The AF100mm f/2.8(D) Macro is a high-performance mid-telephoto lens with continuous macro capability as close as 0.35m, and a maximum magnification of 1:1.
The AF100mm f/2.8(D) Macro provides excellent operation for auto and manual focusing. Minolta's Auto Clutch Mechanism does not rotate the focusing ring during AF drive, making the lens easy to hold and balance. There is no need to operate any switch to activate the mechanism. A focus-hold button, normally only found in supertelephoto lenses, allows the photographers to stop the AF drive and release the shutter at the desired position. The button can also be customized to provide different functions such as continuous autofocus or central sensor selection(when the lens is attached to a camera body with Custom Functions). The focus-range limiter substantially increases focusing speed.
In manual focusing, the wide focusing ring is easy to control, and rotates smoothly.
The quality optics in the highly regarded AF 100mm f/2.8 Macro were adopted for this new lens. This lens is ideal for shooting flowers or small animals and also delivers fine portraiture and landscape results. The "double floating" focusing method corrects curvature of field, curvilinear distortion, spherical and other aberrations to provide fine images at any distance. In addition, the 9-blade, circular aperture produces a smooth and natural rendition of defocused images, as well as nearly circular shapes of point sources of light such as reflection of the morning dew.
The AF100mm f/2.8(D) Macro supports the Dynax/Maxxum 7's ADI (Advanced Distance Integration) flash metering by providing precise distance information from the built-in distance encoder. Highly accurate flash-metering performance is obtained.