Macro Prime lenses for Pentax K-5
The Pentax K-5 incorporates the Pentax KAF2 mount & has a APS-C sized sensor. Currently, we have information on 3 Macro Prime lenses that will fit the K-5.
The K-5 has a crop factor of 1.5 so you have to multiply the lens focal length with 1.5 to get it's full frame equivalence. You can just click the 
icon to view how the lens fits the K-5.
We have additionally built an Advanced Lens Search so you are able to find your perfect lens.
ModelVisualizeFocal LengthApertureStabilizedWeight
Venus Laowa 100mm F2.8 2X Ultra Macro APO100mmf/2.8638g
Venus Laowa 25mm F2.8 2.5-5X Ultra Macro25mmf/2.8400g
Pentax 17 Pre-Orders Outperform Expectations by a Landslide
Samsung D-Xenon 100mm F2.8 macro100mmf/2.8 345g