这是第五版的S1 70-210 Q-DOS版。。 简单的说是3D版。。出片要用3D眼镜看。。
什么卡扣的没看清。。。
摘录一端资料:"
This is not only the Cosina-made 5th version of the well-respected Series 1 70-210mm zooms, but also is uniquely capable of capturing red/cyan anaglyphs in a single shot.
The lens has 14 elements in 11 groups, does macro to 1:2.5, is lighter than the first 3 versions, and takes a smallish 58mm filter. Macro does not have a separate switch, but is entered via simply focusing past the normal near stop when the lens is set at its maximum focal length.
The Q-DOS anaglyph support consists of a segmented half red, half cyan filter that is internally inserted/removed near the aperture blades by a QDOS/normal switch (right in photo). Q-DOS is only recommended to be used at focal lengths between 135-210mm (marked left in photo), with the lens close to wide open, and the subject fairly close. The captured images need no special processing, but are directly viewable stereo anaglyphs using red/cyan glasses.