Shel, Many manufacturers use "serial" numbers that are actually codes containing manufacturing info (like year of manufacture, location, batch, etc.) in addition to giving a unique ID number for a particular product.
I sporadically ID my scans with the date it was scanned and the order it was scanned in (a scan with the serial number "10270115", for example, wouldn't mean there were 10 million plus previous scans, but that this particular image was scan #15 of Oct 27, 2001) Pentax might do the same with their serial numbers. Dan Scott [EMAIL PROTECTED] Shel wrote: > Many lenses have serial numbers that are relatively close, yet the >lenses were made decades apart. Does anyone know how Pentax numbered >the lenses? Did each focal length have a series of numbers attributed >to it, or were lenses numbered in any sort of sequence? > > I have two 50mm/1.4 M series lenses. Their numbers are very far apart, >being 216**** and 713**** Is it possible that Pentax made 5,000,000 or >so of these lenses, or perhaps, like the wide difference in MX serial >numbers, there were two different series of M50/1.4 lenses? > > A couple of lenses have serial numbers that are very close to one >another - separated only by 412. One is an M-series prime and the other >is an A-series zoom. According to Boz's page, the M prime was produced >between 1977 and 1984, and the A zoom was produced from 1984 to 1989. >This leads me to speculate that maybe the lenses were numbered >sequentially, or in batches, without specific regard to series or focal >length. > > The lens with the lowest serial number has a number less than 9999. > >-- >Shel Belinkoff >mailto:[EMAIL PROTECTED] >http://home.earthlink.net/~belinkoff/ >- - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .

