粤进深 严明会 龙华区观澜街道君子布君新片区城市更新项目，又有新进展。 近日，项目设计采购施工总承包工程（EPC）中标结果公布。中标人为五矿二十三冶建设集团有限公司、福建省朔杰商贸有限公司、香港华艺设计顾问（深圳）有限公司，中标金额高达约 ...

1987年3月，与EOS系统一同推出的EF系列镜头，采用了很多佳能先进的技术，例如1995年推出的搭载IS影像稳定器（Image Stabilizer）的EF 75-300mm f/4-5.6 IS USM；2001年推出的搭载了多层衍射光学元件（Diffractive Optics/DO镜片）的EF 400mm f/4 DO IS ...

Canon Inc. (https://en.Canon-CNA.com) announced today that, in October 2025, Canon reached a historic milestone of producing a cumulative total of 170 million RF and EF interchangeable lenses for its ...

Why you can trust Digital Camera World Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out how we test. What happened to 70-300mm ...

Canon U.S.A., Inc., has recently announced the new RF75-300mm f/4-5.6 lens, an affordable ultra-telephoto zoom lens that can empower entry-level users to capture standout shots. Also introduced is the ...

Earlier this year, I reported on the Canon RF 75-300mm – a new mirrorless lens is a version of Canon's DSLR lens, the EF 75-300mm f/4-5.6 III – causing a stir overseas, with demand so high it quickly ...

Canon has launched the RF75-300mm F4-5.6 lens and the EOS R100 Double Zoom Kit that comes with the Canon RF-S 18-45mm f/4.5-6.3 IS STM Lens and the Canon RF 75-300mm f/4-5.6 Lens. This lightweight, ...

The Canon RF 75-300mm F4-5.6 is a new compact and lightweight 4x telephoto zoom lens aimed primarily at entry level EOS R users who are looking for zoom on a budget. There's an element of nostalgia ...

Canon RF 75-300mm f/4-5.6 Compact Telephoto Zoom Lens for RF Mount - Full Frame APS-C Compatible (Black) $249.00 Shop now Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens for Canon SLR Cameras ...

Images, and the devices that capture them, are my focus. I've covered cameras at PCMag for the past 14 years, which has given me a front row seat for the changeover from DSLRs to mirrorless cameras, ...