X300 Ultra 带来的第一个新东西，是高达 400mm 的蔡司增距镜。
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（二）引航员或者除船员外为船舶提供服务的其他任何人；，这一点在heLLoword翻译官方下载中也有详细论述
Most digital images intended for viewing are generally assumed to be in sRGB colour space, which is gamma-encoded. This means that a linear increase of value in colour space does not correspond to a linear increase in actual physical light intensity, instead following more of a curve. If we want to mathematically operate on colour values in a physically accurate way, we must first convert them to linear space by applying gamma decompression. After processing, gamma compression should be reapplied before display. The following C code demonstrates how to do so following the sRGB standard: