Sorry guys, but it's probably not a glass prism

Started Sep 5, 2007 | Discussions thread
dkloi Senior Member • Posts: 1,952
Re: LoL

"A new pentaprism system with internal anti-reflective coating
provides a large, bright image that aids positive, accurate manual


Just tell me how a glass prism can have an internal anti-reflective
coating. I have always been under the impression the prism would be
solid, glass. It's just this one technical phrase which bothers me
because I know how imprecise or misleading Sony descriptions can be
when they want them to be.

I would interpret it as the "pentaprism system" which has the internal anti-refelctive coating, not the "pentaprism". Considering they make a clear distinction in the comparison between the A100 and A700, I would take this as simply an ambiguous statement, rather than indicating a mirror box.

AR coats would be applied to the face of the prism adjacent to the viewscreen, and the exit face where the magnifying optics and metering cells are located.


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Sony RX100 II Konica Minolta Maxxum 7D Sony a5100 Sony a7 III Sony E 16mm F2.8 Pancake +22 more
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