Yes, it had OTF metering for flash, but the OTF was for regular auto exposure modes. the curtain blinds have a neutral pattern with the same reflectivity as the film. As a result, accurate metering can be made from 1/1000 sec up to 120 seconds. Continuous exposures in different lighting or different apertures can be made with the mirror locked up!
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.
S
