“Three-group floating” focusing construction uses three independently moving groups, which holds focusing-related changes of aberrations to a minimum giving excellent image quality all the way from infinity to life size. Also, during focusing the front ring does not rotate making use of front-mounting accessories like macro ring lites simple and effective. De Canon EF 100mm f/2.8 USM macro is een medium teleobjectief met een 1.0x vergroting. The lens length remains constant and a long working distance of 149mm makes worrying about getting too close to the subject unnecessary. De Canon EF 100mm F/2.8 USM macro is een objectief dat erg geschikt is voor portret- en macrofotografie. For the first time in a 1X focusing telephoto macro lens, inner focusing is used. The full-time mechanical manual focus gives very smooth manual focusing. It incorporates a ring type USM giving quiet, high-speed autofocus. Although it replaces the EF 100mm f/2.8 MACRO lens marketed in 1991, it is a completely new design. It seems like either Canon has a blind spot when it comes to improving their products, they simply refuse to see real issues lying right on the surface, OR their stuff is being designed by non-photographers (marketers maybe).This telephoto macro lens is capable of focusing to life-size (1X) without attachments. USM: Ultra-Sonic Motor: The focus motor operates silently. S: Only works on newer, small ( 1.6x factor) DSLRs, which are the 40D, 30D, 20D, 20Da (astronomical), Digital Rebel XTi, Digital Rebel XT and the original Canon Digital Rebel. ![]() The extra magnification is of course the good thing (technically a built-in extension tube), as well as all the expected improvements in AF, IS, SA, weather sealing, coatings etc. The EF 100mm F/2.8L Macro IS USM Lens is part of Canons L series lenses. Canon calls this the Canon Macro Lens EF-S 60mm f/2.8 USM. And didn't even realize that it was the arc-form drive version which was introduced before Canon introduced the USM macro lens. The EF 100mm f/2.8L Macro IS USM has a true macro magnification ratio of 1:1, meaning the object you are photographing in real life is the same size as on. ![]() I purchased a lens which was advertised as a 100mm f/2.8 Macro USM lens. With impressive macro performance there is always a chance to. It could have easily been 72mm, which is a much more popular size, or perhaps a 58mm. I thought that there were only two versions of the Canon 100mm f/2.8 Macro IS and Non-IS wit both being USM. The immaculately designed the Canon EF 100mm F/2.8 L IS USM Macro lens offers multiple uses. The Canon EF 100mm f/2.8 USM Macro is one of two new 100mm macro lenses in Canon's range, the other being the more expensive L-series optic, the CanonEF 100mm f/2.8L Macro IS USM. Plus, the awkward 67mm filter thread size is such an annoyance. And the old one has a huge advantage when mounted through the adapter ring with drop-in filters or a third party adapter with variable extension tube functionality. The new RF version still comes without the rather must-have tripod collar. The EF 100 Macro IS was $1049 at release.
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