Disappointed with K-30.

Pentax DSLR's are weather and dust proofed. and offer the same level protection as the da* series lens.

WR lens on the other hand do not

"The next category of “all weather” PENTAX lenses is designated “WR”. These affordable
lenses utilize a simplified weather-resistant construction which makes it difficult for water to enter the lens.
PENTAX WR lenses are categorized weather-resistant."

so you fit a WR lens to a Pentax DSLR it is no longer weather and Dust proof but only resistant.

if you us a non WR lens then the body no longer offers resistance even.

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