Originally posted by Wolfie665 any ideas about cheap zoom lens much better then SMC Pentax-DA L 50-200mm F4-5.6 ED?When I say cheap I mean budget around £200. I have K-5ii.
Your profile lists a Sigma 70-300 amongst your kit. Have you compared that with the 50-200?
Otherwise any of the three variants of the Pentax 55-300 f4-5.8 would be fine. The WR version is the pick as others have said (not only adds WR but also HD coatings and a nicer build) but the earlier DA and DA-L are otherwise optically identical and are now very cheap. I've got the DA-L and it performs surprisingly well:
Pentax DA-L 55-300mm f4-5.8 sample images - Flickr - Des(Australia). The DA-L has a plastic mount (like the DA 35 f2.4 and the DA-L 55-200) and lacks quick shift, but is otherwise the same as the regular DA. The DA-L isn't supplied with a hood but they are available for a couple of quid on ebay
You may know this already, but you'll have to skip the current model DA 55-300mm f4.5-6.3 PLM even if you can find one within budget - Ricoh haven't released a firmware update to allow it to work properly on the K-5 series.