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2020年11月24日のブックマーク (5件)
-
dann 2020/11/24
- openmpi
- good
- mpi
- roce
- rdma
リンク -
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キヤノン「RF85mm F2 MACRO IS STM」は「RF85mm F1.2L USM」を上回る解像力
キヤノン「RF85mm F2 MACRO IS STM」は「RF85mm F1.2L USM」を上回る解像力 DigitalCameraWorldに、キヤノンのRFマウント用の中望遠単焦点レンズ「RF85mm F2 MACRO IS STM」のレビューが掲載されています。 ･Canon RF 85mm f/2 Macro IS STM review このレンズは全長91mm、重量500グラムのコンパクトなレンズで、小さなカメラバックにも収まる。鏡筒は防塵防滴ではないが、デザインは洗練されていて美しい。 コントロールリングはクリックが無いので、動画の絞り制御用に魅力的だ。 AFは、通常の撮影でもクローズアップでも滑らかで確実にピントが合う。作動音は静かで邪魔にならないので動画用にも適している。 RF85mm F2の光学性能は、ほとんど全ての点で古いEF85mm F1.8を圧倒するだけでなく、
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- 2020年11月25日
- 2020年11月24日
- 2020年11月23日
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