Leica APO Summicron SL 28mm F 2 ASPH Review | 54 Data compared

The Leica APO-Summicron-SL 28 f/2 ASPH is highly praised by reviewer Jonathan Slack as an outstanding wide-angle prime lens that prioritizes maximum optical performance over large-aperture bragging rights. Built with a complex design of 13 elements in 10 groups (including three aspherical lenses and anomalous partial dispersion glass), the lens completely eliminates chromatic aberrations, resulting in sharp corner-to-corner clarity and high contrast at the point of focus. Its core pros include exceptional image quality when shot wide open at f/2, a rapid and highly accurate "Dual Synchro Drive" autofocus system, and an innovative magnetic "focus by wire" manual ring that allows for custom linear focus throws. Additionally, its specialized apochromatic design creates a fast drop-off in contrast between sharp and out-of-focus areas, generating a smooth, gorgeous bokeh that mimics the depth of field of lenses that are a full stop faster. However, the lens does come with notable compromises. Its primary cons focus on physical weight and light collection. Weighing in at over 700 grams without its hood, it is not a lightweight lens, even though it balances well on...

The Leica APO-Summicron-SL 28mm f/2 ASPH lens review highlights exceptional optical performance and an identical form factor to other SL Summicron primes, making it ideal for standardizing a photographer's kit. The core pros include its near-zero chromatic aberrations and incredible contrast, which create a sharp transition between the focal plane and a gorgeous, gentle bokeh effect. Furthermore, it boasts exceptional sharpness extending all the way into the corners when stopped down, a close minimum focus distance of 0.24 metres, and a rapid, highly accurate Dual Syncro Drive autofocus system. Videographers will also appreciate the "focus by wire" system, which features a magnetic ring that allows for a linear, fixed focus throw. On the downside, the primary cons of the lens involve its size, weight, and light-gathering limitations. Weighing in at over 700 grams without the lens hood, the reviewer notes that it is not particularly light to carry around for a wide-angle prime. Additionally, by prioritizing a more compact and consistent design over large-aperture "bragging rights," the lens is limited to a maximum aperture of f/2. This design choice means...

The Leica APO-Summicron-SL 28mm F2 ASPH is a high-performance, full-frame L-mount prime lens, tested on the SL2, that delivers exceptional sharpness across the frame and throughout its aperture range. Key optical strengths include outstanding distortion control, minimal chromatic aberration, and smooth, attractive bokeh. While offering superior image quality wide open, the lens achieves its maximum sharpness at f/4-f/8. However, at 700 grams, it is relatively heavy and bulky for a 28mm prime, lacks internal image stabilization, and carries a high, luxury-tier price point. For the full gallery and analysis, visit DPReview.

Conversely, the 28mm APO Summicron-SL paired with an SL body delivers superior, pristine image quality, total color consistency, flawless low-light performance, and zero chromatic aberration, which significantly boosts batch-editing productivity for high-volume photographers. It also features a customizable focus ring throw and shares identical external dimensions with other SL primes for seamless gear management. However, the SL setup is substantially bulkier, more than double the price of the Q2 combo, lacks a macro feature, and features a narrower maximum aperture of f/2.0 compared to the Q2's f/1.7. Ultimately, the reviewer recommends the SL2-S and 28mm SL system for heavy commercial work, while still valuing the Q2 for reception dance floors, street photography, and casual travel.

Jono Slack’s review highlights the Leica APO-Summicron-SL 28 f/2 ASPH for its exceptional sharpness, gorgeous bokeh, and consistent size with other SL prime lenses. It is praised for outstanding optical performance wide open with virtually no flare or chromatic aberration. Leica Forum The review notes the lens is relatively heavy at over 700 grams and uses a "focus by wire" electronic system, though this is mitigated by linear focus options. A noted limitation during testing was that pandemic restrictions restricted its use for environmental portraiture, which is a primary application for this focal length.