Originally posted by ADICO1982 . . . hello @ all,
I would like to buy the (SMC Pentax-DA 18-135mm F3.5-5.6 ED AL [IF] DC WR) but I'm not sure if it fits my Pentax K-3 can tell me a 100% whether it is fit?
thanks for your help
perhaps this would help folks out
The Pentax Camera Lens Compatibility Chart
" Pentax Lens Compatibility Chart
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Pentax bayonet lenses labeled "SMC Pentax" are referred to as "K" lenses in the table below. Other Pentax bayonet lenses have the lens designation as a part of their name as in "SMC Pentax-FA."
Note that "star" lenses work like their "non-star" counterparts: DA* lenses work like DA lenses, FA* like FA, F* like F, A* like A, and M* like M.
Exceptions:
FA and F "soft" lenses behave like M lenses in terms of metering "
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Pentax K-Mount Lenses Explained: The differences between various Pentax lens series
" Pentax K-Mount Lens Series Explained: The differences between various Pentax lens series
In a nutshell
There are several series of Pentax K-mount lenses; the ones currently being produced include the DA (digital), DA L (cheap digital kit), D FA (full-frame, digital optimized), and FA (full-frame) series. While all Pentax K-mount lenses ever produced are compatible with all current Pentax DSLRs (in some cases with restrictions in that not all exposure modes of the camera are supported by old lenses), there are significant differences between each lens series and each has different features. Furthermore some of the newer lenses do not work with older cameras. We'll be exploring the differences between the various K-mount series lenses in this article "