Leica APO-Summicron-SL 75mm f/2 ASPH. Lens
Leica APO-Summicron-SL 75mm f/2 ASPH. Lens
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The APO-Summicron-SL 75mm f/2 ASPH. from Leica represents a sophisticated short telephoto prime lens that strikes a balance between standard and telephoto focal lengths, specifically designed for full-frame L-mount mirrorless cameras. Its slightly extended focal length is complemented by a bright f/2 maximum aperture, which provides excellent control over depth of field and is advantageous in challenging lighting situations. The lens features an apochromatic optical design that incorporates anomalous partial dispersion glass to minimize color fringing and chromatic aberrations, ensuring high clarity and color fidelity. Additionally, it includes one aspherical element to mitigate spherical aberrations, enhancing sharpness. Multi-layer coatings have been applied to reduce flare and ghosting, thereby improving contrast in bright lighting conditions. The lens is equipped with a Dual Syncro Drive stepping motor, which ensures rapid and silent autofocus performance, while a floating elements system guarantees consistent imaging quality across the entire focusing range. Furthermore, an AquaDura coating has been applied to the exposed elements, and seals have been integrated into the lens design to enhance its performance in demanding environmental conditions.
- Short telephoto 75mm f/2 lens is designed for full-frame Leica L-mount mirrorless cameras, however can also be used with APS-C models where it provides a 112.5mm equivalent focal length.
- Bright f/2 maximum aperture benefits working in low-light conditions and also affords greater control over depth of field for working with selective focusing techniques.
- One aspherical element is used to reduce distortion and spherical aberrations for improved sharpness and accurate rendering.
- Apochromatic design employs anomalous partial dispersion glass to suppress chromatic aberrations throughout the aperture range for increased color accuracy and clarity.
- Multi-layer coatings have been applied to individual elements to suppress surface reflections, flare, and ghosting for increased contrast and color fidelity.
- Dual Syncro Drive stepping motor delivers quick, precise, and near-silent autofocus performance to suit both photo and video applications. This system also avails full-time manual focus override.
- Floating elements system and an internal focusing design maintain consistent image quality throughout the focusing range, from 1.6' to infinity.
- Water-repellent AquaDura coating has been applied to the front and rear optical surfaces to protect against moisture and other elements.
- Weather-sealed design protects against dust and moisture to benefit working in inclement shooting conditions.
Lens |
|
---|---|
Maximum Aperture | f/2 |
Minimum Aperture | f/22 |
Lens Mount | Leica L |
Lens Format Coverage | Full-Frame |
Angle of View | 31.8° |
Minimum Focus Distance | 1.64' / 50 cm |
Maximum Magnification | 0.2x |
Optical Design | 11 Elements in 9 Groups |
Focus Type | Autofocus |
Image Stabilization | No |
Filter Size | 67 mm (Front) |
Dimensions (ø x L) | 2.87 x 4.02" / 73 x 102 mm |
Weight | 1.58 lb / 720 g |