Leica APO-Summicron-M 75mm f/2 ASPH. Lens | Black

The black APO-Summicron-M 75mm f/2 ASPH. from Leica is characterized by its optically sophisticated design, making it an excellent choice for portrait photography with M-mount rangefinder cameras. Its apochromatic classification stems from the incorporation of anomalous partial dispersion glasses, which effectively minimize color fringing and chromatic aberrations. Furthermore, an aspherical element crafted from high refractive index glass enhances the control of spherical aberrations, resulting in exceptional sharpness and clarity. The lens also features a rear floating element that ensures consistent image quality across the entire focusing range, including at the minimum focusing distance of 2.3 feet. Additionally, this compact lens is equipped with a built-in extendable lens hood to protect the front element, and the front is designed to accommodate 49mm screw-on filters.

• The apochromatic design incorporates one fluorite element alongside one glass element with anomalous partial dispersion, effectively minimizing chromatic aberrations and color fringing, thereby enhancing clarity and color fidelity across the entire aperture range.
  
  
• In addition to its apochromatic classification, this lens features a double Gauss optical configuration positioned in front of the aperture, complemented by a highly refractive aspherical glass element and a design akin to the Summilux-M 50mm f/1.4 located behind the aperture. This combination significantly mitigates distortion while improving overall sharpness and ensuring consistent illumination.
  
  
• A floating element is integrated to preserve clarity and sharpness throughout the entire focusing range, particularly at closer distances.
  
  
• The bright f/2 maximum aperture is advantageous for working in challenging lighting conditions and provides enhanced control over depth of field.
  
  
• The manual focus design allows for a minimum focusing distance of 2.3 feet, achieving a maximum magnification ratio of 1:7.
  
  
• An extendable built-in lens hood is included to shade and protect the front element, effectively reducing lens flare and ghosting. Furthermore, the front of the lens is threaded to accommodate 49mm screw-in filters.