Unfortunately, bokeh quality is not a strong point of the 28-400mm. No onion rings are present in specular highlights, but there is a curious double ring around the outside.残念ながら、ボケ味は 28-400mm の長所ではありません。 明るいハイライト【光源のボケ】にはオニオンリング【玉ねぎボケ】は存在しませんが、外側の周りに奇妙な二重リング【周辺にエッジが出る】があります。… The out-of-focus backgrounds look chaotic because of this and don’t smoothly transition out of focus as well as they could.このため、焦点が合っていない背景は混沌として見え、スムーズにピントがボケていくことがありません。… The autofocus performance was still accurate up close, and the sharpness was decent.オートフォーカスのパフォーマンスは最短撮影距離まで正確で、【接写時の】シャープネスもまあまあでした。(上記Petapixel記事)
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