Canon EF 28 F 1 8 USM Análisis | 54 Datos comparados

The Canon EF 28mm f/1.8 USM is a compact, lightweight wide-angle prime lens featuring a fast f/1.8 aperture ideal for low-light, hand-held shooting. It provides quick, quiet USM autofocusing, decent bokeh, and serves as a 45mm-equivalent "normal" lens on 1.6x crop sensor bodies. However, notable cons include significant chromatic aberration, specifically color fringing in the mid-to-corner regions, and pronounced barrel distortion. Additionally, the lens is prone to flare and struggles with corner sharpness on full-frame bodies, requiring significant stopping down.

The ePHOTOzine review of the Canon EF 28mm f/1.8 USM lens highlights it as a solid, compact, and lightweight wide-angle prime featuring fast, silent Ultrasonic Motor (USM) autofocus. Key advantages include excellent center sharpness when stopped down, a bright f/1.8 aperture for low-light shooting, and a rugged, portable build. Conversely, the review notes significant limitations, specifically very soft corners and low contrast when shooting wide open at f/1.8. Furthermore, the lens suffers from high levels of chromatic aberration and notable vignetting, making it less suitable for critical, edge-to-edge landscape photography, according to ePHOTOzine.

The Canon EF 28mm f/1.8 USM is lauded for its exceptional ergonomics, small size, lightweight design, and fast, silent USM autofocus with instant manual override. It is described as a well-made lens that functions as a versatile wide-angle on full-frame and a perfect normal lens on APS-C cameras. Optically, the lens is soft wide-open at f/1.8 due to spherical aberration, requiring it to be stopped down to f/2.8 for maximum sharpness. Despite this, it is considered to have no real-world weak points for low-light shooting.

The LensTip Canon EF 28 mm f/1.8 USM review highlights that despite its advanced age, this prime lens offers a highly practical focal length for both full-frame and APS-C bodies. In terms of performance advantages, the lens boasts good mechanical build quality, a silent and fast ultrasonic autofocus (USM) motor, and slight distortion levels. Additionally, it maintains a low level of vignetting when mounted on APS-C cameras and is capable of delivering very good image quality in the center of the frame, provided it is stopped down a bit from its widest setting. However, the reviewer points out several severe compromises in optical performance, particularly at wide-open apertures. The primary drawbacks include weak image quality at the maximum f/1.8 aperture and poor resolution at the frame edges on both APS-C and full-frame sensors. Furthermore, the lens suffers from quite significant chromatic aberration, massive coma, and an unsatisfactory level of accuracy from its focusing mechanism, preventing it from coping well with densely packed modern image sensors.

The Canon EF 28mm f/1.8 USM is a highly compact and lightweight full-frame prime lens that serves as a versatile "standard" 45mm-equivalent lens when mounted on APS-C DSLRs. Mechanically, the review highlights several pros, including its solid construction made of very high-quality plastics and a comfortable, broad rubberized focus ring with smooth action. Users will benefit from a non-rotating front element that allows for hassle-free polarizer use, near-silent ultrasonic (USM) autofocus performance, and full-time manual focusing capabilities. Optically, the lens delivers a mixed performance; while center resolution is notably high right from the maximum aperture of f/1.8, vignetting is also remarkably low on cropped sensors due to the "sweet spot" effect. YouTube · However, the lens falls short in key optical categories, presenting notable cons. The most glaring flaw is its weak border resolution, which leaves image edges and corners very soft and lacking in contrast when shot wide open at f/1.8. Even when stopping down the lens to narrower apertures like f/8, the corner quality barely exceeds "very good" levels, failing to match the edge performance expected from a...

The Canon EF 28mm f/1.8 USM lens delivers a mixed performance on APS-C format cameras, characterized by exceptional center sharpness but highly disappointing border quality. According to the review, center resolution is high right from the maximum f/1.8 aperture and peaks at exceptional levels around f/4. Additionally, the lens benefits from a "sweet spot" effect on APS-C sensors, keeping vignetting low at just ~0.7EV at f/1.8 (which is easily eliminated by stopping down to f/2.2). Other notable advantages include low barrel distortion (1.2%), a high mechanical build quality, and a fast, silent ultrasonic (USM) autofocus system. Conversely, the lens suffers from severe optical drawbacks at the outer edges of the frame, making it a frustrating choice for landscape or architectural photography. At f/1.8, the image borders are very soft and suffer from low contrast, and even when stopped down to f/8, the border quality never exceeds a "good" level. Furthermore, lateral chromatic aberrations are quite weak, exceeding an average pixel width of 2 pixels at the borders, which causes visible color shadowing. The lens also exhibits a noticeable focus shift...

The Canon EF 28mm f1.8 USM is a wide-angle lens released in 1995 that works seamlessly across both analog and digital Canon EOS camera bodies, making it a highly versatile tool for street photography. Built with a plastic body and a metal mount, the lens features an aspherical element, internal focusing, and a non-rotating 58mm front filter thread. Its bright f1.8 maximum aperture is a major pro, offering a clear viewfinder image and acceptable overall sharpness and contrast even when shot wide open, which can be easily optimized with minor post-processing. Additionally, its ring-type ultrasonic autofocus motor provides full-time manual focusing capabilities. However, the lens is considered an "under-achiever" due to several optical drawbacks. Its sharpness is notoriously uneven across the frame, featuring a distinct performance dip located right on the edge of the APS-C crop frame, halfway between the center and the corners. When shooting wide open at f1.8, the extreme corners suffer from significant softness and a loss of contrast, requiring the user to stop down to an optimum aperture between f5.6 and f8 to achieve excellent results....

The Canon EF 28mm f/1.8 USM is a full-frame wide-angle prime lens that stands out for being reasonably small, light, and budget-friendly at a street price of around $459. Its notable advantages include a decent build quality, reliable USM autofocus, an internal rectangular light baffle, and an excellent close-focusing capability of 10 inches (a 1:5.5 image ratio) that adds to its shooting versatility. Additionally, it provides an extra two stops of speed over versatile zooms like the 16-35mm f/2.8L II, making it a great low-light option that performs exceptionally well on 1.6x crop EF-S cameras where weaker edges are cropped out. However, the lens suffers from notable optical drawbacks, specifically plenty of astigmatism at f/8 and a significant amount of field curvature, meaning it requires being stopped down to f/5.6 or f/8 to achieve fairly good overall image quality. Furthermore, it does not come packaged with a lens hood, and its manual focus ring is merely "usable" rather than highly refined. While it is a solid value choice, the reviewer notes that significantly more expensive alternatives like the Canon 24mm...