and the stabilization lens is precisely shifted to counteract any image blur that might occur. The use of precision, quiet linear motors and technology inherited from high-end Sony professional camcorders results in exceptionally quiet, effective image stabilization that contributes to high-quality movies as well as stills. 2015 Sony Electronics All rights reserved. Reproduction in whole or in part without written permission is prohibited. Sony is not responsible for typographical and photographic errors. Features and specifications are subject to change without notice. All rights reserved. Sony, the Sony logo, (alpha) logo, and SteadyShot are trademarks of Sony All other trademarks are trademarks of their respective owners. FROM THE MANUFACTURER FE 24-240MM F3.5-6.3 OSS FULL-FRAME E-MOUNT TELEPHOTO ZOOM LENS A full-frame24mm to 240mm zoom range allows this one lens to cover an extensive variety of shooting situations with 10x effective zoom range, making it ideal for landscape, snapshots, portraits and travel where reducing luggage is a priority. The ability to switch from wide angle to telephoto without having to change lenses also means that more of those fleeting moments that make great shots will be captured. The advanced optics include 5 aspherical elements and 1 ED glass element, achieving high-quality performance in a compact overall design. An advanced linear motor drives the focusing mechanism for quick, smooth response throughout the extended zoom range. Handheld telephoto shots and low-light photography are facilitated by built-in Optical SteadyShot (OSS) image stabilization. Like all other FE lenses, the design is dust and moisture resistant. ADDITIONAL FEATURES CIRCULAR APERTURE When changing your aperture to defocus the background, the light sources appear blurred. This ‘bokeh’ effect of the blurred background can be enhanced with circular aperture blades used in this lens. Conventional aperture blades have flat sides creating unappealing polygonal shaped defocussed points of light. a lenses overcome this problem through a unique design that keeps the aperture almost perfectly circular from its wide-open setting to when it is closed by 2 stops. Smoother, more natural defocusing can be obtained as a result. ASPHERICAL LENS ELEMENTS Aspherical lens design dramatically reduces spherical aberration while also reducing lens size and weight. Spherical aberration is a slight misalignment of the light rays projected on the image plane. This is caused by differences in refraction at different points on conventional spherical lenses which degrade image quality in large-aperture lenses. Specially shaped “aspherical” elements near the diaphragm restore alignment of light rays at the image plane, maintaining high sharpness and contrast even at maximum aperture and can also be used at other points in the optical path to reduce distortion. Well-designed aspherical elements can reduce the total number of elements required in the lens, thus reducing overall size and weight. INTERNAL FOCUSING Only the middle groups of the optical system move to achieve focus, so the overall length of the lens does not change. Other important benefits include fast autofocusing and a short minimum focusing distance. Also, the filter thread at the front of the lens does not rotate, which is convenient if you’re using a polarizing filter. LENS-BASED OPTICAL IMAGE STABILIZATION Gyro sensors built into the lens detect even the slightest movement, and the stabilization lens is precisely shifted to counteract any image blur that might occur. The use of precision, quiet linear motors and technology inherited from high-end Sony professional camcorders results in exceptionally quiet, effective image stabilization that contributes to high-quality movies as well as stills. 2015 Sony Electronics Inc. All rights reserved. Reproduction in whole or in part without written permission is prohibited. Sony is not responsible for typographical and photographic errors. Features and specifications are subject to change without notice. All rights reserved. Sony, the Sony logo, (alpha) logo, and SteadyShot are trademarks of Sony All other trademarks are trademarks of their respective owners.Fast focus w/ a linear motor drive and an inner focus mechanism, Dust and moisture resistant design. Corner to corner sharpness from 5 Spherical elements, ED glass element reduces flare and ghosting, 7-blade circular aperture contributes to gorgeous bokeh. Minimum Focus Distance : 1.64 ft-2.63 ft (0.5 m-0.8 m), Maximum Magnification ratio : 0.27x, Focal-Length : 24-240 mm. Filter Diameter - 72 mm. A perfect match for a7 series, 35mm full-frame E-mount cameras, 10x magnification with a wide 24mm to super tele 240mm, Optical Steady Shot image stabilization for handheld shooting.Maximum Focal Length: 240 Millimeters. Camera Lens Description: 240 millimetres. Compatible Mountings: Sony E. Lens Type: Telephoto. Brand: Sony. Country of Origin: Japan. Manufacturer: Sony. Date First Available: March 1, 2015. Is Discontinued By Manufacturer: No. Best Sellers Rank: #95 in Mirrorless Camera Lenses. Customer Reviews: 4.6 out of 5 stars 269 ratings 4.6 out of 5 stars. Batteries: 1 Lithium Ion batteries required. Item model number: SEL24240. : B00U29GNC8. Item Weight: 1.72 pounds. Product Dimensions: 4.69 x 3.19 x 3.19 inches.