Canon EF 100mm F 2 8 Macro USM Review | 54 Data compared

The author acquired the Canon EF 100mm f2.8 Macro USM lens as a versatile option to replace a 50mm lens for both macro photography (achieving a 1:1 reproduction ratio) and portrait work. Key advantages highlighted include its exceptional sharpness, silent and precise USM ultrasonic autofocus, and full-time manual focus override even when set to AF mode. The lens also features a highly useful focus limiter switch that speeds up focusing during non-macro tasks like studio portraiture. While tested across various camera bodies (including the EOS 400D, 1D Mark II, and 50D), the author opted for this Canon model over third-party alternatives specifically for its superior autofocus speed. On the downside, the reviewer notes that the lens is heavy and far less discreet than a standard 50mm prime. The included Type B(B) tripod collar works fine for lighter camera bodies but is poorly suited for heavy professional bodies, forcing users to remove any attached battery grips. Additionally, the manual focus ring feels somewhat loose and slack, though it remains accurate. A major real-world vulnerability arose during a trip to French Polynesia,...

This comprehensive review of the Canon EF 100mm f/2.8L Macro IS USM lens evaluates its performance over three years of fieldwork, emphasizing real-world usability rather than technical lab metrics. Tested on an APS-C Canon 7D, the reviewer highlights that the sensor crop turns this intermediate focal length into a 160mm equivalent, which provides a highly beneficial working distance when approaching skittish subjects like dragonflies and butterflies. The lens's physical build is praised for its high-quality materials and balanced ergonomics. At 990 grams, it is light enough to handle for hours without fatigue, and it features exceptionally placed control switches that sit naturally under the thumb. Furthermore, the manual focus ring delivers a perfect level of resistance, allowing for highly precise, millimeter-accurate adjustments. The review identifies standout strengths alongside minor performance trade-offs under specific conditions. On the positive side, the maximum f/2.8 aperture generates a beautifully soft, creamy bokeh that easily isolates macro subjects. The image stabilization system is highly effective, which helps minimize camera shake when shooting handheld. While the autofocus is fast and sharp enough for standard portrait photography,...

The original Canon EF 100mm f/2.8 Macro lens, manufactured between 1990 and 2000, remains a highly capable performer despite lacking the modern upgrades of its USM and L-series successors. It is built with a robust mechanical design featuring a 10-element optical layout that delivers outstanding sharpness (piqué) and directly covers magnification ratios up to 1:1 without requiring extensions. Mechanically, its standout feature is a deeply recessed front element that acts as a highly effective, built-in lens hood, allowing compatibility with Canon macro flashes without adapter rings. Furthermore, it features a long-travel manual focus ring and a focus distance limiter switch (FULL/LIMIT), which significantly increases precision during meticulous manual focusing setups. However, the lens shows its age through several notable disadvantages, particularly its lack of an USM motor, relying instead on a traditional, noisy, and theoretically slower Arc Form Drive (AFD) autofocus mechanism. Unlike newer versions that use internal focusing, this lens physically extends as the focusing distance decreases, which can accidentally startle live insects during close-up macro shots. Structurally, it is slightly heavier, lacks dedicated space to attach a tripod...

This review compares the Canon EF 100mm f/2.8 Macro USM and the Tamron 90mm f/2.8 Di Macro lenses using a Canon EOS 450D camera. Both lenses offer excellent optical quality, sharp images, high-quality focus rings, and a 1:1 magnification ratio. The Tamron 90mm stands out as a highly budget-friendly alternative that includes a lens hood and storage pouch right out of the box. It also features an intuitive focal range limiter switch (“Full/Limit”) to control autofocus hunting. However, the Tamron has notable ergonomic drawbacks: its barrel extends physically during focusing, which can startle insects, and its focus ring becomes blocked if the lens hood is stored backward on the barrel. Furthermore, its autofocus motor is considerably noisy, making it less suitable for quiet environments like theaters. In contrast, the Canon 100mm delivers a superior handling experience thanks to its internal focusing system, meaning the lens does not change in length, and its completely silent USM ultrasonic autofocus motor. It also offers the major advantage of full-time manual focus override (FTM), allowing users to adjust focus manually at any time without...

The Canon EF 100mm f/2.8 Macro USM serves as a highly capable and "surgical" lens that delivers outstanding image clarity, highly accurate sharpness, and specialized macro performance. It achieves excellent DXOmark scores on APS-C sensors (like the Canon EOS 70D used by the reviewer) and unlocks even greater resolution, smoother bokeh, and a cleaner background blur when paired with a full-frame camera. The lens functions flawlessly with advanced extension tubes (such as Kenko 12 mm stacks) to reach an impressive 2:1 magnification ratio while successfully retaining autofocus and metadata transmission. When pushed to these extreme close-ups, it reveals microscopic details entirely invisible to the naked eye. However, the lens demands a strict understanding of photographic compromises, as it lacks built-in image stabilization. This absence makes handheld shooting incredibly difficult, requiring either a steady tripod or an external flash system—like a ring flash—to safely counter motion blur and the extreme light loss that occurs when closing the aperture to maximize depth of field. Closing down past f/11 to trap more detail also risks heavy image diffraction, which softens the overall image...

The Canon EF 100mm f/2.8 Macro USM is reviewed as a highly versatile, well-built lens that functions exceptionally well both for 1:1 macro photography and as a bright telephoto portrait lens. Optically, the reviewer praises its outstanding performance, noting that sharpness becomes excellent starting at f/4 and reaches its peak at f/5.6. Geometric distortion is non-existent, chromatic aberration is negligible, and a focus-range limiter switch successfully speeds up autofocus operations. The lens barrel is made of high-resistance reinforced plastic, features a non-rotating front element, and stays a constant length during focusing—all of which provide a highly comfortable 15 cm working distance between the subject and the front glass. However, the review highlights several distinct drawbacks, particularly regarding omitted accessories and specific optical weaknesses. A significant disadvantage is its minor susceptibility to lens flare due to the lack of specialized lens coatings found on luxury "L-series" glass, making the use of its included ET-67 lens hood mandatory. Furthermore, a dedicated tripod collar ring is not included with the purchase and commands a steep official price of €210, though a Sigma alternative...