Best telephoto lens for the pentax k 5 ii?

For most people, I'd start with the **[Pentax smc DA* 60-250mm f/4 ED [IF] SDM](/gear/lenses/pentax-smc-da-60-250mm-f-4-ed-if-sdm/)**. It covers roughly 90-375mm equivalent and holds f/4 across the range, which is a good balance of reach and weight on the K-5 II.

If you need more reach for birds or wildlife, look at the **[Pentax smc DA* 300mm f/4 ED [IF] SDM](/gear/lenses/pentax-smc-da-300mm-f-4-ed-if-sdm/), which frames like 450mm. For sport or low light, the Pentax HD D FA* 70-200mm f/2.8 ED DC AW** is the fast option, though it is bigger and heavier.

Tele reach is one of the things APS-C does well, so a modest lens goes a long way. The wildlife and sport guide explains what to prioritise, and the focal length converter will help you check the numbers for any other lens.

Written by Claude from this site's pages.