On the Pentax Japan website, Pentax apologize for running out of stock for the newly released smc PENTAX-DA 50-135mmF2.8ED [IF] SDM lens. Pentax has received large order of lens that far exceeds the original expectation of the company and the production of the lens cannot meet demand.

Pentax promise to increase production to meet the high demand of the lens from the consumers.

This smc PENTAX-DA* 50-135mm F2.8 ED [IF]SDM telephoto zoom lens is a new high performance lens that was previously announced in February 2007. The new 50-135mm lens is designed for exclusive use with PENTAX digital SLR cameras. The PENTAX-DA* series lens features a tightly sealed, weather-resistant and dust-resistant construction to enhance durability for use in rain or dusty conditions making each a perfect companion for the weather-sealed PENTAX K10D digital SLR.

This new lens also features the PENTAX KAF2 mount, which incorporates additional electrical contacts to drive a built-in supersonic motor used in autofocusing operation.

Website : Pentax apologize for the lack of stock with the new 50-135mm Zoom lens