Leica APO-Macro-Elmarit-R 100mm ƒ/2.8 Photography Lens with R-Mount

Overview
The Leica APO-Macro-Elmarit-R 100mm ƒ/2.8 Photography Lens with R-Mount is a telephoto prime introduced in the 1980s. A telephoto field of view compresses distance and separates a subject from its background, the range portrait and sports photographers work in. The ƒ/2.8 maximum aperture separates a subject from its background and holds shutter speed up as the light falls, closing down to ƒ/22. Its multi-coated elements suppress internal reflection better than the single-coated glass of the same period. The Leica APO-Macro-Elmarit-R 100mm ƒ/2.8 is a full-frame lens native to the R-Mount system.
Features
Key Features
ƒ/2.8 Maximum Aperture
The ƒ/2.8 maximum aperture separates a subject from its background and holds shutter speed up as the light falls, closing down to ƒ/22.
Introduced in the 1980s
The lens dates from the 1980s, which sets what its coatings, its aperture mechanism and its optical design were capable of at the time.
Optical Design
7-Blade Diaphragm
7 blades set the shape of the iris, which is what out-of-focus highlights take their form from when the lens is stopped down.
Focus & Handling
1.5 ft Minimum Focus
Mount & Build
R-Mount
The APO-Macro-Elmarit-R 100mm ƒ/2.8 is native to the R-Mount system, which sets what it fits directly and what it reaches through an adapter.