Hi,

Steve Morphet wrote:
Steve Jolly [EMAIL PROTECTED] wrote:


Indeedy. Metering with the mirror locked up is nice, but surely the nicest feature of OTF metering is that it can respond to changes of light mid-exposure, for which purpose a pattern printed on the shutter is not required. As far as I can tell, the necessary sensors and electronics to perform this kind of OTF metering are built-in to *all* modern Pentax cameras, not just the LX. Despite this, the LX is the only Pentax camera that can do it, and I'd be interested to know why.


One thing that occurs to me is that the LX uses a relatively complex
half silvered mirror, and a secondary mirror behind the main mirror, in
order to get light onto the metering cell while the mirror is down.
OTF metering while the mirror is up seems easy in comparison.

I read recently that the LX _mirror_ is SMCed to the tune of 15 coats. Anyone know the truth of this?


mike



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