《摄影原理与器材-成像原理与基本技术.ppt

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2016-12-29 发布于北京
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《摄影原理与器材-成像原理与基本技术.ppt

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光圈——镜头焦距及距离不变的情况下，光圈越大，景深越浅，反之亦然 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 距离——镜头焦距及光圈不变的情况下，越接近拍摄的目标，景深越浅，反之亦然 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 镜头焦距——距离及光圈不变的情况下，焦距越长，景深越浅（即短焦镜头景深长） Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 5.迷惑人的像素　　像素是衡量数码相机的最重要指标。像素指的是数码相机的分辨率。它是由相机里的光电偶合器上的光敏元件数目所决定的，一个光敏元件就对应一个像素。因此像素越大，意味着光敏元件越多，相应的成本就越大。数码相机的图像质量是由像素决定的，像素越大，照片的分辨率也越大，打印尺寸在不降低打印质量的同时也越大。 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 像素 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 10*7 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 20*13 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 50*34 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 800*531 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 2134*1135 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 像素　　是否像素越大越好呢？这取决于你拍摄的相片的用途。如果是用电脑浏览