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在以前,由于镜头光圈大小受到限制,喜欢广角镜头摄影的用户会很无奈的放弃大视角下对物体的浅景深效果的特写摄影效果。加之广角镜头本身不容易获得更浅的景深图像效果,以至于在绝大多数摄影师心目中会产生这样的误区——大视角下浅景深的图像效果是难以获得的。但随着适马针对APS-C画幅推出的Art系列新型超大光圈广角变焦镜头——适马18~35mm F1.8 DC HSM镜头的出现,这种错误的思路将被完全打破。
In the past, due to the lens aperture size is limited, like wide-angle lens photography users will be very helpless to give up the perspective of objects shallow depth of field effects close-up photography. Coupled with the wide-angle lens itself is not easy to get a lighter depth of field image effects, so that in the eyes of most photographers will have such a misunderstanding - large perspective shallow depth of field image effects are difficult to obtain. However, with the introduction of Sigma’s new wide-angle Art series wide-angle zoom lens, the Sigma 18-35mm F1.8 DC HSM lens, for APS-C format, this erroneous thinking will be completely broken.