Canon EF 70-200mm f/2.8 L IS USM Lens

Product Information

It's small enough to fit into almost any camera bag you have, and is light enough to be a truly take-anywhere lens –which is an astonishing achievement for a 70-200mm, and finally delivers on the promise of mirrorless cameras actually being smaller thanks to similarly svelte lenses. A centimetre (American spelling centimeter, symbol cm) is a unit of length that is equal to one hundreth of a metre, the current SI base unit of length. A centimetre is part of a metric system. It is the base unit in the centimetre-gram-second system of units. A corresponding unit of area is the square centimetre. A corresponding unit of volume is the cubic centimetre. Additionally, for moving subjects or situations where the shutter speed is too slow to support the lens, image stabilization offers three modes; '1' is for standard shooting at slower shutter speeds, '2' is for panning and '3' is for shooting subjects with unpredictable movement. All work well, although mode '3' is much less effective for panning than mode '2', which is unsurprising considering their intended applications. Image quality There are several avenues to buy 200mm equipment, but it’s not that simple. For one thing, there is a shortage of usable 200mm refurbished equipment in the market. Earlier this year, the industry required more than 2,000 to 3,000 new or refurbished 200mm tools or “cores” to meet 200mm fab demand, but less than 500 cores were available, according to SurplusGlobal, a supplier of secondary equipment.

While IDMs are beginning to see a recovery right now, most foundries will continue to see strong demand for 200mm capacity in 2021. “The trailing-edge nodes are very active at the foundries,” Puhakka said. “If nothing else, it’s just accelerating.” A zoom lens like this comes with tradeoffs. There is no magic here. The most obvious one is the aperture which is mediocre. The f4 is available only at its widest focal length. At 35mm it is already f4.8, at 50mm it is f5.6 and as soon as you get past 70mm the aperture get to f6.3. The good thing is that the lens is sharp wide open and in low light situation one needs to rely on camera high ISO performance. Purple fringing, flare, “sunstar” effectSeveral companies, meanwhile, make and sell 200mm deposition and etch equipment. Deposition involves putting thin films on surfaces. Etch tools remove materials. The fluorine-coated front element, to repel water and oil, is also fixed during focusing, allowing the use of filters. The lens is made up of 17 elements in 14 groups with two spherical elements that use extra-low dispersion glass alongside two that use Super ED glass that’s aimed at reducing chromatic aberration. The L-mount version of the lens works with Sigma's 1.4x and 2.0x teleconverters to turn it into a 98-280mm F4 or 140-400mm F5.6 zoom, respectively. Sigma's teleconverters are not available for E-mount, however, and Sony restricts its converters to Sony lenses. If you have an E-mount camera and a teleconverter is something you like to use, you need to spend more on the FE 70-200mm F2.8 GM OSS II or FE 70-200mm F4 Macro G OSS II. Sony a7R IV, 200mm, f/8, 1/250-second, ISO 400 (Credit: Jim Fisher)

KLA has a broad portfolio of 200mm inspection and metrology tools. “We are serving the market with refurbished 200mm KLA tools and are remanufacturing other mature product lines. We have also added 200mm capability to several current tool models,” Odisho said. “In some cases, we have relaunched specific 200mm product manufacturing to meet the large growing, mature market demand. We continue to see strong growth in 200mm, both for added systems as well as for performance and throughput enhancement upgrades. We are also meeting the challenge of product serviceability by doubling down our engineering support to ensure continuity of supply by obsolescence mitigation.” As we’ve come to expect from Olympus, in good light the 12-200mm provides generally fast, decisive and silent autofocus. But its relatively small maximum aperture means it struggles noticeably in lower light levels, especially at the long end of the zoom. So while it’s perfectly well behaved for daytime shooting, it’s not going to be the best choice indoors or at night. Compared to its direct DSLR equivalent, it's even more impressive. The EF 70-200mm f/4L is 780g and 176mm –and that's before you add the extra size of the Canon mount adapter, which you'll need to put an EF lens on your EOS R camera.Another source is the secondary or used equipment companies. These companies obtain cores and refurbish them. Some even build their own name-brand tools.