在物光通过透镜系统到达CCD平面的彩色数字全息研究中，将每一色光的像视为像空间中的物体。基于全息图补零的一次傅里叶变换(1-FFT)重建方法，导出既能较好地统一不同色光重建物体的物理尺寸，又能考虑透镜色差影响的彩色数字全息图像重建方法。对该方法的研究结果表明，透镜色差的影响等效于让物体的重建像偏离了理想的重建像平面。然而，数字全息重建图像具有一定的焦深，在多数情况下，可以忽略透镜色差的影响，利用厂家给定的焦距标称值获得满足实际需要的彩色重建图像。

In the research of color digital holography with CCD-recording and lens-imaging, each monochromatic image could be regarded as an objective image projected on the CCD sensitive plane. Based on single fast Fourier transform (1-FFT) reconstruction method via zero-padding, a new reconstruction method in color digital holography is proposed. According to this method, not only the size of reconstructed images in different monochromatic light is same, but also the influence of lens′s chromatic aberration can be taken into account. The study demonstrates that the influence of lens′s chromatic aberration is equivalent to an offset of reconstructed image apart from ideal imaging plane. Fortunately, in digital holography the reconstructed image has a certain focal depth. Thus, the influence of lens′s chromatic aberration may be ignored in most cases. Depending on nominal lens′s focal length supplied by manufacturer, a reconstructed color image that meets practical requirement can be got.