Sony DSLR-A700K Lenses and Accessories Selection Guide - Page 12

Carl Zeiss® Lenses Carl Zeiss Lenses SAL135F18Z ED (Extra low Dispersion) glass Sonnar T*135mm F1.8 ZA • Lens groups/elements: 8/11 • Minimum focus: 28-3/8" (0.72 m) • Filter diameter: 77 mm • Size: (diameter x length): 3-1/2 x 4-1/2" (88.5 x 115 mm) • Weight: 2 lb 3.2 oz (995 g) A standout among medium telephoto lenses due to its large maximum aperture and 3 ED glass elements that compensate for chromatic aberration. Demonstrates high resolving power even at wider apertures and also sharpness from corner to corner, which allows for subtle details to be captured faithfully. Another key benefit is the powerful close-up capability, as 0.25x magnification can be obtained with high image quality at the lens' minimum SAL135F18Z (Sonnar T*135mm F1.8 ZA) Contrast (%) Contrast (%) MTF Open 100 80 60 40 20 MTF F8 100 80 60 40 20 0 4 8 12 16 20 Distance from center of image (mm) 0 4 8 12 16 20 Distance from center of image (mm) R10 line pairs/mm T10 line pairs/mm R20 line pairs/mm T20 line pairs/mm R40 line pairs/mm T40 line pairs/mm For details of MTF, please refer to p.21. (R: radial target, T: tangential target) focusing distance of 0.72 m. In terms of operability, the internal focusing mechanism provides fast autofocusing, and the focus ring does not rotate during AF operation. Focus hold button is also included. When used in conjunction with Super SteadyShot® image stabilization, this lens is excellent for handheld shooting in low-light conditions. 22 SAL1680Z (Vario-Sonnar T*DT 16-80mm F3.5-4.5 ZA) SAL1680Z APS-C format lens Aspherical lens Vario-Sonnar T* DT 16-80mm F3.5-4.5 ZA • Lens groups/elements: 10/14 • Minimum focus: 13-3/4" (0.35 m) • Filter diameter: 62 mm • Size: (diameter x length): 2-13/16 x 3-1/4" • Weight: 15.7 oz (445 g) Zoom lens designed specifically for digital SLRs with APS-C size image sensor, with unusually wide angle to telephoto zoom range that's equivalent to 24-120 mm in 35 mm format. Includes 2 glass-molded aspherical elements to deliver high contrast and a clear, luminous quality to your images. The optical system is optimized for digital SLRs, which ensures high optical performance even while overall lens size is kept small. Other advantages include comfortable handling and operation, plus a circular aperture for beautiful defocusing. 16 mm focal length MTF Open 100 80 60 Contrast (%) 40 20 0 3 6 9 12 Distance from center of image (mm) 80 mm focal length MTF Open 100 80 60 Contrast (%) 40 20 0 3 6 9 12 Distance from center of image (mm) MTF Open 100 80 Contrast (%) 60 40 20 0 3 6 9 12 Distance from center of image (mm) MTF Open 100 Contrast (%) 80 60 40 20 0 3 6 9 12 Distance from center of image (mm) R10 line pairs/mm T10 line pairs/mm R20 line pairs/mm T20 line pairs/mm R40 line pairs/mm T40 line pairs/mm For details of MTF, please refer to p.21. (R: radial target, T: tangential target) Icons: Circular aperture Internal focusing Focus Hold Button Focus Range limiter ADI flash metering SSM (Super sonic wave motor) • For details, please refer to the Lens Technology section on p.26-28. 23