Canon Ef-s 18-135mm F/35-56 Is Nano Usm Lens Review
Summary
Catechism's EF-S 18-135mm f3.5-5.half dozen IS USM is a general-purpose zoom for its DSLRs with cropped sensors. Canon's 3rd 18-135mm zoom for the EF-S mount, it sports a flexible 7.5x / 29-216mm equivalent range that takes you lot from standard wide-angle to telephoto, making it platonic for travel and general walk-effectually use. What makes the models different though are their AF systems: the latest EF-S 18-135mm IS USM is the first to utilize a Nano-USM motor that combines the polish and quiet functioning of Canon'southward STM models for movies with the speed of traditional USM for action shooting. It really works in practice too with the EF-Due south 18-135mm IS USM feeling much snappier than the previous EF-South eighteen-135mm IS STM model for sports, but remaining smooth and inaudible for video work. Since it's just a little more than expensive than the previous STM version, I'd say it's worth spending the extra for the improved AF speed - y'all too get the bonus of attaching an optional accessory that motorises the zoom. The EF-S 18-135mm IS USM is arguably the all-time general-purpose zoom for APSC DSLR owners.
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Canon EF-S xviii-135mm IS USM review-then-far -
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Intro
Canon's EF-S xviii-135mm f3.5-5.six IS USM is a full general-purpose zoom for its DSLRs with cropped-frame / APSC sensors. Launched in February 2016 alongside the EOS 80D trunk, it becomes Canon's 3rd 18-135mm zoom for the EF-South mount. Like its predecessors it sports a flexible vii.5x / 29-216mm equivalent range that takes yous from standard broad-bending to telephoto, making it ideal for travel and full general walk-around use.
The biggest divergence between the 3 Canon EF-S 18-135mm zooms are their autofocus systems. The latest EF-S 18-135mm IS USM is the beginning to utilise a Nano-USM motor that combines the smooth and quiet operation of Canon'south STM models for movies with the speed of traditional USM for action shooting. It really works in practice too with the EF-S 18-135mm IS USM feeling much snappier than the previous EF-S 18-135mm IS STM model for sports, but remaining polish and inaudible for video piece of work. The EF-Due south xviii-135mm IS USM also features rack gearing on the lower side of its zoom ring, allowing it to mate with the optional PZ-E1 adapter; this provides motorized zoom functioning and if y'all accept the EOS 80D, y'all tin can even operate the zoom remotely using a Wifi-continued smartphone.
In terms of optical construction, the EF-Due south eighteen-135mm IS USM employs 16 elements in 12 groups, an f3.5-five.6 focal ratio with seven diaphragm blades, a closest focusing distance of 39cm for a maximum magnification of 0.28x, and optical image stabilisation good for iv stops of bounty. Like its predecessor, the range ways it'southward a adequately hefty lens, measuring 77mm in diameter (with a 67mm filter thread), 96mm in length and weighing 515g, but equally the flexibility ways yous'll rarely want for anything else for general-use. The previous EF-South 18-135mm STM may exist a little cheaper and still peachy for moving picture employ, but I'd say information technology'southward worth spending the extra on the EF-S 18-135mm IS USM most importantly for its faster USM autofocus merely with the added bonus of calculation a motorized zoom command if desired.
I shot with the EF-S 18-135mm IS USM as my main lens during a 6800 mile roadtrip across the USA. Check out some of my sample images.
In a higher place: The EF-S xviii-135mm f3.5-five.6 IS USM becomes the offset Canon lens to feature electrical contracts and a gear interface for use with the new PZ-E1 Power Zoom adapter. This optional accompaniment clips below the lens butt and uses a Micro USM motor powered by four AAA batteries to adjust the zoom smoothly at a pick of two speeds using a rocker command; the fast speed takes about three seconds to go from 18 to 135mm, while the slow speed takes roughly x seconds. Here's a video of it in do.
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Source: https://www.cameralabs.com/canon-ef-s-18-135mm-f3-5-5-6-usm-review/
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