Canon macro lens ef 100mm1/17/2024 ![]() ![]() The 12.5mm lens will let you get close-ups of the eyes of the things that live on the eyes of the insects you're talking about. They're used on a bellows, and you can get adapters that will couple the Minolta MC/MD mount lenses/bellows to a Canon EF-mount camera. They are actually microscope-type lenses, available at 12.5mm and 25mm focal lengths, IIRC. If you want to get really big and don't mind fishing around in the used equipment and odds-and-sods end of the photo market, a really interesting option would be the Minolta micro lenses. The cheap option for this strategy would be to reverse-mount a wide-angle lens on extension tubes or bellows. Canon's answer is a "reverse zoom" (the 1:1-5 65MP-E), which is essentially a zoom lens with the far end of the lens anchored in place (instead of the end at the flange, as with a normal zoom) reducing the focal length of the lens increases the magnification at the film/sensor plane. At sizes of 1:1 or smaller, a longer lens gives you additional working space at little cost, but as the magnification gets bigger, the amount of extra room required behind the lens becomes an extreme penalty. Somewhat counter-intuitively, if you want really huge magnification while keeping the camera assembly to a manageable size, you need to go to a wider lens, not a longer lens. That all said - many macro photographers do still prefer manual focusing simply because it's easier to fine-tune a specific spot.As has been mentioned already, one or more extension tubes will get you closer than the macro lens by itself can. The performance in contrast AF mode (aka LiveView) was also decent(both on the 5D II and 50D). During our field tests the AF accuracy was excellent. Nonetheless Canon provides a three step focus limiter in order to avoid AF hunting throughout the range which can be a problem when using AF in macro situations. The AF is based on the usual ultrasonic motor (USM) which is both very fast and virtually silent. The IS efficiency at more conventional focus distance remains unchallenged by these thoughts of course. However, the IS is also able to handle tripod-induced shake so it does certainly make sense in this scope. The depth-of-field is so shallow here that shake due to "free hand" shooting is just one of your problems. Whether it makes sense to take macro images at 1:1 magnification with activated AF and IS is a different story. These extremes seem to be a little optimistic but they may work out at times (and if you skip your coffee). Canon claims an efficiency of 2 f-stops at 1:1 magnification and 4 f-stops at standard focus distances. The Canon lens feature a new "hybrid" IS which does not only compensate "conventional" shake but also linear movements. Nikon won the race here although their VR is not all that efficient in macro situations. It took Canon quite a while to release their first macro lens featuring an image stabilizer. The Canon EF extension tubes are supported whereas the EF tele converters cannot be used. Similar to the non-L macro lens it features a "true" inner focusing system so the lens does not extend when focusing towards closer focus distances. The broad rubberized focus ring works very smooth. The lens body is made of very high quality plastics and a metal mount. The build quality is excellent but then we've expected no less from a professional grade "L class" lens. In theory this does allow a higher degree of corrections but you also risk more flare in contra light situation. Just like most IS lenses the design complexity increased quite a bit from only 12 elements in 8 groups in the "conventional" macro lens to 15 elements in 12 group. The lens does not replace the highly popular EF 100mm f/2.8 USM macro but is meant as a higher quality option featuring Canon's proven lens-based IS (Image Stabilizer). It's a full format lens but you can naturally also use it on your APS-C DSLR where its field-of-view is equivalent to about 160mm in classic terms. The Canon EF 100mm f/2.8 USM L IS macro is the 6th macro lens in the Canon EF lens lineup. Please forgive us but for obvious reasons we've reused some portions of the corresponding full format review of this lens. Kindly provided for testing purposes by Wolfgang Scholten! ![]()
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