如果你不熟悉这个术语，单反相机是数码单镜头反光照相机。
If you're not familiar with the term, DSLR cameras are Digital single-lens reflex cameras.
宝丽希凯sx- 70是第一个主动对焦单镜头反光拍照机，于1978年发布。
The Polaroid SX-70 was the first autofocus single-lens reflex camera, released in 1978.
在高端，可更换镜头提供图像清晰度和可编程类似传统35mm胶片式单反相机单镜头反光(或SLR)相机。
On the high end, single lens reflex (or SLR) cameras with interchangeable lens offer image sharpness and programmability similar to the traditional 35mm film-type SLR cameras.
宾得我，男，该传感器用于集中在机身加上机动镜头，成为第一个自动对焦35毫米单镜反光相机于1981年。
The Pentax ME-F, which used focus sensors in the camera body coupled with a motorized lens, became the first autofocus 35 mm SLR in 1981.
宾得我，男，该传感器用于集中在机身加上机动镜头，成为第一个自动对焦35毫米单镜反光相机于1981年。
The Pentax ME-F, which used focus sensors in the camera body coupled with a motorized lens, became the first autofocus 35 mm SLR in 1981.
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