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3.高斯型高斯型由于跟至今所讲过的三片型和天塞型比较,对于结构面的光栏(也可以认为是镜头的中心)同心性强,所以象散差和象场弯曲校正得很小。而且,因为是六片构成的,球差也能校得很小。由于这个原因,在F2级的大口径标准镜头中,最多地采用了高斯型。并且,不仅摄影镜头,连放大镜头和高性能的微缩镜头等也采用了高斯型,其应用范围广,的确是标准镜头之王。3-1关于四组六片构成的高斯型(1)把高斯型与三片型作比较(图13)
3. Gaussian Gaussian type As mentioned earlier with the three-and-day type compared to the structural plane of the diaphragm (which can be considered as the center of the lens) concentricity, so astigmatism and field curvature correction Very small. Moreover, because it is composed of six, spherical aberration can be very small. For this reason, Gaussian type is the most used in the F2-class large-aperture standard lens. And, not only the photographic lens, even the magnification lens and high-performance micro-lens also uses a Gaussian type, its wide range of applications, is indeed the king of the standard lens. 3-1 About the Gaussian Type Four-Group Six-Component (1) Compare the Gaussian-Type Three-Type (Figure 13)