Close the distance between you and your subject with this Sony 70-300mm f/4.5-5.6 A-mount lens. The ultra-fast super silent motor ensures autofocus is quick and quiet so that you don't disturb your subject or add any extra grinding to the audio soundtrack when shooting movies. As a result, this Sony telephoto lens is ideal for filming, whether in 4K or HD, and it includes SteadyShot image stabilization so that any hand shake or vibrations are compensated for before the light even hits the sensor.
This Sony zoom lens is ideal for outdoor photography whether on the sports field or shooting wildlife, allowing you to get closer to your subjects while staying the same position. It can double up as a near telephoto lens when necessary thank to the 70mm focal length for intimate portraits, yet it excels when fully extended thanks to the extra-low dispersion elements and the aspherical glass elements. These combine with optical coatings to reduce lens flare, chromatic aberrations and ghosting so that each photo from this Sony 70-300mm f/4.5-5.6 A-mount lens is as good as it can possibly get.
ED (Extra-low Dispersion) glass / Super ED 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. To counter such problems, ED glass was developed and is included in select lenses. It dramatically improves 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
SSM (Super Sonic wave Motor)
SSM is a piezoelectric motor that contributes to smooth and silent AF operation. The motor produces high torque at slow rotation, and provides immediate start and stop responses. It is also extremely quiet, which helps keep autofocusing silent. Lenses that feature SSM also include a position-sensitive detector to directly detect the amount of lens rotation, a factor that improves AF precision overall
In general, if an aperture uses 7 or 9 aperture blades, then the shape of the aperture becomes a 7-sided or 9-sided polygon as the aperture is made smaller. However, this has a certain undesirable effect in that the defocusing of point light sources appears polygonal and not circular. á 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
Focus hold button
Once you've adjusted focus to where you want it, pressing this button on the lens barrel will keep the lens locked to that focusing distance. The preview function can also be assigned to this button through the camera's custom settings
Focus range limiter
This function allows you to set a limit on the focusing range which can save you time during auto focus operation - as the lens will not 'hunt' through the entire focusing range. In macro lenses, this limit can be on either the near or far range. Certain lenses set the limit on far ranges only, while others can be set either to a far range or to a range that you specify yourself
Nano AR Coating Original
Sony Nano AR Coating technology produces a lens coating that features a precisely defined regular nano-structure that allows accurate light transmission while effectively suppressing reflections that can cause flare and ghosting. The reflection suppression characteristics of the Nano AR Coating are superior to conventional anti-reflective coatings, including coatings that use an irregular nano-structure, providing a notable improvement in clarity, contrast, and overall image quality
ADI flash metering
Advanced Distance Integration provides precise distance information through the lens distance encoder to the built-in flash, or certain Sony external flashes (HVL-F60M, HVL-F43AM, HVL-F32M, HVL-F20M). ADI provides automatic metering that is virtually unaffected by reflectance or overly dark subjects or backgrounds, yeilding a more reliable exposure from the flash