Features a minimum working distance of only 2.4cm with 1:1 magnification, this 30mm f/3.5 macro lens for your Sony NEX camera lets you focus in on all the tiny details with superb photo and video quality.
Aperture (Max.) : f/3.5
Aperture (Min.) : f/22
Filter Diameter : 49mm
Lens Groups-Elements : 6 groups, 7 elements (3 aspheric surfaces)
Minimum Focus Distance : 3.84" (9.5cm)
Aspheric Elements : 3 aspheric surface
AF for Movie Capture : Yes
Aperture Blade : 7 blades (Circular aperture)
Dimensions (Max. Diameter x Length) : 2-1/2 x 2-1/4" (62x55.5mm)
Direct Manual Focus : Yes
Exterior Finish : Metal
Focal Length (35mm equivalent) : 45mm
Internal Motor : Yes (Stepping motor)
Lens Weight : 4 7/8 oz (138g)
Low Noise During Movie Capture : Excellent
Maximum Magnification : 1.0x (APS-C)
Mount Material : Metal
Dimensions (Approx.) : 2 1/2 x 2 1/4" (62 x 55.5mm)
Weight (Approx.) : 4 7/8oz (138g)
E 30mm F3.5 Macro E-mount Macro Lens
Macro photography can be a creative, educational and thoroughly enjoyable pursuit. The SEL30M35 has been designed to offer versatile, high-performance macro capabilities in a lens that is compact, lightweight and easy to use. It is a true 1:1 macro lens with a 3.84" (9.5cm) minimum focussing distance that allows tiny subjects and details to be rendered with excellent resolution and contrast. But it also functions as an excellent "normal" lens for day-to-day shooting, and a smooth, quiet internal lens drive system makes it suitable for shooting movies as well.
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. α 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.
ED (Extra-low Dispersion) glass
As focal lengths get longer, lenses built with conventional optical glass have difficulties with chromatic aberration, and as a result images suffer from lower contrast, lower color quality, and lower resolution. ED glass dramatically reduces chromatic aberration at telephoto ranges, and provides superior contrast across the entire image, even at large aperture settings. Super ED glass provides enhanced compensation for chromatic aberration.
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. Advanced Aspherical (AA) elements are an evolved variant, featuring an extremely high thickness ratio between the center and periphery. AA elements are exceedingly difficult to produce, relying on the most advanced molding technology to consistently and precisely achieve the required shape and surface accuracy, resulting in significantly improved image accuracy and quality.
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.
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.