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Leica Super-APO-Summicron-SL 21 mm F2 ASPH lens review
The Leica Super-APO-Summicron-SL 21 mm F2 ASPH is a high-speed wide-angle for Leica SL cameras. It was announced in October 2023. This lens has the Super-Apo moniker and has a complex design of 14 elements in total, arranged in 11 groups. Leica doesn’t say how many AD (anomalous partial dispersion) elements there are but claims that ‘most’ of the 14 elements are made from ‘special custom glass.’ That may include the three elements with aspherical surfaces, but it’s unclear. Like others in the SL range, the lens also adopts a ‘digital element,’ or what’s better known as a built-in profile, to correct vignetting, distortion and chromatic aberration. While it’s perhaps…
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Leica APO Summicron-SL 50mm F2 ASPH lens review
Announced on 15 August 2019 (see our coverage here), the Leica APO Summicron-SL 50mm F2 ASPH is a relatively compact high-end lens for Leica SL cameras. Inside, the lens design is complex for a 50mm. However, it’s designed for a digital sensor, so some prerequisites must be met. It has no less than 12 elements in total, with several AD (anomalous dispersion) elements to mitigate CA and fringing, plus three with aspherical surfaces to reduce SA and distortion. The lens also adopts what some call a “digital element,” or a lens profile, to correct vignetting, distortion and CA, more as an afterthought in this case, as the lens is so…
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Leica SL2 Announced
Leica has announced the long-leaked and long-expected update to the full-frame mirrorless SL, the appropriately named SL2. It brings several expected and significant updates to the original Leica SL, including a sensor upgrade from the old 24.2MP unit to a 47MP sensor, similar but not identical in pixel count to that in the Leica Q and that of their technology partner Panasonic and their Lumix DC-S1R camera. Although often overlooked, it’s no secret that the original SL electronics and many of its internal components are made by Panasonic and it’s not difficult to see that the SL2 shares much of its DNA with the Panasonic Lumix DC-S1R. Although the imaging…
