On 6 Jul 2004 at 7:02, Don Sanderson wrote:

> Does anyone know if there is a clear cut distinction between these different
> Pentax AF lens designations, or perhaps a site that lists the differences? Also
> what is the difference between SMC and SMCP?

Search and you will find:

http://www.bdimitrov.de/kmp/

SMC is the acronym for Pentax's Super Multi-Coating process, SMCP is the 
shortened version of "SMC Pentax" as it appears in lens designations ie:

SMC PENTAX-FA  24-90/3.5-4.5 AL [IF]


Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications/
Pentax user since 1986, PDMLer since 1998

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